THE BRITISH SEA-ANEMONES AND CORALS. LONDON : R. CLAY, PRINTER, BREAD STREET HILL. \'L ATE V. ^^^^^^^^^M||&^^ 1 1 ^^^^^^^Bk'' ^ k IH^-^- ^^^^H^L.^'- 9 /*■ rt. c. a£i. .'/V COLOURS Br W.DICHES. 1 BOLOCERA TUEDI/E, 3 AIPTASIA COUCHII. 2 ANTHEA CEREUS 4. SACARTIA COCCINEA 5 . S. TROCLODYTE S. A CTINOL GIA BBITANNICA. i%M ^^^ A HISTORY OF THE BEITISH SEA-ANEMONES AND CORALS. WITH COLOURED FIGURES OF THE SPECIES AND PRINCIPAL VARIETIES. BT I PHILIP HENRY GOSSE, E.R.S. LONDON: VAN VOORST, PATERNOSTER ROW. 1860. PREFACE. In writing the following pages, I have lahoured to produce such a " History of the British Sea-Anemones and Corals," as a student can work Avith. Having often painfully felt in studying works similar to the present, the evil of the vagueness and con- fusion that too frequentl)'' mark the descriptive portions, I have endeavoured to draw up the characters of the animals which I describe, with distinctive precision, and with order. It is said of Montagu that, in describing animals, he constantly wrote as if he had expected that the next day would bring to light some new species closely resembling the one before him ; and therefore his diagnosis can rarely be amended. Some writers mistake for precision an excessive minuteness, which only distracts the student, and is after all but the portrait of an individual. Others describe so loosely that half of the characters would serve as well for half-a-dozen other species. I have sought to avoid both errors : to make the diagnoses as brief as possible, and yet clear, by seizing on such characters, in each case, as are truly distinc- tive and discriminative. Further to aid the student, I have given the characters in a regular and definite order, so that he may at a glance compare species with species, or genus with genus, in their several parts and organs. In this I have received little aid — I may say almost literally none — from my predecessors. The " History of British Zoophytes " VI PREFACE. by Dr. Johnston has hitherto been the EngUsh naturalist's only- guide to the study of these creatures ; and notwithstanding the value of this work in - many points, the almost utter worthless- ness of their specific characters has been often confessed. That excellent zoologist lived on a coast where the Anemones are feebly represented ; and hence his personal acquaintance with species was very small, or the result Avoidd doubtless have been different. The elaborate " Histoire Naturelle des Coralliaires " of M. Milne-Edwards is liable to the same objection. A work of immense research, laboiir, and patience, it bears evidence in every page of being the produce of the museum and the closet, not of the aquarium and the shore. With those species which possess no stony skeleton, the learned author evidently had no acquaint- ance, — or next to none ; — and hence he has merely reproduced the words of his authorities in all their vagueness ; while the distribution of the species into genera and families appears so full of manifest error to one personally familiar with the animals in a living state, that I have not attempted to follow his arrangement, I have been compelled, therefore, to draw up the characters of my subjects de novo ; and in doing so I have resorted to nature itself; I have studied the living animals. For the last eight years I have searched the most prolific parts of the British shores, — the coast of Dorset, South and ISTorth Devon, and South "Wales ; and have moreover, as the following pages show, had poured into my aquaria the productions of almost every other part of our coasts, — from the Channel Isles to the Shetlands. For these last I am indebted to the kindness of many zealous scientific friends, whose names appear in this volume, and to whom I here express my grateful obligation ; especially distin- guishing Mr. r. H. West of Leeds, and the Rev. W. Gregor of MacduflF, as pre-eminent in their contributions . The result is that seventy-five species find their places in these pages, five of which are merely indicated, leaving seventy good species, exclusive of the LucernariacUe. Of these twenty- PREFACE. Ml four oiily are described in Johnston, — the rest of his species being either spionyras or resting on insufficient evidence. Fiftj'-four British species have been examined by myself, perhaps a larger number than have come under the notice of any other naturalist ; by far the greater part in life and health ; and tliirty-four of these have been added to the British Fauna by myself. A new feature in works of this sort, which will strike the student, perhaps needs a word of explanation ; — I mean the dis- tinguisloing of the prominent varieties of each species by a diagnosis, and the assigning of a trivial name to each. Consider- ing the variability of many of the forms, I trust the convenience of this procedure will excuse the innovation. The analytical tables of the families, genera, and species, hitherto scarcely known in English zoological works, will, I think, be found useful ; nor will the attempt to tabulate the geographical distribution of the species be devoid of interest to the philosophic student. The plates must speak for themselves : they have been printed in colours by Mr. W. Dickes, who has spared no effort to make them, as nearly as possible, fac-similes of my original drawings, which were made from the life. Nearly two years have been occupied in the progressive publi- cation of the work, as it has been issued in bi-monthly parts. Advantages and disadvantages attend this mode of publication. Among the former may be reckoned that the information is brought down to the latest period, and that the successive parts stimulate the zeal and co-operation of fellow-labourers ; the book thus embodjing the knowledge of many, rather than of one. Among disadvantages must be put d()^vn, incongruities between the earlier and tlie later portions, statements made and opinions hazarded which are subsequently corrected, and omissions which are finally supplied. For these defects the author must cast himself on the kind consideration of his readers, who must be aware that no branch of science is at one stay even for a single month. viii PREFACE. My labour has been performed con amore ; I have looked forward to it for many years past ; and it is -with no small grati- fication that I see it completed. I send forth the result as one more tribute humbly offered to the glory of the Triune God, " who 'is wonderful in counsel, and excellent in working." P. H. GossB. Torquay, December, 1859. LIST OF PLATES. I. — 1. Actinoloba dianthus. 2. Sagartia bellis. 3. S troglodytes. 4, 5, 6. S. rosea. 7. S. venusta. 8, 9. S. sphyro- deta To face page 12 II — 1, 8. Sagartia nivea. 2, 3, 4. S. miuiata. 5. S. troglodytes. C. S. parasitica. 9, 10. S. ornata 42 III. — 1, 2. Sagartia troglodytes. 3. S. viduata. 4, 5. S. pallida. 6. S. pura. 7, 8 Adamsia palliata 106 IV. — 1. Tealia crassicornis. 2, 3. Bunodes gemmacea. 4. B. Ballii. 5, 6. B. thallia 190 V. — 1. Bolocera Tuedise. 2. Anthea cereus. 3. Aiptasia Couchii. 4. Sagartia coecinea. 5. S. troglodytes Front. VI. — 1 to 6. Actinia mesembryanthemum. 7. A. chiococca. 8. Sa- gartia chrysosplenium. 9. Anthea cereus. 10. Tealia digitata. 11. S. viduata 206 VII. — 1. Phellia gausapata. 2. P. murocincta. 3. Gregoria fenes- trata. 4. Bunodes coronata. 5, 6. Edwardsia carnea. 7. E. callimorpha. 8. Ceriautlius Lloydii. 9, 10. Hal- campa chrysanthellum. 11. H. microps 228 VIII. — Hormathia Margaritse. 2. Phellia Brodricii. 3. Peachia hastata. 4. P. undata. 5. Stomphia Churchiae. 6. Ily- anthus Mitchellii 234 IX.— 1 to 5. Corynactis viridis. 6. Bolocera eques. 7. Zoanthus sulcatus. 8. Z. Alderi. 9, 10. Z. Couchii. 11. Aure- liania augusta. 12. A. heterocera. 13. Capnea san- guinea 282 X LIST OF PLATES. X. — 1 . Lophohelia prolifera. 2. Peachia triphylla. 3. Sphenotro- chus Wrightii. 4. S. Macandrewanus. 5. Zoanthus Couchii. 6. Paracyathus Taxilianus. 7. P. pteropus. 8. P. Thulensis. 9. Hoplangia Durotrix. 10,11. Bala- nophyllia regia. 12, 13. Caryophyllia Smithii. To face p. 308 XI. — Anatomical details. 1. Ideal demi-section of a Sagartia. a. septum ; b. septal foramen ; c. stomacli ; d. liver ; e. ovarian mesentery ; /. ovary ; g. craspedal mesentery ; h. craspedum ; i. acontia. 2. Fragment of craspedum {S. bellis) -with its mesentery {magnified). 3. The same craspedum under pressure {more highly magnified). 4. Fragment of acontium {S. bellis). 5. Portion of column containing cinclides {A. dianthus). k. fully open ; I. slightly open ; m. closed. 6. Chambered cnida (Ca- ri/ci/>%ZZzrt) before discharge. 7. Chambered cnida (TVaKa) discharged, n. ecthoraeum ; o. strebla ; ^3. pterygia. 8. Chambered cnida discharging, showing the ecthorseum in process of evolving. (N.B. — The strebla and pterygia are here omitted, for the sake of greater clearness.) 9. Tangled cnida {Corynactis). 10. Spiral cnida {Tealia) discharging. 11, 12. Globate cnidse {S. parasitica). q. peribola 348 XII, — Magnified Figures. 1. Phellia picta. 2. Zoanthus sulcatus. 3. Edwardsia camea. 4. Caryophyllia (tentacle). 5. Zo- anthus Alderi. 6. Halcampa microps. 7. Gregoria fenestrata. 8. Phellia murocincta 358 INTRODUCTION. Though the following " History of the British Sea- anemones and Corals " is intended for general readers, it seems desirable that it should be accompanied by a brief rSsume of wliat is known concerning the anatomy and physiology of this order of animals. I have commenced the text of the work with a general description of the con- stituent parts of their bodies, in order to establish a determinate orismology for the class, and shall here assume that the reader is sufficiently familiar with the various organs, and the terms by which they are indicated. The Sea-anemones present a low grade of animal existence, and are commonly represented as exceedingly simple in structure. The term " Animal-flowers," by which they were known to the early observers, and which has been perpetuated in the Greek equivalent " Anthozoa," applied to the class by some modern naturalists, has been thought to express the fact, that a vegetable type of organization is scarcely less proper to them than an animal one. It is, however, to the accidental resemblance which these beautiful forms often bear to a highly-colom-ed and many-petaled flower, that the name owes its appropriate- ness, rather than to any close assimilation to the vegetable structure. The Sea-anemone is an indubitable animal, and its organization is more complex than is usually supposed. This will be seen as we proceed with the successive ex- amination of the organs.* * In all cases in which I do not adduce any other authority, the following statements may be considered as given on the authority of my own dissec- tions and observations. xn INTRODUCTION. 1. Tegumentary System. The skin is sufficiently distinct. After a few hours' maceration in fresh water {Sag. bellis), the epithelial and pigmental cells are easily removed with a hair-pencil, leaving the outer layer of muscular fibre bare. If the specimen be immersed in spirit for a day or two {A. dianthus), the integument may be separated in flakes, which, under the microscope, are seen to be composed of a multitude of short corrugated fibrill^e, set in no definite direction, interspersed with clear granules, pigment grains, and cnidjB. An examination of the living animal [diantlius, hellis, crassicorms, Hale. chrysantheJhim, Cor. viridis, &c.) shows that the skin is composed of three elements, though these cannot always be separated. A layer of epithelial ciliated cells forms the first tunic : these are constantly in process of being thrown off from the ti-ue skin, in the form of mucus ; but in some cases {Phellia, Edioardsia) they entangle foreign matters, and retain their cohesion as an investment more or less dense, and more or less firmly adherent to the skin. Below this is the true skin, of a more granular character, and carrying, imbedded in its thickness, a multitude of cnidte, whose discharging points are directed outwards. Intimately connected with this layer, but still lying sufficiently beneath it to be regarded as a distinct stratum, are the pigment-cells, which impart the colours to the animal. The tentacles of Aijytasia and Anthea (less conspicuously also of S. hellis) are lined with a dense layer of cells, forming to the naked eye a dark brown lining. Some peculiarities of these cells I have detailed (at page 167, infra) : it is probable that this layer may have some special function yet unrecognised. 2. Muscular System. In most species the muscular frame- work of the body is beautifully distinct, and the tissue is readily isolable. The column is a cylinder of muscular tissue, consisting of two layers, the outer composed of transverse, the inner of longitudinal, fibres. The trans- verse fibres are the more strongly marked : they average about '0001 inch in diameter, and are never striate. The cylinder which forms the column, is closed in most species by two extremities, which are flat, like the top and bottom of a tin canister : the former is the disk, the latter the base. Each of these is but a continuation of the same INTRODUCTION. XUl two layers of fibre that compose the column-wall, — the outer transverse fibres becoming concentrically circular; the inner longitudinal ones converging to, or towards, a centre. In general, the boundaries of these divisions are distinctly marked by an abrupt angular change of the direction of the inner fibres ; but in some species (Ilyan- THID^, Tiu'hinolia, &c.), the body tapers gradually to a point below, without any angular change of direction. The fibres of the inner layer meet at a central point in the base, except in those species which have a central foramen there ; but in the disk they sustain another change of direc- tion, bending abruptly down at right angles, so as to form an inclosure in the axis of the column, parallel to the outer wall — the fibres of the outer layer still coating them. This downward prolongation forms the stomach, which will be presently described. In T. crassicoi-nis the angle which is formed by the in- bending of the fibres to form the disk, is strengthened by a muscular cord, about half a line in thickness, consisting of annular fibres, and evidently acting as a sphincter : it is this band that forms the parapet. In Sagartia {bellis, miniata, nivea, &c.) the muscular tunic, in contraction, corrugates into a reticulate or honey- comb-like pattern, inclosing shallow cells of much regu- larity. It is, I think, these inclosed areas, any one of which may be considered as a cell, with perpendicular walls of muscular tissue, that constitute the sucking warts, by means of which minute fragments of shell or gravel are grasped, and retained with considerable force. If this exposition is correct, all of the corrugated cells are capable of becoming suckers at the will of the animal ; but, in fact, only a few are so used at a time. The cells {nivea, miniata) are about '014 inch in depth and longitudinal diameter, while their transverse diameter may average about *084 inch. It is the outer layer of muscles that constitutes these corrugations. The sucking warts in the Bunodidce, are of similar character ; but here the elevation of the muscular tunic is more permanent, and the walls of the individual cells are thicker, and are incurved towards each other. To the muscular system belong the Septa. These are thin plates of muscular tissue, comprising the two layers of transverse and longitudinal fibres, doubled on each other, XIV INTRODUCTION. and stretching vertically through the cavity inclosed by the column. Each principal septum (Plate XI. fig. 1, a), in any of the normal species, is inserted, by its outer edge, into the column-wall throughout its entire height ; by its lower edge, into the base, from the wall to the centre ; by its upper edge, into the disk, from the margin to the mouth ; and, by its inner edge, into the stomach, from the lip, almost to the free bottom of that viscus. From thence the inner edge recedes with an arching outline, and is free, until it is gradually merged in the lower edge at the centre of the base. Between these primary septa, others are developed in succession, partitioning off the imperfect chambers thus formed. But the septa of each successive cycle, while still inserted in the column-wall throughout, spring from the stomach at higher and higher points, and terminate at points more and more remote from the centre of the base. The number of septa depends, to a certain limit, on the age of the individual, but in Peachia it never exceeds twelve, and in Halcampa niicrops, eight. In Peachia, the tissue of the septa is very dense, and still more so in T. crassicornis, where it assumes a firmness almost cartilaginous, and a decided blue colour. The muscular tissue of the disk protrudes in the form of hollow cones, which are the tentacles : each of these springs from an interseptal chamber, and hence their deve- lopment is in cycles corresponding to that of the septa. The fibres which compose their walls are very delicate. 3. Nervous and Sensory System. I have been as unsuc- cessful as my predecessors, in my search for nervous threads or ganglia ; still, I have little doubt that such exist. I should expect their presence in the form of a ring, siu*- rounding the mouth, perhaps with a pair of ganglia at the gonidial tubercles, distributing threads to the tentacles. I have never observed any trace of auditory vesicles or otolithes, nor any organs that I could regard as eyes ; not even in the rudimentary form of those aggregations of pig- ment-cells, that occur on the margin of the Naked-eyed Medusae. A delicate sense of touch certainly exists, dis- tributed over the entire surface, but specially localized in the lips and the tentacles. The occasional elongation of one or more of these latter organs, and their employment (as described at pp. 34 — 36, infra), indicate the existence of an active tactile faculty, and not merely of passive INTRODUCTION. XV irritability. The tips of the tentacles are bristled with the minute points, called by Dr. T. S. Wright j':)a7poce7s,* which he considers as delicate tactile organs. These are specially conspicuous on the globose heads of the tentacles of Corpmctis and Caryophyllia. I am not sure Avhether I ought to regard, as an organ of taste, the surface of the lower part of the stomach, which in T. crassicornis I find covered with innumerable papilla, not quite uniform in size or shape, some being more pointed, others more round, and averaging about 0003 inch in diameter. 4. Digestive System. This is very simple, consisting essentially of a short tube descending from the centre of the disk, with an open extremity hanging loose in the body-cavity (Plate Xl. fig. 1, c). I have already observed that the inner edges of the septa are inserted into its outer wall, and these maintain it in place, while by their trans- verse contraction they can draw asunder its surfaces, and by their longitudinal contraction they can either lengthen or shorten it. The stomach-wall itself, however, is muscular ; possessing at least the layer of transverse fibres, though I nave not quite satisfied myself of the presence of the longi- tudinal layer. The form of the stomach is not that of a cylinder, but of a flattened sac, or of a pillow-case unsewed at both ends. This form may be well seen in pellucid specimens of A. dianthus, and in the smaller iLYANTHlDiE, and it may be examined by dissection in others. The excessive contrac- tion of the parts, and the copious excretion of mucus, do, however, present great obstacles to satisfactory demonstra- tions under the scalpel. I have therefore resorted to accessory means. A specimen of 2\ crassicornis fully expanded I treated with laudanum, drop by drop. It immediately expelled the water contained in the tentacles, causing these organs to shrink and shrivel, but not re- tracting them. The mouth, which had been pursed together, began slowly to open, and dilated greatly, almost to the concealment of the tentacles, the summit of the now flattened animal being almost wholly occupied by the gaping orifice. An excellent opportunity was thus afforded for examining the structure of the stomach, which was revealed Avithout the excretion of mucus. The languor, too, induced by the narcotic, allowed the parts to be freely • Seo Edin. New Phil. Jouru., April, 1857. XVI INTRODUCTION. touched with instruments without much effort at con- traction. The gular tube is remarkably corrugated longitudinally, the folds being so full, that a transverse section would present a series of figures 8. In the present state of con- traction there were horizontal corrugations also. At a short distance below the mouth the stomach ends abruptly, the edge, thin and delicate, hanging freely like a much folded curtain into the cavity. At each angle of this flattened sac the gonidial groove was conspicuous from top to bottom, inclosed by two slender columns of the firm cartilage-like muscle. The diameter of the digestive tube is, when at rest, not greater than that of the mouth ; indeed, the walls are in contact ; nor, so far as my observation extends, are they ever separated except for the reception of food. It has been customary to represent the stomach as a sac pierced at the bottom " by one or more valvular openings which communicate with the cavity of the body."* But the case is as I have stated it : the free folded membrane hangs perpendicularly ; nor is there any thickening of the edge, nor any structure which at all resembles a sphincter. In tall specimens, I have observed, through the semi- transparent integuments, food pass into the stomach, and have marked that the morsel is invariably retained, never passing through to the general cavity ; but I am persuaded that this is effected by the common contractility of the walls, and not by a sphincter. When morsels of food, such as fragments of butchers' meat, are swallowed by Anemones, they are retained for some hours, and then vomited ; and because little change has passed upon the solid parts it has been rashly concluded that no process of digestion takes place in these animals. On this foolish hypothesis it is difficult to see why food should be swallowed at all, or what need the animal has of mouth or stomach. Their ordinary food, however, is not mammalian muscle, but the far softer and more fluid flesh ot Crustacea^ MoUusca, and Annelida. Nothing is more common than to find large specimens of A. mesembryan- themum or T. crassicornis discharge, soon after their capture, * Siebold's Comp. Anat. § 37. " The stomach with its circular aperture at tho oase " (Teale). Johnston, indeed, denies it any aperture at all : — " There is no — other visible exit from the stomach than the mouth." INTRODUCTION. xvii tlie shell of a crab, or a limpet, from which the entire flesh has Leen removed and replaced by a tenacious glaire. No doubt the fii-st part of the process consists largely of ma- ceration, and continued pressm-e, by means of which the juices of the food are extracted. The nutritive matters thus obtained are then subjected to the action of the bile. No anatomist, I believe, has as yet attributed a liver to these animals, but I have little doubt that such is the character of a structure which I am about to describe. In diantlius, crassicornis, Peachia undata, and others, the stomach-wall is lined on the interior side of its upper portion (the side, I mean, which is within the interseptal chambers) with a thick highly-coloured sub- stance. In the first two named this is yellow or orange, in the last salmon-red. This lining is {dianthus) about half a line in thickness, of a pulpy tissue, an-anged in irregular lobules, covered with a ciliated epithelium (Plate XI. fig. 1, d). On being crushed down, the pulp is found to be composed of a nearly uniform mass of yellow fat-cells, the largest of which are about '0003 inch in diameter, and the smallest immeasurable points. Cnidse occur numerously in the true stomach-wall, but none in this lining-coat. I am justified, then, in presuming this organ, from its colour, form, position, and structure, to be a liver* In Aiptasia I find what I think an analogous structure, but with a slightly varied position. The septa, instead of being inserted into the stomach-wall from the point where they spring off to the summit, recede from it at their u])per part, where their edges carry rounded pulpy lobes, which under pressure consist of a clear tenacious sarcode, carrying a moderate number of broAvn pigment-cells. The sarcode is composed of globose cells, averaging '0005 inch in diameter, each containing more or fewer oil-globules, * As an example of the need of caiition in such observations as these, I may be pardoned for mentioning the following circumstance : — While viewing the surface of the pulpy tissue above described under a good reflected light with a power of 133 diameters, I saw it forming irregular lobes, with deep narrow sinuous depressions. Over the surface, and chiefly following the lines of the sinuosities, I noticed meandering white lines, like very slender branching threads. The thought that I had dis- coyered veritable nerves immediately occurred to me ; but turning the mirror of the microscope to test the observation with a diflerent angle of the light, I found I had been looking at merely the li'jlit rciected from the eilge of the smooth lobules I h XVlll INTRODUCTTOX. averaging '0005 incli, but some attaining '0003. These are very numerons in the mass. 5. Circulatory and Besjpiratory systems. These exist in so simple a condition that we can scarcely separate them in our investigations. Dr. Williams has distinguished by the term Ghylaqueous fluid, " that fluid which occupies the gastric and perigastric cavities of all animals below the Annelida."* It is far less vitalized than true blood, but still it is not mere water, being impregnated with organized corpuscles and slightly albuminized. In the animals of the class before us there is no blood, and no vascular system, but the cavity of the body is ample, and is copiously occupied by a transparent fluid, which has by some been mistaken for sea-water. I have, however, proved by ex- periments, recorded elsewhere,t on numerous species, that this fluid is copiously provided with organic corpuscles, circular or ovate disks, granulose in character, of a clear yellow colour, varying from '0001 to '0008 inch in diameter, the larger ones inclosing oil-globules. The fluid coagulates on the addition of nitric acid, showing that it holds albu- men in solution. It would appear that the action of the stomach is confined to the solution and extraction of albumen and oil, which are carried with sea-water into the general cavity, the com- pound being a chylaqueous fluid ; and that it is in the upper part of the interseptal chambers that it is acted upon by the biliary secretion. For the free circulation of this fluid to every part of the interior, the whole body is lined with a delicate, strongly ciliated epithelium. The ciliary current is upward : when a pellucid dianthus has its fosse much exposed, it is quite easy to see the current driving up from every part of tlic interior along the whole inner wall, and passing into the tentacles, up which the atoms are then hurled. I believe there is no change in the set of this cun-ent : for though atoms are seen, especially at the bottom of the tentacles, occasionally to pass annularly or diagonally ; and thougli of course there must be a return of the fluid driven up- ward — for there does not appear, with the closest watching, a trace of exit at the tip of the tentacles; and though, indeed, atoms are seen, though rarely, to pass downward, — I think these irregular and retrograde movements are * Phil. Trans. 1852. f Annals of Nat. Hist.; March, 1853. INTRODUCTION. xix merely the mechanical result of the impact of tlie ciliary current on the closed tip. If so, the current runs upward on the whole inner surface of the walls, and then returns down the centre. And this, I am persuaded, is the case. That the tentacles are perforated at the tip is, however, certain : but it is closed or opened at the will of the animal, the outer annular layer of fibres acting as a sphincter. Nothing is more common than to see a fully expanded indi- vidual of T. crass icornt's, when suddenly alarmed, eject slender streams of water from the tips of its tentacles ; and I have seen an instance in which, the animal being but just covered with water, the jets were projected to a height of three inches above the surface. In S. bellis, after macera- tion, the slightest pressure on these organs causes the pigment to ooze out at the tij). In many that I so treated, not one allowed it to escape at the side ; nor in any case was there the least appearance of resistance, suddenly yielding as if by a rupture ; nor did the aperture in any case enlarge, nor was it in any case otherwise than at the precise extremity. From which circumstances 1 infer a natural foramen there ; and tliink that it exists in all species, except those (as Corynactis and Caryopliyllia) which have a globose appendage at the extremity of the tentacle. The circulation of the nutrient fluid is aided by a curious apparatus of foramina, of which I have met with no description. It is difficult to find them in dissection, for they appear to close with contraction ; but in heJUs, on making a transverse section just below the disk, I have found a small round aperture in each primary and secon- dary septum, througli wliicli I could thrust a probe without laceration. It is during life, however, that, under certain favourable circumstances (for they cannot at all times be detected), they must be studied. In dianthus, when very much distended, I have seen the principal septa perforated with a large circular foramen in the midst of their broadest part, resembling iron girders supporting a floor, excavated for lightness (Plate XI. fig. 1, h). In Anthea cereiis they are conspicuous ; * but I have been unable to detect them in T. crasslcornis or in Corynactis. * The most satisfactory observations I have made on these perforations \yere on a specimen of Anthea ccreus, var. sulphurca. Being very much expanded, and distended to translucency, the base adherent to the side of a glass tank, the colunm greatly exceeding the base, the window opposite, b 2 XX INTRODUCTION. That the function of Respiration should be widely dif- fused and very simple in these animals will follow from what has been said. The chylaqueous fluid, consisting largely of sea-water admitted freely from without, is itself a reservoir of oxygen, and thus its organized elements are perpetually aerated. We have already seen how the ciliary currents within maintain a constant succession of the bathing fluid upon every part ; and there can be no doubt that some mode of exit is provided for the eftete water. What this is, however, I know not. In Ceriantlms., which has a posterior foramen to the body-cavity, I have seen the water forcibly ejected from this aperture (see infra, p. 272) ; I have also marked a sudden jet cVeau from the disk (pro- bably from the mouth, but of this I was not sure) of T. crassicorm's, which shot up some mucous shreds with force to the surface, a height of some five inches. Perhaps these expulsions, and those from the tentacle-tips already alluded to, may be set down as so many expirations (per- haps periodical) of deoxygenated water. Ancillary to respiration, as renewing the water in the vicinity of the animal, is the ciliation of the external sur- face. This is strong and uniform on the tentacles, but I have never been able satisfactorily to trace it on the column. It is first visible at the margin, flowing in an even current up the tentacle, on ever}'- side, from the foot to the I saw with a kns, for an hour together, with the utmost distiuctncss, a small circular (oval in perspective) foramen in each septum. That is, I saw them in a dozen or more successive septa, without iuterruptiou. The diameter of the foramen was about the same as that of a tentacle near the tip, in its ordinary state of extension. That the foramina were in films whose surfaces were coincident with the line of vision, and not transverse to it, I proved, by moving my eye to the right and left, by which the foramen became more and more round, or moi'e and more linear, the line in the latter case being that of the axis of the column. Hence they must have been in films running from the column-wall towards the axis perpen- dicularly, as regai'ds the position of the animal; — conditions which agree with the septa, and with them only. The next day, with a very favourable sight, I traced the foramina conse- cutively for half the circumference of the animal. In this space there were 49 septa (perhaps one more than the half, for I bisected only wiih my eye) ; and I found that the foramina are pierced through those which are entire (by far the greater number), but that the sei-ies is interrupted irre- gularly by those imperfect se])ta, which span the cavity like an arch. The latter were invariably two together, differing much in the height of the arch, and graduated in this respect. The detail of the uumbei's of the consecutive septa^ in the half-animal, stands thus ; — Perforate— 13 . 2 . 10 . 4 . 2 . 2 . 2 . Imperforate— . 2.2 . 2.2.2.2.2 INTRODUCTION. XXI tip, wliere it passes off. BalanophylUa presents an excep- tion to this rule, which I have found to hold good in all other examined cases. In tliis instance, the tentacles, which arc densely clothed with palpocils, seem to me destitute of external cilia, while all the scarlet parts are furnished with these latter. The ciliary currents flow doum the sides of the column, and up the conical mouth from the whole circumference of the disk. 6. Reproductive System. The Actinahia increase by spontaneous fission, by gemmation, and by generation. Fission takes place either by a longitudinal division of the entire animal from above downwards, or by separation of small fragments from the edge of the base, which soon develop themselves into minute and apparently young indi- viduals. The former mode appears to be not uncommon with Anthea cereus (see infra, p. 1G9) ; and an imperfect form of the same produces double-disked individuals of Actinoloha and Actinia. The latter mode is common with several of the Sagartiadcp. (see pp. 19, 66, 86, 110). Gemmation, — the production of buds from the parent individual — occurs largely in the order before us, but prin- cipally in those which have a stony skeleton. According to Mr. Dana, whose classification I have followed, the Astrj2- ACEA always bud from the disk, the Caryophylliacea invariably from the side or base. But a specimen of A.diantlius has come into ray possession, — through the kindness of L. Winterbotham, Esq. of Cheltenham, — which has two young individuals projecting one from each side, at about mid-height, — an indubitable example of lateral gemmation. The animal has continued in the same condi- tion for nearly a year, with no tendency to sejDarate its progeny. Generation is of course the normal mode of increase of the race. The sexes are sometimes united in one indi- vidual (>S'. trorjlodytes, p. 100) ; sometimes separate {Stom- phia ChurchicB, p. 225). The testes and the ovaries cannot be distinguished from each other by a cursory examination; each consists of a pulpy mass, usually of an orange or pale salmon-colour, attached to the free edges of the septa. The peritoneal membrane which invests each side of the septum is produced beyond the muscular layers in the form of a mesentery of two films in contact (Plate XI. fig. 1, e). At some distance from the edge of the septum, the films XXU INTRODUCTION. separate, and inclose the reproductive organ (/), uniting again beyond it into a second mesentery [g), which is bounded by the craspedum iji) presently to be described. Both mesenteries are full and plaited, especially the eras- pedal one. The spermatic fluid is discharged in a turbid cloud through the mouth, and is diffused through the surrounding- water (pp. 99, 100). The ova are also discharged through the mouth, or through the gonidial grooves (pp. 97, 98, 99). The development of the tgg is into an infusorium-like germ, differing in shape in different species, but always covered with vibratile cilia, and freely locomotive. Exam- ples of the occurrence of these will be found infra (jmssim). and many highly interesting details have been recorded in the magniticent works of Sir J. G. Dalyell. The manner in which the development of the Anemone proceeds has been illustrated by Dr. Cobbold;* a depression in the surface of the globose embryo becomes the general cavity ; the edges then become incurved and descend into the cavity, forming the stomach ; septa spring from the inner wall, beginning fr-om the summit and extending downwards, and tentacles bud from around the mouth. Eggs, germs, or fully formed young, are discharged indifferently through the mouth : in the latter two cases the embryos have passed their earlier developments within the general cavity. 7. Teliferous System. In common with some nearly allied forms the ACTINARIA are furnished with a system of armatm-e of most extraordinary character. It is compara- tively a recent discovery that their tissues contain exces- sively minute bodies, in the form of oblong or oval transpa- rent vesicles, Avhich have the power of shooting out a long- thread of extensive tenuity. Wagner first drew the atten- tion of jjhysiologists to these organ.^, though he mistook their functions for that of spermatozoa ; an error which was participated by Dr. Wyman, in his observations recorded in Dana's magnificent work on Zoophytes. Their true cha- racter has, however, been sufficiently established by many observers, including AA^agner, Erdl, Qualrefagcs, Kolliker, Agassiz, and myself. These bodies I have called cnidce, or thread-cells. The cnidce, in the Actinoid Zoophytes, are not confined to one organ or set of organs. They are found in various * Annals Nut. Hist, for Feb. 1853. • • • INTRODUCTION. XXIU tissues, and in different regions of the body. They abound in the walls of the tentacles, in the marginal spherules (of Actinia proper), in the corrugated integument that sur- rounds tlie mouth, in the walls of the stomach, and in the epidermic mucus that is thrown off from these last-named parts on the stimulus of irritation. But there are certain special organs in which they are crowded to an extraor- dinary degree, and which, so far as I know, have no other function than that of being magazines of the en idee. These organs are of two kinds, which I have designated respec- tively as craspeda, and acontia. The Craspedei. The peritoneal membrane of the septa, having formed, by the contact of its two laminae, a kind of mesentery, separates again to inclose the ovary ; again unites into a second mesentery, the edge of which is greatly puckered, and thickened in the form of a cylindrical cord, closely resembling the bolt-rope of a ship's sails, or still more the cording in the hem of a flounced garment. This marginal cord, bound throughout its length to the ovary, or to the septum, by a mesentery, I call the Craspedum (Plate XI. fig. 2). So far as my examinations have gone, the craspeela are found in all Actinaria, and for the most part in great profusion. In T, crassicornis, for instance, they constitute an inextricable tangle of white frilled cords, seen every- where below and behind the stomach, and protruding- through every wound of the integuments. The thickness of the cord does not, as has been stated, " increase from above downward." Nor does it "terminate in the coats of the stomach :" if we gradually cut away the stomach, piece- meal, until tlie free edge has disappeared, we still find the craspeda bordering the mesenteries of the sejyta, until the latter are lost at the point of their convergence in the centre of the floor of the visceral cavity. The craspedum, under pressure, displays the following elements. (1.) A clear, colourless, highly refractile sar- code, which, under extreme pressure, has a tendency to draw out into strings, and long-tailed drops, like a thick oil on a wetted surface. (2.) Minute scattered granules, very irregular in shape. (3.) ^Mulberry-like aggregations of granules, of a clear yellow hue, compactly built together, and firm, which have the appearance of being inclosed in a definite cell-wall. These arc generally ovate, but are some- XXIV INTRODUCTION. what irregular iu form. (4.) Cnidge, in greater or less abundance, according to the species. As the craspedum flattens under pressure, these are crowded at the edges, and are seen to be arranged, more or less distinctly, side by side ; their long axes set at right angles to the axis of the craspedum, and their emitting extremities either close to its edge, or projecting from it. The more dense their aggrega- tion, the more definitely is this arrangement maintained; doubtless because displacement of their original position is more readily effected by the flattening action of the com- pressorium, when the cnidee are more loosely scattered in the fluid sarcode. The peritoneal membrane which invests the whole is richly ciliated on its entire surface. (Plate XI. fig. 3.) The Acontia. Certain species of the Zoophytes under consideration have the faculty of shooting forth from the mouth, as well as from minute orifices scattered over the surface of the body, slender flexible filaments^ usually of an opaque white hue, but sometimes, as in Adamsia palUata, of a brilliant lilac tint. In some instances, as in Sagarfia p>arasi'tica, S.minmf a a.nd Adamsia jJaUiata, these threads are protruded in great profusion, coiled up in irregular spirals, and forming tangled masses that resemble bundles of sewing cotton. It appears to be a means of defence ; and any of the species just mentioned may readily be excited to display these weapons by a slight irritation of the surface of the body. The slightest touch is usually a sufficient stimulus to the extension, which will often continue to proceed for some time, the filaments shooting forth from various points with great force and rapidity. They have a strongly adhesive power, which, however, is not dependent on any superficial viscosity, but on the projectile power of the contained cnidee, of which I shall presently speak. If we carefully watch one of these threads, we shall perceive that after a time it is gradually withdrawn again into the body, by the orifice at which it was protruded. In the case of S. 2^a^'asitica, a large species, these filaments, which I designate by the term acontia, sometimes extend six inches from the body, in a straight line. Yet in a few minutes the whole has disappeared. It is gradually cor- rugated into small irregular coils, at the end which is attached to the animal ; and these little coils arc, one after INTKODUCTION. XXV another, sucked in, as it were, through an imperceptible orifice. Acontia are less universal than craspeda, for ■whereas the latter arc always present^ so far as I know, in this order, the foiTner are found only in the Sagartiacla, and perhaps in the Bunodidee. In Sagartia hellis they spring from the mesenteries that carry the crasjjeda ; generally two acontia from each mesentery, and most frequently in pairs. Their point of insertion may be anywhere in the length of the mesentery, great irregularity prevailing in this respect. Though at first it seems a solid cylinder, the acontium is really a flat narrow ribbon, with involute and approximate edges, which can at pleasure be brought into contact, and thus constitute a tube (Plate XI. fig. 4). Like the ci'asjyedum, of which it seems to be a form modified for a special use, its surface is richly ciliated ; and the ciliary cm-rents not only hurl along whatever floating atoms chance to approach the surface, but cause the detached fi-agments themselves to wheel round and round, and to swim away through the water. Though there is not the slightest trace of fibrillte in the structure of the acontium, even under a power of 800 diameters, the clear sarcode, of which its basis is composed, is endowed with a very evident contractility. Under pressure, the edges of the flattened acontium appear to be thronged with clear viscous globules, over- lapping one another, and protruding ; indicating one or more layers of superficial cells, doubtless forming the peritoneal epithelium. As the pressure is increased, these ooze out as long pear-shaped drops, and immediately assume a perfectly globular form, with a high refractive power. Below these is packed a dense crowd of cnidoe, arranged transversely. The Cinclides. The emission of the acontia is provided for by the existence of special orifices, which I term Cinclides. The integument of the body, in the Sagartia, is perforated by minute foramina, having a resemblance in appearance to the spiracida of insects. They occur in the interseptal spaces, opening a communication between these and the external water. The appearance of the cinclides may be compared to that which would be presented by the lids of the human XXVI INTRODUCTION. eye, supposing these to be reversed ; the convexity being invi^ards. Each is an oval depression, with a transverse slit across the middle. When closed, this slit may some- times be discerned merely as a dark line (Plate XI. fig. 5, m), the optical expression of the contact of the two edges ; but, when slightly opened [l), a brilliant line of light allows the passage of the rays from the lamp to the beholder. From this condition the lids may separate in various degrees, until they are retracted to the margin of the oval pit, and the whole orifice is open [k). The dimensions of the cinclides vary not only with the species^ and probably also with the size of the individual, but with the state of the muscular contraction of the integu- ments, and, as I think, with the pleasure of the animal. In a small specimen of S. dianthiis, I found the width of a cinclis, measured transversely, o^sth of an inch ; but that of another, in the same animal, was more than twice as great, viz. TJbth of an inch. This was on the thickened marginal ring, or parapet, which in this species surrounds the tentacles, where the cinclides are larger than elsewhere. Watching a specimen of S. nivea under the microscope, I saw a cinclis begin to open, and gradually expand till it was almost circular in outline, and afstli of an inch in diameter. I slightly touched the animal, and it in an instant enlarged the aperture to ao^tli of an inch. In a specimen of 8. bcllis, less than half grown, I found the cinclides numerous, and sufficiently easy of detection, but rather less defined than in dianthiis or nivea. They occurred at about every fourth intersept, three intersepts being blind for each perforate one, and about three or four in linear series, but not quite regularly, in either of these respects. In this case they were about oVth of an incli in transverse diameter, a large size, — and I measured one which was even -s^i\\ of an inch. By bringing the animal before the window, I could discern the light through the tiny orifices with my naked eye. From several good observations, and especially from one on a cinclis, widely opened, that happened to be close to the edge of the parapet of a dianthiis, I perceived that the passage is not absolutely open, at least in ordinary, but that an excessively thin film lies across it. By delicate focusing, I have detected repeatedly, in different degrees of expansion, and even at the widest, the granulations of a INTRODUCTION. XXVU membrane of excessive tenuity, and one or two scattered cnidoi, across the bright interval. On another occasion, in the case of a cindis at the edge of the parapet — a position singuhirly favourable for observation — I saw tliat this subtle film was gradually pushed out until it assumed the form of a hemispherical bladder, in which state it remained as long as I looked at it. At the same time the outline of the cinch's itself was sharp and clear, when brought into focus farther in. The film, whatever it be, is superficial, and does not appear to be a portion of the integument proper. I take it to be a film of mucus (composed of deorganized epithelial cells), which is constantly in process of being sloughed from all the superficial tissues in this tribe of animals, and which continues tenaciously to invest their bodies, until, corrugated by the successive contractions of the animals, it is washed away by the motions of the waves. As, however, one film is no sooner removed than another commences to form, one would always expect external pores so minute as these to be veiled by a mucus- film in seasons of rest. That the cincJides are the special orifices through which those missile weapons, the aconh'a, are shot and recovered, rests not merely on the probability that arises from the coexistence of the two series of facts I have above recorded, but upon actual observation. In a rather large S. dianthus, somewhat distended, placed in a glass vessel between my eye and the sun, I saw, with great dis- tinctness, by the aid of a pocket-lens, many acontia protruded from the cinclides, and many more of the latter widely open. The cicontia, in some cases, did not so accurately fill the orifice but that a line of bright light (or of darkness, according as the sun was exactly opposite or not) was seen, partially bordering the issue of the thread, while the thickened rim of the cinclis surrounded all. The appearance of the orifices whence the acontia issued was that of a tubercle or wart, and the same appear- ance I have repeatedly marked in examples observed on the stage of the microscope ; namely, that of a perforate pimple, or short columnar tube. This was clearly manifest, when the animal, slowly swaying to and fro, brought the sides of the cinclis into partial perspective. On another occasion I witnessed the actual issue of the acontia from the cinclides. I was watching, under a low XXVm INTRODUCTION. power of the microscope, a specimen of S. nwea, wliile, by touching its body rudely, 1 provoked it to emit its missile filaments. Presently they burst out with force, not all at once, but some here and there, then more, and yet more, on the repeated contractions of the corrugating walls of the body. Occasionally the free extremity of a filament would appear, but more frequently the bight of a hent one, and very often I saw two, and even three, issue from the same cinclis. The successive contractions of the animal under irritation, caused the acontia already protruded to lengthen with each fresh impetus, the bights still streaming out in long loops, till perhaps the free end would be liberated, and it would be a loop no longer ; and sometimes a new thread would shoot from a cinclis, whence one or two long ones were stretching already ; while, as often, the new- comers would force open new cinclides for themselves. The suddenness and explosive force with which they burst out, appeared to indicate a resistance which was at length overcome : — perhaps — in part at least — due to the epithelial film above mentioned, or to an actual epiderm, which, though often ruptured, has ever, with the aptitude to heal common to these lowly structm'cs, the power of quickly uniting again. It appeared to me manifest, from this and other similar observations, that no such arrangement exists as that whicli I had fancied ; — that a definite cinclis is assigned to a definite acontium, or pair of acontia, and that the extremity of the latter is guided to the former, with unerring accu- racy, by some internal meclianism, whenever the exercise of the defensive faculty is desired. What I judge to be the true state of the case is as follows : The acontia, fastened by one end to the septa or their mesenteries, lie, while at rest, irregularly coiled up along the narrow interseptal fossae. The outer walls of these fosste are pierced with the cinclides. When the animal is irritated, it immediately contracts ; the water contained in the visceral cavity finds vent at these natm'al orifices, and the forcible currents carry with them the acontia, each through that cinclis which happens to lie nearest to it. The frequency with which a loop is forced out shows that the issue is the result of a merely mechanical action; which is, however, not the less worthy of our admiration because of the simplicity of the contrivance, nor the less manifestly the result of Divine INTRODUCTION. XXIX wisdom working to a given end by perfectly adequate means. The ejected acontia, loaded with their deadly cnida3 in every part of their length, carry abroad their fatal powers not the less surely, than if each had been provided with a proper tube leading from its free extremity to the nearest cinch's. The Cnida. — I come now to describe those minute but potent organs which constitute the object of all the mecha- nism above described. Four distinct forms of these cap- sules have occurred to my investigations ; and these I shall treat of in turn. (1.) Chambered Cniclce {Cnidce camerata). This is perhaps the most generally distributed form, as it is manifestly the most elaborately armed. It may be well examined in CaryophylUa Smithii. The globular heads of the tentacles seem, under pressure, to be literally com- posed of these capsules, the ends of which project side by side, as close as they can be packed, one against another. The form of these is long and slender, almost linear. The crasjyeda are also similarly studded with cnidce, which are, however, of longer dimensions, and of fuller form. As I have seen no chambered cnida, in any species, so large as these, I shall take them as a standard for description, alluding to those of other species only when they differ from these. They are perfectly transparent, colourless vesicles, of a lengthened ovate figure, considerably larger at one end than at the other (Plate XI. fig. 6). One of average dimensions measures in length "004 inch, and in greatest diameter •0005. In the larger (the anterior) moiety, is seen, passing longitudinally through its centre, a slender chamber, fusiform or lozenge-form, about '00015 inch in its greatest transverse diameter, and tapering to a point at each extremity. The anterior point merges into the walls of the cnidce at its extremity, while the posterior end, after having become attenuated like the anterior, dilates with a funnel-shaped mouth, in which the eye can clearly see a double-infolding of the chamber-wall. After this double fold the structure proceeds as a very slender cord, Avhich, passing back towards the anterior end of the capsule, Avinds loosely round and round the chamber, with some regularity at first, but becoming involved in contortions more and more intricate as it fills up the posterior moiety of the cavity. The fusiform chamber appears to be marked on XXX INTEODCCTIOX. its inner surface with regularly recurring seiTations, wliicli are the optical expression of that peculiar armature to be described presently. Under the stimulus of pressure, when subjected to micro- scopical examination, and doubtless under nervous stimulus, subject to the control of the will, during the natural exer- cise of the animal's functions, the cnidcs suddenly emit their contents with great force, in a regular and prescribed manner. It must not be supposed, however, that the pres- sure spoken of is the immediate mechanical cause of the emission : the contact of the glass-plates of the compres- sorium is never so absolute as to exert the least direct force upon the walls of the capsule itself; but the disturbance produced by the compression of the sm-rounding tissues excites an irritability which evidently resides in a very high degTce in the interior of the en idee ; and the pro- jection of the contents is the result of a vital force. In general the eye can scarcely, or not at all, follow the lightning-like rapidity with which the chamber and its twining thread are shot forth from the larger end of the cnida. But sometimes impediments delay the emission, or allow it to proceed only in a fitful manner, a minute portion at a time ; and sometimes, from the resistance of friction (as against the glass-plate of the compressorium), the elongation of the thread proceeds evenly, but so slowly as to be watched with the utmost ease ; and sometimes the process, which has reached a certain point normally, be- comes, from some cause, arrested, and the contents of the cell remain permanently fixed in a transition state. Thus a long continued course of patient observation is pretty sure to present some fortuitous combinations, and abnormal conditions, which greatly elucidate phenomena that nor- mally seemed to defy investigation. In watching any particular cnida, the moment of its emission may be predicted Avith tolerable accuracy by the protrusion of a nipple -shaped wart from the anterior extremity. This is the base of the thread. The process of its protrusion is often slow and gradual, until it has attained a length about equal to twice its own diameter, when it suddenly yields, and the contents of the cnida dart ibrth. At this instant I have, in many instances, heard a listinct crack or crepitation, in the examination of cnidce both of this species and of S. parasitica. INTRODUCTION. XXXI When fullj expellccly the thread or wire, Avliich I disthi- guish by the term ecthoramm (Plate XI. fig. 7, n), is often twenty, thirty, or even forty times the length of the cnida ; thougii, in some species, as in most of the SagarticB, it frequently will not exceed one-and-a-half, or two times the length of the cnida. The ectJioraa, which arc discharged by chamhered cnidce, are invariably furnished with a peculiar armature. The basal portion, for a length equal to that of the cnida, or a little more, is distinctly swollen, but at the point indicated it becomes (often abruptly) attenuated, and runs on for the remainder of its length as an excessively slender wire of equal diameter throughout. In the short ecthorcea of Sagartia, the attenuated portion is obsolete. It is chiefly upon this ventricose basal portion that the elaborate armature is seen, which is so characteristic of these remarkable organs. For around its exterior wind one or more spiral thickened bands, varying in different species as to their number, the number of volutions made by each, and the angle which the spiral forms with the axis of the ecthorceum. The whole spiral, formed of these thickened bands, I designate the screw, or strehla (fig. 7,0). In the ecthorcea emitted by chamhered cnida from the craspeda of T. crassicornis, the screw is formed of a single band, having an inclination of 45° to the axis, and be- coming invisible when it has made seven volutions. In those from the same organ in ^S'. ^)«ras?V/ca we find a screw of two equidistant bands, each of which makes about six turns, — twelve in all, — having an inclination of 70° from the common axis. In those similarly placed in Garyojyhyllia, the strehla is composed of three Cfjuidistant bands, each of which makes about ten volutions — thirty in all — with an inclination of about 40° from the axis. In every case the spiral runs from the east towards the north, supposing the axis to point perpendicularly upwards. Sometimes, especially after having been expelled for some time, the wall of the ecthorauni becomes so attenu- ated as to be evanescent, Avhile the strehla is still distinctly visible. An inexperienced observer would be liable, under such circumstances, to suppose that the screw, when formed of a single band, as in T. crassicornis, is itself the wire ; an error into which I myself had formerly fallen. An XXxii INTRODUCTION. error of another kind I fell into, in supposing that the triple screw of the wire in C. Smitliii Avas a series of imbricate plates : the structure of the armature is tlie same in all cases (with the variations in detail that I have just indicated) ; and the structure is, I am now well assui-ed, a spiral thickened band, running round the wall of the ectliormim on its exterior surface. I have been able, when examining such large forms as those of Conjnacti's and CanjojjJiylUa, with a power of 750 diameters, to follow the course of the screw, as it alternately approached and receded from tlie eye, by altering the focus of the objective, so as to bring each part successively into the sphere of vision. These thickened spiral bands afford an insertion for a series of firm bristles, which appear to have a broad base and to taper to a point. Tlieir length I cannot determin- ately indicate, but I have traced it to an extent which considerably exceeds the diameter of the ecthorteum. These barbed bristles I denominate j;>fey^^ia. (See fig. 7,^j.) The number of i^terijgia appears to vary within slight limits. As well as I have been able to make out, there are but eight in a single volution of the one-banded strelJa in T. crass I'cornis ; while in the more complex screws of 8. parasitica, Cor. viridis, and Cai'y. Smitliii there appear to be twelve in each volution. The barbs, when they first appear, invariably project in a diagonal direction from the ecthoi-aum ; and sometimes they maintain this posture ; but more commonly, either in an instant, or slowly and gradually, they assume a reverted direction. From some delicate observations, made with a very good light, I have reason to conclude that the strehla, and even the jJtcfygi^i, are continued on the attenuated portion of the ectJiorceum, perhaps throughout its length. In Corynactis and Caryophyllia I have succeeded in tracing them up a considerable distance. In the latter I saw the continuation of all these bands, with their bristles; but the angle of inclination had become nearly twice as acute as before, being only 22° from the axis. The appearance of the attenuate portion, as also of the base of the ventricose part, is exactly that of a three-sided wire, twisted on itself ; the barbs projecting from the angles. (2.) Tangled Cnidce {Cnida glomifer(e). This form is very generally distributed, and is mingled with the former INTRODUCTION. XXxiii in the various tissues. In the genus Sagartia, however, it is by far the rarer form, while in Actinia and Antliea^ it seems to be the onlj one. The pretty little Corynactis viridis is the best species that I am acquainted with for studying this kind of cmdee. Their figure is near that of a perfect oval (Plate XT. fig. 9), but a little flattened in one aspect, about '004 inch in the longer, and "0015 in the shorter diameter. Tlieir size, therefore, makes them peculiarly suitable for observations on the structure and functions of these curious organs. AVithin the cavity is a thread {ecthoraum) of gi-eat length and tenuity, coiled up in some instances with an approach to regularity, but much more commonly in loose contor- tions, like an end of thread rudely rolled into a bundle with the fingers. The armature of this kind does not differ essentially from that already described. It is true, I have detected it only in Corynactis, where the short ectliorceum of the tangled cnida is sun-ounded throughout its length by a barbed strella of three bands. The barbs are visible under very favourable conditions for observation, even while the tangled wire remains enclosed in the cnida, but their optical expression is that of serratures of the walls, without the least appear- ance of a screw. This is the only species in which I have actually seen the armature of the ecthormim in this kind of cnida, but I infer its existence from analogy, in other species, where the conditions that can be recognised agree with those in this, though the excessive attenuation of the parts precludes actual observation of the structure in question. (3.) Spiral Cnidce [Cnidce cocldeatce). In a few species, as S. parasitica, T. crassicornis, and Cerianthus Lloydii, I have found very elongated fusiform cn?W« which seem composed of a slender cylindrical thread, coiled into a very close and regular spiral. In some cases the extremities are obtuse, but in others, as in T. crassicornis, the posterior extremity runs off to a finely attenuated point, the whole of the spire visible even to the last, the whole bearing no small resem- blance to a multispiral shell as one of the Ceritlnadce or Turritellada (Plate XI. fig. 10). The rctJioraum is dis- charged reluctantly from this form, and i have never seen an example in which the whole had been run off. So ex- cessively subtle are the walls of tlie cnida, that it was not c XXXIV INTRODUCTION. until after many observations that I detected them, in an example from T. crassicornis, which had discharged about half of the wire ; I have not seen the slightest sign of arma- ture on the cethorceum. So far as my investigations go, these spiral cni'dcs are confined to the walls of the tentacles, in which, however, they are the dominant form. (4.) Ohhate Cm'dce [cnidm glohatS'. miniata increases hy spontaneously sejiarated fragments of the base, like A. dianllius. He says, — " I have had two young ones of miniata produced from hits of the base detached fi-om a large specimen, Avhich had been fixed for a long time. It was anchored too firmly; so it cut its cable, and started for fresh quarters." According to the same careful observer, double individuals are not uncommon — a fact which points to a more decidedly fissiparous habit. The following note contains all the original information that I possess of the generative process. Examining a small specimen, about the middle of August, I found that it had given birth to several ova or gemmules. I had just removed it from a stone in one of my tanks, to whicli it had been attached many months. It had protruded the filaments copiously, and these were now partially retracted and coiled up, forming a white coat almost entirely in- vesting it. Under a one-inch objective, as these were twining and twisting, I saw among them several olive- yellow bodies, which seemed to have a motion independent of the filamental cuiTents ; and I isolated one. It was of a sub-nautiloid form, irregularly convolute, much like a Bursaria, about xc^tlis of an incli in long diameter, -j-(j\j-j;ths in lateral, and about ^ (fVoths in transverse ; of a dull clear olive, but granular, richly clothed everywhere with small cilia, by means of which it revolved freely in all directions. Others which I saw were much less than this one. Dr. T. S. Wright, however, seems to have witnessed the birth of perfectly-formed young. " Four young ones," he observes,* " produced by as many specimens of Actinia * Proc. Roy. Phys. Soc. THE SCAKLET-FUINGED ANEMONE. 47 ornata [=So(j. miniafa] in the last six months, were born with a double row of tentacles, the inner long, the outer short, and tinged with orange-red as in the adult." This beautiful species is easily reconciled to captivity, and is hardy. I have kept individuals for long periods. It expands freely. It ought to be placed on a worm-eaten piece of rock, but it does not require so deep a hole as hellis. The rich hue of the column, in some varieties, makes it desirable that this should be visible. The following list of localities marks the range of the species as at present known. I am not aware that it has been found out of Great Britain, Deal, Rev. II. H. Domhrain : Weymouth, P. II. G. : Torquay, P. II. G.: Dartmouth, E. W. II. IL : Plymouth, Dr. G. Dansey: Ilfracombe, W, A. Lloyd: Tenby, P.H. G.: j\[enai Strait, W. A. L.: Hilbre Island, E. L. W.: Arran, T. S. W. : Cumbrae, D. R. bellis. MINIATA. rosea. ornata. ichthystoma. ASTR^EACEA. SAOARTIADjE. THE ROSY ANEMONE. Sagartia rosea. Plate I. Figs. 4, 5, 6. Specific Character. Tentacles all rose-coloured ; the first row sometimes with a broad dusky bar above a narrow one at the foot. Actinia rosea. Gosse, Devonshire Coast, p. 90, pi. i. figs. 5, 6 (var. vinosa). pulcherrima. Jordan, Ann. N. H. Ser. 2, vol. xv. p. 86 (var. pidcherrima). vinosa. Holdsworth, Proc. Zool. Soc. 1856 (var. vinosa). Sagartia rosea. Gosse, Tenby, p. 365. Frontisp. (var. De- metana). GENERAL DESCRIPTION. Form. Base. Adherent to rocks : scarcely exceeding the column. Column. Minutely corrugated, studded on the upper half with suckers, to which fragments of gravel or shdl occasionally adhere. Substance fle.shy. Foim in expansion elongate, cylindrical. Disk. A shallow cup, the margins occasionally undulate. Radii strongly marked, and covered with transverse strife. Tentacles. Moderately numerous, in four or five rows, nearly equal in length (but this vai-ies according to the variety) ; often arching regulai'ly over the margin, but sometimes very small and forming a fine fringe. Mouth. Not raised on an obvious cone, often apparently four-lobed. Lip crenate. Acontia. Emitted copiously. Colour. Column. Deep brown, inclining more or less to dark red, paling to buff at the base. Suckers pale buff or whitish. DisTc. Pale silvery olive, without markings, except an ill-defiued dusky margin, produced by the blending of the bands that cross the foot of each tentacle. Tentacles. Clear rose-red or rose-purple, very brilliant ; those of the outer row .showing a slight tendency to lilac. Those of the first and THE ROSY ANEMONE. 49 second rows are crossed at the foot by two undefined dusky bars, some- times obsolescent, of which the U2'>per is the thicker. MoiUh. Lip white ; or light pink. Size. It occasionally rises to a height of an inch and a half; and the diameter of the tentacular flower is about an inch. Locality. The south-west comer of Great Britain : in holes and rock-pools at low water-mark. Varieties. a. Vinosa. The condition described above, which is that to which the specific name rosea was first applied, and which appears to be the most widely-spread variety. (Plate i. fig. 4.) /3. Pulcherrima. Column cream-white, merging towards the summit into pale olive. Disk cream-white, with dark lines between the radii. Tentacles crimson-lake, with several (more or less distinct) darker bars ; those of the first row thicker, usually carried erect, or arching inwards. (Plate i. fig. 6, which is copied from a beautiful drawing with which Professor Jordan has favoured me.) y. ErytJirops. Column dark brown, inclining to olive, with conspicuous pale suckers. Disk brilliant orange-scarlet. Tentacles rather short, stout, bright rose-lilac, the bands across the foot well defined. A very lovely variety, which I have found near Torquay. S. Demetana. Small and low, rarely exceeding half an inch in height or diameter. Column rich red-brown, with inconspicuous suckers. Disk crimson, often with a tinge of orange, usually more or less puckered at the margin. Tentacles crimson, short, crowded, resembling a compact fringe, (Plate i. fig. 5.) For the first and second of tliese varieties, I have retained the names proposed respectively by Mr. Holdsworth and Professor Jordan, who described them as species under these appellations. I am quite sure that both must be referred to this species. The fourth is the form so abun- dant on the Pembroke coast; a very marked variety, to which I have assigned a name alluding to the A7]/xr}Tai, the ancient inhabitants of that part of Wales. All are beautiful ; but perhaps pulcherrima, as its name imports, is the loveliest of all. £ 50 SAGAETIADiE. There is no doubt tliat S. mi'm'afa and S. rosea approxi- mate in some of tlieir varieties very closely ; and I have had many doubts about the propriety of keeping them separate. I have seen, in the vicinity of Tenby, specimens, in which some of the small tentacles of the outer row had a scarlet or orange core, and yet in no other respect could I distinguish them from the true rosea. Normal rosea; and normal miniatce were abundant on the same rock (the Woolhouse-rock) within a few feet ; which fact suggests the possibility of hybridization. Besides the scarlet-cored tentacles, miniata may be described, in those varieties which come nearest to rosea, as darker externally ; as growing to a far larger size ; as being lower and less pillar- like ; and as having a much more lax, flaccid habit of body. The qucestio vexata, — What constitutes a species ? what a variety ? is one which it is much easier to answer theo- retically than practically. Some have proposed certain arbitrary canons, such as that assumed by Mr. Tugwell, i\\?iiform distinguishes the species, colour only the variety. But this is quite untenable. In many instances colour is not only sjDecific, but even generic ; — as black, white, and fed, in well-recognised patterns and in certain fixed regions of the body, in the Woodpeckers; black, yellow and red, again in certain patterns, in Papilio ; yellow, red and white in the Picridce. Indeed, our entomological friends would be sorely puzzled to define tlieir species, if colour were denied them as a distinction. In the Butterflies alone, hundreds of indubitable species rest exclusively on colouring. The fact is, anything may be a specific character, provided it be constant. Constancy, permanency, is what we require ; let us only indicate any mark that is invariabhj found, — no matter wliether it be colour, form, pattern, surface, sculpture, or any thing else ; or any combination of THE KOSY ANEMOXE. 51 tliese, and wc have a good specific character. I believe, with Mr. A^'allacc, that " the two doctrines of ' permanent varieties' and of 'specially created unvarying species' are inconsistent with each other."* In other words, I would say a species is permanent, a variety transitory. There is no doubt, however, that the latter may be maintained within certain limits by breeding in and in ; though there will always be a tendency to revert to the original and normal character, which marks the permanent species. Though I believe this distinction to be a good one, it does not therefore follow that we can put it in practice without any difficulty. We find a specimen ; — we know nothing of its antecedents ; — at most we can trace it only through a few generations ; and thus we are precluded from applying our test of permanency to it. The only resource is the practical skill and judgment which expe- rience and observation gradually give ; and these, as they cannot be communicated to another, nor be reduced to formula3, difler indefinitely in individual cases. In the present work I must beg my readers to believe that I use the best light I have, to arrive at right conclusions. Under all its variations, which are not very numerous, S. rosea is a lovely little species. When left by the receding tide, it protrudes from its tiny cavity in the over- hanging rock, and droops, a pear-shaped button of orange- brown, with a cluster of brilliant purple tentacles just showing their tips from the half-opened centre, and a drop of water sparkling like a dew-drop, hanging from them. Then it is beautiful. But a more charming sight is seen when, as at the rock near Lidstcp, or on the AVoolhousc reef, you gaze down into a narrow basin worn by the waves of ages in the solid limestone, and, having first care- fully lifted the broad fronds of Laminaria and llhoilymoma * Zoologist, p. 5S8S. E 2 52 SAGARTIAD^. pahnata that spring from the edges, you see the dark bi^own walls and bottom of the pool, — which is filled to the brim with quiet crystal water, — all studded over with the expanded disks of rosece, nivece, and venustce. Then indeed the sloping sides and bottom resemble a parterre, of which these are the lovely flowers; while the tufts of green, brown and purple Algse that spring up everywhere around, some like moss, some like fantastically cut leaves, may well serve for the foliage of the " fairy paradise." " In hollows of the tide-worn reef. Left at low water, glistening in the sun, Pellucid pools, and rocks in miniature. With their small fry of fishes, crusted shells. Rich mosses, tree-like sea-weeds, sparkling pebbles, Enchant the eye, and tempt the eager hand To violate the fairy paradise." • It is equally attractive in those imitations of such rock- pools, which we make in glass tanks and china pans for our drawing-rooms. But, like the other species of the group to which it belongs, it is a somewhat precarious tenant of the Aquarium. I have kept at different times a large number of specimens ; but none of them, so far as I can remember, survived a twelvemonth's captivity. A dark-coloured mass of rock suits it best, serving as a back- ground for its rich crimson blossom. It loves the shadow, too ; and should therefore be placed on the side farthest from the light. A rough perpendicular surface is very appropriate for it. The Rosy Anemone occasionally protrudes the walls of the stomach, like B. crassicornis, which then overlap the disk in large furrowed pellucid lobes. It sometimes distends the tentacles till they are translucent, and then it is not uncommon to see the free ends of the acontia, lying within these organs in coils, having penetrated through the open base of the tentacle from the intersepts of the body- THK ROSY ANEMONE, 53 cavity. One may sometimes also discern fragments of the same filaments, which have become accidentally detached, driven to and fro at the tip of the interior of the tentacle. The proper ciliary motion of these twisted atoms combining with the motion produced by the lining cilia of the tentacle- wall, gives them the fitful vacillating action of spontaneous volition ; so that they may readily be mistaken for living worms accidentally imprisoned. The acontia are emitted from the pores of the body in great profusion upon irri- tation. The form and armature of their cnidce do not differ from those in the species last described. The following are the localities of the Rosy Anemone known to me : — Guernsey, E. W. H. H. : Teignmouth, R. C. R. J. : Torquay, P. H. O. : near Paignton, Rev. W. F. Short: Dartmouth, E. W. H. H. : Tenby, Lidstep, St. Gowan's Head, P. H. G: Bantry Bay, E. P. W. rainiata. ROSEA, venusta. nivea. ASTR^^ACEA. ^AGARTIAD^. THE ORNATE ANEMONE. Sagartia orncda. Plate II. Fir/s. 9, 10. Specific Characfer. Basal region of the tentacles, and the outer region of the radii blackish : a white bar aci'OBS the former, and a white cordate spot on the latter. Actinia ornata. Holdswoeth, Proc. Zool. Soc. 1S56. PI. v. figs. 5, 6, 7, 8. GENERAL DESCPxIPTION". Form, Base. Adherent to the roots of Laminaria : slightly exceedmg the column. Column. Minutely corrugated ; studded on the upper half with suckers, more numerous as they approach the summit. Form in expansion elon- gate, cylindrical. Tentacles. Moderately numerous, in five rows ; those of the first row rather stoutly conical, comparatively short ; the rest diminishing i-apidly as they approach the margin. Mouth. Not raised on an obvious cone. Lip tumid. Acontia. Emitted freely. Colour, Column. Dark orange-brown, paler at the base. Suckers pale. Disl: Central moiety pale orange, changing to a rich purplish brown on the outer moiety. The radii of the first and second rows of tentacles separated by narrow yellow bands slightly diverging "as they proceed outwards, and at their extremities partially surroundmg the bases of the tentacles, according to the following arrangement. The first tentacle may be said to arise from the space between two pairs of bands, the second being situated witliin the j^air ;* the band bifurcates near its extremity, and incloses the third tentacle : these branches again divide and form a similar inclosure for the tentacles of the fourth row :t beyond these is a set of * The apparent distribution of the bands in pairs is merely a necessary result of the fact that the secondary radii are narrower than the primary. t Hence the yellow bands are doubtless the united radii of the tertiixn and quartan series. THE ORNATE ANEMONE, very short tentacles ; these, as far as I have been able to examine them, are not connected with the yellow bauds." On each primary radius is a large heart-shaped spot of cream-white, well defined, iu the midst of the dark-brown ; and on each secondary radius a similar spot, but more elon- gated, and situate a little more remote from the common centre. Tentacles. Dark brown at the base, becoming paler toward the tip, en- circled by three white rings, of which the basal one is very distinctly defined. Mouth. Lip pink; frequently conspicuous. Size. About three-fourths of an inch in height when extended ; flower half an inch in diameter. Locality. The entrance of Dartmouth harbour, in the laminarian zone. Varieties. o. Fusea. The condition above described, TENTACLE ^ Rubida. The brown on the tentacles and certain parts ^ '' of the disk replaced by various shades of red. This attractive little Anemone appears to have been seen only "by jMr. Holds worth, who described it in detail, with accompanying drawings, in a Memoir read before the Zoological Society of London, Dec. 11th, 1855. From those details, as published in tlie Society's proceedings, I have compiled the above description, merely throwing them into that order of arrangement, which, for convenience of reference, I have adopted in tliis work. I have been aided, however, by the original bcautifid drawings, wliicli my friend has liberally placed in my hands. From these, the figures in Plate II. have been likewise copied ; fig. 9 re- presenting the flower, fig. 10 the button. " This species," as its discoverer observes, " is chiefly remarkable for the beauty of its oral disk, which, for colom'ing and elegance of marking, will bear comparison 56 SAGARTIAD^. with that of any of the larger kinds. . . . Several ex- amples were obtained at extreme low-water mark, from a large mass of detached rocks known as the Mewstone, near the entrance to Dartmouth Harbour. They were met with on two or three occasions, hut were always found nestling among the roots oi Laminar ia digitata.''^ The variety rvhida was described in the same paper. Six specimens were found among the roots of a Lammaria sent to Mr. Holdsworth from the same locality. He could find no other difference of importance, than the substitu- tion of red for brown above-mentioned. From a private communication with which he has recently favoured me, I learn that he failed to discover any more specimens of either variety, though he subsequently searched the same locality. rosea. ORNATA. icli thy stoma. A STR^EA CEA . SA GA RTIA DJi. THE FISII-MOUTH ANEMONE. Sagartia ichthy stoma. {Sp. nov.) Plate II. Fig. 7. Specific Character. Tentacles minute, marginal; each having two narrow black bars across the foot. GENERAL DESCRIPTION. Form. Base. Adherent to rocks or shells : not exceeding the column. Column. Coarsely corrugated, with no (observed) suckers. Form (in button) low, nipple-like, with a coarsely-puckered involution ; (in flower) cylindrical, in height about equal to its diameter. Disi. A shallow saucer ; with radii strongly marked ; the margin slightly exceeding the diameter of column. Tentacles. Moderately numerous, arranged in three rows, set very close to the margin of disk ; nearly equal in size, very small, short, and conical. Mouth. Set on a large cone. Lip very tumid, coarsely fuiTowed. COLOUK. Column. Brownish-scarlet, becoming pale towards the top, and tinged with purple at the very summit. Disk. Pale fawn or bay, with numerous radiating lines of black, so thick at the outer half of the area as to give the effect of a broad, black, slightly-interrupted ring. A pair of gonidial radii, opposite, white. Tentacles. Pellucid white, marked at the foot with two close-set, narrow bars of black, and a broad ill-defined ring of dusky near the middle. The radial lines of black wind sinu- ously among the tentacles, on the pale ground of the disk, with a distinct and pretty effect. Mouth. Lip deep rich scarlet. Size. Button half an inch in height. Flower three-fourths of an inch in diameter. tentacle (front). 58 SAGAETIAD^. LOCAUTY. The south coast of England : deep -water ; low rocks, Vaeieties. a. Siihisfa. The condition above described. j8. Astimma. Disk dull olive-grey. Lips dull brick-red. I know this little Anemone only by two specimens. The first (of the variety stibista) I found on an oyster in the fish-market at Weymouth, in the summer of 1853. As the oysters with which the market was supplied were brought in by a trawler, whose fishing grounds were West Bay, and the offing of Weymouth Bay, we may safely set down one of these as the native locality of my little prize. The second specimen, which exhibited that measure of diversity in colour, that I have set down as distinctive of the variety astimma, but exactly agreed with the former in all its other characters, and was manifestly, at the first glance, of the same species, was sent me from Torquay, in April, 1856, by the Rev. W. F. Short. I understand it was taken at the insular rock known as the Ore Stone. Though less showy than the former specimen, whose black-lined face and pouting scarlet lips made it very attrac- tive, this latter was still very pretty ; and it proved to be easily reconciled to captivity, for it remained in one of my tanks, — sometimes under rather unfavourable conditions of the water, — from the 10th of April, 1856, to the middle of August, 1857, a period of sixteen months. Nor have I any reason to believe that it would have died then, but for my own carelessness ; for having taken it out of the tank to examine it, I incautiously left it, after my observations, exposed in a saucer to the midday beams of a hot August sun, and found it, of course, killed, when I looked at it again. THE FISII-MOUTH ANEMONE. 59 The acontta contained, as usual, both imchamherecl and chambered cnidce. The former were linear-oblong, a^th of an inch in length, discharging an ecthorceum, four times as long as themselves, surrounded with a single spiral band. The latter were of the same form, but twice as long and wide, discharging an ecthorceum very little longer than themselves, in which I could not discern the least trace either of barbs or screw. The acontmm was taken, certainly, from the specimen last mentioned, when it was either dying or dead, decomposition having commenced ; but the invest- ing cilia were in parts still active, and the cnidce dis- charged vigorously, just as when alive. In botli varieties the small, conical, pointed tentacles projecting very regularly from the margin, impart a pecu- liar and well-recognised character to the species. These organs so strongly resembled the little sharp teeth crowded round the jaws of some fishes, that I was induced to borrow a nomen trivicde from that resemblance. The appellations of the varieties- allude, as my classical readers will have perceived, to the long-standing custom among the Oriental ladies (nor altogether unknown to the dandies of ancient Rome*) of staining the eyelids with stiMuniy a preparation of antimony, for the purpose of imparting a soft voluptuous languor to the eyes. Jezebel " put her eyes in painting" (2 Kings ix. 30 ; marg.). ornata. ■? iCHTHYSTO^fA. B. cras.sicornis. ? miniata. * See Pliuy, Xat. Hist. si. 37 ; Juv. Sat. ii. 93. ASTR^EA CEA . SA GARTIAD.E. THE ORANGE-DISKED ANEMONE. Sagartia vemista. Plate I. Fig. 7. Specific Character. Disk orange ; tentacles white. Actinia venusta. Gosse, Ann. N. H. Ser. 2, xiv. 281. Sagartia venusta. Ibid., Linn. Trans, xxi. 274. Tenby, 358 ; pi. xxiii. figs, a, b. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; little exceeding the column. Column. Smooth, or very minutely corrugated ; studded on the u^Dper half with suckers, which are not raised on conspicuous warts. Substance fleshy. Form cylindrical, the height rarely exceeding the diameter. Dish. Flat or slightly concave ; the margin somewhat undulate. Outline often ovate. Radii inconspicuous. Tentacles. About two hundred or upwards, set in about four indistinct rows ; the inner ones about as long as the diameter of the disk, the outer- most small and close-set ; slender, acute, somewhat flaccid. Mouth. A simple orifice without cone, or distinct lip ; frequently thrown into lobes. Throat ribbed. Acontia. Emitted copiously and freely. COLOUE. Column. Warm brown, varying from deep buff", to full rich brown- orange, often paler towards the lower half, where traces of alternate lon- gitudinal bands of pale and dark tint are sometimes visible. Suckers whitish. Disk. Wholly of a most brilliant orange, without markings. Tentacles. Pure white, without markings, except that the colour is generally pellucid at the foot and at the tip, and more or less opaque in the middle. Mouth. Paler than the disk. Ribs of throat white. Size. A full-sized specimen well expanded is about three-fourths of an inch in diameter of disk ; but the extended tentacles may increase this to an I THE ORANGE-DISKED ANEMONE. 61 in -h and a half, or rather more. The height rarely exceeds three-fourths of an inch. Locality. Various points in the south and west of Great Britain and Ireland. In Scotland it has not been recognised. Hollows in perpendicular and over- hanging rocks, exposed at low water : dark tide-pools. Varieties. The variation seems to be limited to the greater or less depth of tint iu the column. This most elegant species was first met with by myself in the neighbourhood of Tenby, where it is so abundant as to be quite characteristic. It has since been found in several other somewhat remote habitats, but nowhere in anything like the profusion in which it occurs in that its first recognised home. I am justified therefore in consider- ing South Wales the metropolis of the species. It occurs all along the south coast of Pembrokeshire, at least from Monkstone Point to St. Gowan's Head ; but is more than usually numerous in the fine perforate caverns of St. Catherine's Island, that form such an attraction to Tenby visitors, and in the hollows and erosions of that rich pre- serve of zoophytic game, — the Woolhouse Rocks. The Orange-disk is essentially a cave-dweller ; almost invariably choosing for its residence some crevice or cranny, or one of those little cavities made by boring mollusks, with which the limestone on those coasts is generally honeycombed* Occasionally, indeed, we find it in shallow pools, with a bottom of impalpable mud, the detritus pro- duced by the action of the waves on the surrounding rocks ; but in such cases it will be invariably found that the Actinia is attached to a hollow in the solid floor of the pool, protruding its body through the deposit by elongation, and expanding its beautiful disk on the surface. Owing to this 62 SAGAETIADJi. troglodyte habit, it is, like many of its congeners, rather difficult to procure, notwithstanding its abundance, as it must be chiselled out, — an operation, which, from the great hardness of the compact limestone, is both tedious and precarious. Hundreds might be seen - in the largest of the caverns just alluded to, hanging down from the w^alls during the recess of the tide ; the button elongated to an inch or more. And almost every dark overarched basin hollowed in the sides of the caves, or in similar situations, at Lidstep, at St. Margaret's Island, and under Tenby Head, each filled to the brim with still crystalline water, had its rugged walls and floor studded with the fuU-blowu blossoms of this and cognate species. As a specimen of the exceeding richness of these " gar- dens of the Nereids," wherewith our iron-bound coasts are adorned, I shall take the liberty of citing the description of one, as it appeared to myself in the vicinity of which I am speaking. It was on the face of the bluff castle- crowned promontory known as Tenby Head. " After scrambling over many rough ridges, we come to a perpendicular wall of rock some twenty-five feet high, jutting out from the clifi" right across our way ; its foot washed by the sea, wdiich is evidently of considerable depth, its summit tapered to a sharp edge, and the whole side holed, and furrowed, and honeycombed, and covered with barnacles to the very top. * I use the prist tense ; for alas ! it is so uo more. When I revisited Tenby in 1850, I found that these caves, and almost every accessible part of the neighbouring coast, were pretty well denuded of the lovely animal- flowers, which, in 1854, had blossomed there, as in a parterre. I fear that the hammers and chisels of amateur naturalists have been the desolating agents ; and my friends tell me, not withoiit a semi-earnest reproachful- ness, that I am myself not guiltless of bringing about the consummation. If the visitors were gainers to the same amount as the rocks are losers, there would be less cause for regret; but owing to difficulty and unskilful- ness combi)icd, probably half a dozen Anemones are destroyed for one that goes into the aquarium. THE OEANGE-DTSKED ANEJIONE. G3 " On the south side of this wall, almost at its base, on a rou2;h mass of rock so covered with luxuriant tufts of Dulse [Ithodymenia palmata) as to be richly empurpled with it, I found a little basin, somewhat irregular in outline, but rudely oval, about a foot long, eight inches wide, and six inches deep ; in other words, about the size of a soup- tiu'cen. It was much obscured by overhanging drapery of Fucus ; but, on lifting this, I was astonished and delighted with the profusion of animal life, whose gay and varied hues gave to the tiny area the appearance of an artist's newly-rubbed palette. "Lest I should seem to exaggerate if I reported the contents of this basin from memory, I took the trouble to count the specimens, noting each sort in my pocket-book on the spot. Their numbers were, — nineteen of the bril- liant Orange-disk [Sagarlia venusta), and twelve of the Snowy {S. m'vea), all fully blown ; besides two large Shore- Crabs [Carcinus moenas), a Shanny [Blennius jj/ioh's), a Ci/nthia, several Sahelloi, a group of Sabellaria alveolata, some very fine masses of Botrylloides, and many specimens of the Crown Sponge [Grantia ciliata). " Nor was this extraordinary pool less rich in its botany than in its zoology. Chondrus crisjnis, finely tipped with steel-blue, as usual ; the Common Coralline ( CoralUna officinalis)^ purpling the sides and bottom ; some small fronds of Rlwdymenia palmata, and one or two tiny ones of Laminaria saccharina, — which is particularly pretty while it is young, — were there ; as also two other kinds of superior elegance, namely, Delesseria ruscifolia, with its oak-like leaves of fine dark crimson, and the pretty rich-green feathers of Bryopsis pluniosa. Besides all these, there were other plants and animals of less note, which I did not enumerate.'^ * * Teuby ; a Sea-side Holiday ; 96, el wj- 64 SAGARTIAD^. I think it more than probable that the long deep Atlantic fiords of the sister island, will, on examination, prove at least to equal, if thej do not greatly surpass, in the luxuriance of their marine zoology and botany, any- thing that we can boast in England. As a companion to the above, I gladly give an Irish picture of 8. vemista, in situ, sketched by the graphic pen of my friend Dr. E. Per- cival Wright, the able and energetic Director of the Dublin University Museum. " Last August, while eutomologizing with Messrs. Ilaliday and Furlong in Killarney and Glengariff, we made one day's excursion down Bantry Bay — a famed spot, but, with all its fame, it has never been worked. Well ; the weather was bad, — very bad ; a thick mizzling rain soon bespangled us with heavy dew-drops : however, pulled by four good oars, we did get on. The tide being right against us, it was hours ere we reached some remarkable caves, — the chief object of our trip. " Thousands of the dark olive-green Actinia mesembry- anthemum lined these caves. It was not safe to try to land ; but in places where the sea, owing to shelter, was quiet, I could see the sea-floor covered with an extra- ordinary luxuriance of Actiniee, Sponges, &c. ; — their colours, and forms, of course, distorted by every ripple of the waves. " We did land for a few minutes on one spot ; and, even at Tenby, and under St. Catherine's Eock, I never saw so much in the time; and this, though I did not wander from a single rock-pool. In it I saw about fom- and twenty specimens of Echinus lividus, all comfortably sitting in arm-chairs nicely cut out of stone, and most of them of a lovely purple tint. Down the centre of the pool ran a narrow fissm'e quite choked with Bunodes crassicornis, which, as is their wont, had managed to gather all the THE ORANGE-DISKED ANEMONE. 65 little broken dibris of shells, and to stick tliem over their bodies, in the way children stick broken china on heaps of mud. in our Irish villages. '• But new to me as was E. lividus, and splendid as the really line crassicornes were — they were of that pretty healthy white and pink variety — yet they were surpassed by your Sag. venusta, which with S. rosea sprouted out of every fissure. The former is, I think, the most exquisite of our Irish Anemones. In your figure in ' Tenby,' the tentacles are hardly white enough, and no painting can do justice to the clear orange. Book it and S. rosea, hoth very distinct from any other of our species. I saw other Anemones that I suspect will turn out new species ; but what could twenty minutes and an insect-net effect in 'catching' such things as Sagarts? Why, touch them roughly and — they're gone ! If spared, I will visit them again ; and you shall see them, I hope, too : for if I spend a month in Bantry Bay, say next June or July, I can easily send you my Actinia captures ; — that is, if you won't visit Ireland. It is as pleasant as Jamaica." To turn from these tempting scenes of wild nature ; — our beautiful Orange-disk is easily made happy in captivity : where, indeed, fed. daily by fair fingers, and admired by bright eyes, it would argue badly for its temper if it were not. It is soon at home, and becomes one of the most brilliant ornaments of the Aquarium, expanding its lovely disk freely, fringed with its elegant border of snow-white tentacles, and thus making up in beauty what it lacks in size. It will survive an indefinite period, if it receive a moderate degree of attention. The observations which I have made on the treatment of S. rosea will apply with equal force to this species and to the following. Mr. Holdsworth informs me that he has witnessed the production of new individuals from fragments spontaneously F 66 SAGAETIAD^. detaclied from the base, in S. venusta, as Ijefore described iu the case of A. dianthis. Miss Loddiges has favoured me with information of the same phenomenon in this species. The following are the localities known to me as inhabited bj the Orange-disk : — Guernsey, Dr. J. D. Hilton : (on Laminaria3 washed up) Miss Gnille : Toiciuay, P. H. G. : Clovelly (on oysters from deep water), Rev. C. Kingsley : Morte Stone, G. T. : Lundy, G. T. : Tenby, P. H. G. : St. Gowan's Head, P. H. G. : Puffin Island, E. L. W.: Bantry Bay, E. P. W. : Belfast (abundant), C. Bosanquet. This species has close relations with ^S'. nivea. Its colouring, however, so far as I have seen, is constant, without any approach to albinism ; and its tendency to an ovate outline also distinguishes it^ though less satisfactorily. It may possibly be found hereafter that the two constitute but a single species; but in the absence of any intermediate condition, I think it best to consider them distinct. miniata. VENUSTA. nivea. ASlIi.EACEA. SAGARTIADjE. THE SNOWY ANEM0:NE. Sugar tia nivea. Plate II. Fujs. 1, 8. Specific Character. Disk and tentacles opaque white, •without markings. Actinia nivea. GossE, Devonsh. Coast, 93 ; pi. i. fig. S. Sagartia nivea. Ibid. Trans. Linn. Soc. xxi. 274. Tenby, 3G8, Froutisp. Annals N. H. Ser. 3, voL i. p. 415. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; little exceeding the column. Column. Smooth, or slightly corrugated : studded on the upper half with suckers, which form somewhat conspicuous warts. Substance fleshy. Form cylindi-ical ; the height often exceeding the diameter. Disk. Flat or slightly concave ; the margin scarcely undulate. Outline circular. Radii conspicuously marked. Tentacles. About two hundred, arranged in four distinct rows ; of which the first and second contain each twenty-four ; the third forty-eight; and the fourth, which is marginal, about one hundred. Those of the first row, when extended, are about as long as the diameter of the disk ; the others diminish gradually, the outer row being small, and often papillary. Mouth. Sometimes raised on a cone, which at other times disappears ; frequently thrown into lobes. Lip slightly tumid. Throat ribbed. Aconlia. Emitted freely and copiously. CoLora. Column. A light olive drab, slightly varying in intensity ; becoming paler towards the lower half, which is often marked with alternate longi- tudinal bands of white and drab tint. Suckers whitish. Bisk. Opaque white without markings, except that, when fully ex- panded, a grey tinge spreads in a circle, near the bases of the tentacles. Occasionally a very faint tinge of yellow sun-ounds the mouth. Tentacles. Pure snow-white, opaque, except when much distended with water; without any markings either on the body or around the foot. Mouth. Lip and throat pure white. F 2 68 SAGARTIADiK. Size. Large specimens attain the thickness of an inch, the height of an inch and a quarter, and the diameter of an inch and a half, when fully expanded. LOCALITT. The south-west coast of England. Crevices and rock-poola. Varieties. a. Immaculata. The condition above described. /3. Obscurata. Disk tinged with faint greyish-olive ; the tentacular region smoke-grey, undefined. This variety sometimes has the column of that rich orange-brown hue which is characteristic of this group. It was on the north side of the limestone promontory known as Petit Tor, on the south coast of Devon, that I first met with the Snowy Anemone, in the spring of 1852. The rock here is hollowed into large cavernous pools, isolated only at very low tides, and dark with the shadow of the slimy sponge-covered precipices that arch over them ; where Laminarke grow abundantly, affording many a nidus for profuse forests of parasitic Hydroids of the genera Sertularia, Plumularia, and Laomedea. The little red siphons of thousands of Saxicavce hang down from the holes which they have excavated in the solid limestone, each terminated by a diamond drop of water, awaiting the moment when the returning tide shall cover their abodes, and restore to them activity and enjoyment. It is their season of periodical idleness and repose. Among the roughnesses of the rock, and the conical papillary pores of the sponges, which, olive, yellow, and scarlet, stud the sur- face, — green Nereidous worms glide along, in and out, by means of the curious packets of slender bristles, alternately projected from every segment and withdrawn, that serve them instead of feet. Below the water-line, that is to say, THE SNOWY ANEMONK. 69 the level of the lowest part of the margin of the pool, which of course never varies, such animals and plants as require to be perpetually covered with water enjoy circumstances suited to their wants. In the deepest shadow, fine speci- mens of the fleshy Dulse (Iridcea eduh's), and the lovely leaf-like Delesseria sanguinea, display their crimson fronds in copious tufts ; plants that cannot bear the absence of water, their delicate leaves becoming orange-coloured in large patches, which soon die and slough away, — if left unbathed even for a single tide. The curious white Cows' paps [Alci/onium digitatum), all studded with their clear glassy polypes, project from the rock ; and here I saw several white AcHnice, which at once attracted my notice, though beyond my reach, on the opposite side of the pool. At length, however, by searching in another smaller pool, to which I could gain access, I found, beneath the drooping Oarweeds, one of the white Actinice within reach. It was three or four inches beneath the surface ; so that to procure it, it was needful to bale out the water to that depth, which I effected by the aid of one of my collecting jars, and then to cut out the animal's cell with the steel chisel. I was, however, sufficiently repaid for the labour by the beauty of this snow-Avhite Anemone. After an absence of nearly six years, I visited this inter- esting spot again. It had often been a subject of specula- tion with me whether the minute features of a rocky coast change rapidly under the action of weather and sea ; and I had looked forward to this visit with interest, as likely to afford me data for determining the question. The shore was as if I had left it hut yesterday. Everything appeared as if it had been untouched : every tide-pool, every projec- tion, I recognised : the broad cleft that I have described (Devonsh. Coast, p. 34) ; the little basins within it ; the slight projections on the face of the cliff by means of which 70 SAGAETIAD^. I scrambled across, just as of old ; the farther chasm (p. 39) ; and the large dark tide-pool in which I had seen the Prawn ; — all were exactly as when I first made acquaintance with them six years ago. This last pool is still fringed with Oarweeds crowded with Laomedea forests, and the farther walls are still spotted over with daisy-like Snowy Ane- mones, just where I saw them first, and in all prolDahility the very same identical individuals. But in the interim I had become familiar with the fair nivea, in what I may call its metropolitan home. It is in the numerous caverns and dark rock-pools into which the limestone formation on the Pembroke coast is hollowed, that this lovely species is seen to advantage ; especially in the dark holes of Monkstone, the Caves of St, Catherine's and St. Gowan's, and the overshadowed pools of Tenby Head and Lidstep. Here, as we peer into the clear water of these obscure wells, we see the Snowy Anemone studding tlie rugged sides by hundreds, like bright stars on the mid- night sky, singly and in constellations. Here, too, swarm its congeners and companions, the equally lovely rosea and vemtsta ; and this trio of graces are the very gems of the Demetian rocks. When covered by water, nivea expands freely, and con- tinues long unfolded ; but^ in situations where it is left by the tide, it either withdraws into its hole, or, if this be placed on the side of a perpendicular or overhanging rock, it hangs out in the form of a lengthened wart, with a drop of water depending from its drooping head, like a dewdrop, in the centre of which a speck of white reveals the peeping tips of the contracted tentacles. Mr. Holdsworth has observed in this species that curious form of elongation of the tentacles described under *S'. miniata. Here, however, no feAver than ten or twelve of the tentacles of the first and second rows hung down, THE SNOWY ANEMOXE. 71 strai(j1it and motionless, to a distance of two inches from tlie disk. Tliej were attenuated towards the middle, enlarging again on nearing the tip^ which was truncate in some^ rounded or obtusely pointed in others. Corrugation was present in some, but was rather difficult of detection, owing to the absence of colour. It is probable that this peculiar condition of the tentacles may be accompanied with func- tions distinct from those of the mere elongation, such as has been described under S. heUls. (See ante, p. 35.) This species bears a far closer resemblance to a dai,sy, both in size and colour, than that which has obtained pos- session of the name. Indeed, one can scarcely see a group of nivecG and venustcc under Avater, especially among the small mossy growth of grass-green Algaj, — Bryojjsis, Con- fe^'va, Calothrix, Enteromor^plia, &c., — without being forcibly reminded of a crop of daisies on a lawn. Mr, Iloldsworth finds it "not uncommon at Dartmouth, but usually small ; inhabiting crevices in steep rocks under sea-weeds; at Guernsey, in sheltered nooks, very fine." The young do not difier from the parent, except in size and in the number of the tentacles. An infant specimen that was born in one of my aquaria, adhered by the base immediately, and presently expanded. It displayed twelve tentacles, set in six pairs ; each pair being nearly parallel, and separated by a marked interval from the pair on cither side. Nivea rivals miniata in the profusion with which it shoots forth its poison-bearing acontia, on the slightest irri- tation. They arc moderately crowded with cnidce, mostly of the chambered kind, discharging an ectJiorceiivi little longer than themselves, densely armed with reverted barbs, v\hich impart the brush-like form so characteristic of this genus. Most of the recognised habitats of the species have been 72 SAGARTIAD^. already mentioned incidentally : they may, however, con- veniently be tabulated. Guernsey, E. W. H. H. : Torquay, P. H. G. : Dart- mouth, E. W. H. H. : Clovelly (on oysters trawled), C. K. , Morte, G. T. : Ilfracombe, P. K G. : Lundy, G. T. : Tenby, P. H. G. : St. Gowan's Head, P. H. G. : venusta. NIVEA. sphyrodeta. A STRuEA CEA . SA GA liTIA D.E. THE SANDALLED ANEMONE. Sagartia spliyrodeUi. Plate I. Figs. 8, 9. Specific Character. Tentacles few, thick, pui-e white ; the foot of each inclosed within a slender ring of purple, which passes off in a line towards the margin. Actinia Candida. GosSE, Devonsh. Coast, 430; pL viii. figs. 11, 12, 13 (" The Purple Spotted Anemone" ). Sagartia Candida. Ibid. Liun. Trans, xxi. 274 : Man. Mar. Zool. i. 28. tphyrodettt. Ibid. Annals N. H. Ser. 3, vol. i. p. 415. GENERAL DESCRIPTION. Form. Base. Adherent to rocks; expanded beyond the column. Cohimn. Smooth, without conspicuous suckers. Substance pulpy. Form cylindrical; the height in general slightly exceeding the diameter. Disk. Flat or slightly concave ; the margin entire. Outline circular. Radii distinct. Tentacles. About foi-ty-eight, arranged in four rows ; of which the first and second contain each eight, the third and fourth each sixteen. Those of the first row are by far the largest, the size diminishing regularly to the external row : their form is .stout and conical. They are usually spread horizontally, and have their tips fi-equeutly bent downwards. Mouth, Raised on a conspicuous cone, which, however, is not per- manent. Lip capable of great protrusion and distension. Acontia. Emitted freely and coi5iou.sly. Colour. Column. Marked longitudinally with many bands an^ narrow lines of opaque white, separated by interspaces, always narrow, of pale semi-pellucid brown, or drab. The summit is occa.sionally tinged with reddish-brown. Disk. Opaque white, marked with five radiating lines of pellucid white. The tentacular region is marked with the ring-lines to be presently described. Tentacles. Ivory white, without the least api)earance of spots or bars : but at the veiy foot, where each tentacle springs from the horizontal disk, it is sunounded by a narrow ring of purplish, reddish, or dusky brown. 74 SAGAETIAD^. whicli is occasionally broken in front, but always passes off behind in a Flender Avavy line to the margin, where it slightly bifurcates. Frequently the ring dilates into an i;ndefined spot at each side of the tentacle-foot. Siimetimes the line passing off to the margin can be scarcely discerned beyond the second r„x,»„„.„^^- ^„ .^^^ X'ow, and sometimes the whole mai-king seems TENTACLES OF SPHT- / ° RODETA obliterated. {vieived verticcdiy). Mouth. Pure white. Size. Half an-inch in height, and about the same (or occasionally a little more) in expanse. Locality. The south and west coasts of England. Low-water mark. Fissures in rocks ; the under surface of stones. Varieties. a. Candida. The condition above detailed, which I originally described in my " Devonshire Coast" under this specific name. ^. Xantliopis. Disk assuming various shades of yellow, from a pale chrome or lemon-colour to a deep orange, or even dull vermilion. This pretty little species Aras discovered by myself at Ilfracomlbe. It Avas during an unusually low spring- tide, in October, 1852. Specimens occurred at that time in two localities, having this in common, that in each case they were adherent to the perpendicular or overhanging surface of the cliff, at the very verge of lowest water. The animals were ^social : in the one case I found three indi- viduals associated ; in the other many dozens, a numerous colony thronging the approximating sides of a narrow fissure that runs far up into tlie solid rock at the seaward base of Capstone Promenade. A frequent tendency to a pendent posture was noticed ; for even Avhcre the general surface of the rock was perpendicular, many of the Anc- THE SANDALLED ANEMONE. 75 mones were hanging from "beneath the little points and projecting ledges. In describing these specimens, I suggested the possibility that they might he referred to the Actinia alba of Mr. "\V. P. Cocks.* The absence of the bright yellow dots that were found on the mouth of the latter, and the entire want of visible suckers, induced me to consider mine as unde- scribed. It is true, the repeated occurrence since of specimens with a disk more or less yellow nullifies the force of the former objection, but the latter remains; and imtil I see specimens of ^1. alba from Mr. Cocks's locality, I dare not assume the identity. From original drawings with which that gentleman has kindly favoured me, I per- ceivCj moreover^ that the tentacles in alba are numerous and slender, whereas in sphyrodeta they are few, thick, and conical. Besides this, the marking of the ten- tacles in alba, which are described as " barred, having opaque white patches anteriorly," removes the animal from any species wnth which I am acquainted. I am not, however, without hope, that before this work is closed, the kindness of my Cornish friends may bring me into personal acquaintance with this, and other desiderata of that prolific coast. The substitution of another appellation for that whicli I had at first assigned to this species was called for on two accounts. First, there was already a species named Candida by Miiller ; of which fact I was not aware. Secondly, this name proved objectionable. While no specific name may be rejected on account of its having no significance, every one ought to be rejected which has a false sig- nificance. Mr. Holdsworth's discoveries of the species at Dartmouth and in the Channel Islands have proved, or at * Johnst. Br. Zooph. ; Ed. 2 ; 217. Rep. Cornw, Polyt. Soc. 1851 ; 6. 76 SAGAETIAD^. least rendered it highly probable, that the normal con- dition is to have the disk of a yellow hue, more or less deep, the white variety being nothing more than the albinism to which organic colours so often tend. The term " candidal'' therefore, became inappropriate as a nomen triviale ; and I have sought one which should express a more unvarying character. The word " sphy- rodeta'''' signifies sandalled, from a^vpa, the ankles, and Bico, to bind ; and alludes, as I need scarcely say, to the line which, like a narrow ribbon, encircles the tentacle-foot. That the white disk marks a degenerated condition is rendered more probable by some facts that have come under Mr. Holdsworth's observation, and, in part, also under my own. A specimen obtained by that gentleman at Dartmouth was at first of a rich chrome-yellow over the whole disk ; but after having been some time in captivity, it gradually faded to a sort of dull cream- white ; in this condition, my friend submitted it to my care for a few days, during which time it quickly resumed its brilliant face. Another individual, which I think Mr. Holdsworth brought from Guernsey, fell into a like condition. Writing of this, he observes, *' The animal has been out of sorts, and I have been obliged to administer to it several draughts (of pure sea-water), which have nearly set it to rights again. The beautiful colour of tlie disk, hoAvever, has nearly vanished, but some traces of it are still to be seen around the moutli. When I first had it, the colour was very conspicuous." The Sandalled Anemone is an interesting little captive. It expands its flower-face with great readiness ; rarely remaining long closed, provided the surrounding water be pure. The large conical tentacles stretch out hori- zontally to their utmost, like a star ; and though, on being touched, it will partially contract, it unfolds the instant THE SANDALLED ANEMONE. 77 the annoyance ceases, and is presently full-blown again. It is fond of floating at the surface of its prison, the base dilated at the top of the water, like a swimming Nudi- branch, the body hanging downwards, with the tentacles widely expanded. It cannot be considered a common species ; but where it does occur, it is usually in some numbers. It is easily obtained when discovered, as it does not inhabit holes or crevices, but adheres to the smooth rock ; it does not appear to indue its body with gravel, or any extraneous substances. Mr. Holdsworth found it not uncommon at Guernsey, with the unexpected habit of lodging under stones on the beach, at low water. At Dartmouth the same observer records its occurrence on the roots of Laminaria, as well as on the rocks. In my original notice of the species, I have mentioned the readiness and profusion with which the acontia or armed filaments are shot forth from the body on the slightest provocation. Subsequent observation has abun- dantly confirmed this irritable habit. The character and armature of the cnidm are also there noted. The localities of the species are as yet but few, though they are widely scattered. Jersey, Guernsey, E. W. II. H. : Dartmouth, E. W.H.H.: Ilfracombe, P. H. G. : Hilbre Island, E. L. W. nivea. SPHYRODETA. pallida. ASTR^ACEA. SAGARTIAD^. THE PALLID ANE3I0NE. Sagartia pallida. Plate III. FUjs. 4, 5. Specific Character. Tentacles numerous, slender, white, each i-ising between two bowed blue lines. Actinia pallida. Holdsworth, Proc. Zool. Soc. 1850, pi. v. fig. 4. Sagartia pallida. Gosse, Annals N. H. Ser. 3. vol. i. ji. 415. GENERAL DESCRIPTION. FOKM. Base. Adherent to rocks ; considei'ably wider than column ; outline undulate. Column. Smooth, without conspicuous suckers. Substance pulpy. Form cylindrical, pillar-like, about twice as high as wide, when extended, but very flat when contracted. Margin a low parapet. Bisk. Flat or slightly concave ; the margin entire. Tentacles. Numerous, arranged in four rows ; moderately long, slender, and slightly tapering to the tips, their length regularly diminishing from the first row outwards. They are commonly carried sub-erect, the external rows arching outwards. Mouth. ? Acontia. Emitted from the moiith in some abundance, but not very readily. Colour. Column. Pellucid whitLsh. White longitudinal lines are sometimes visible, but they ai-e merely the edges of the septa, seen through the translucent skin, and not bauds of surface-colour. Dish. Pellucid whitish. Tentacles. Pellucid whitish. The foot of each ten- tacle is embraced by two curved lines of dark blue, Avhich approach each other without meeting ; and jDass off in front towards the centre of the disk, and behind towards the margin, in the form represented in the accompanying figure. The general efiect is to ientacle OF produce a bluish shade on that i-egion of the disk pallida from which the tentacles spring. {viewed verticalhj). I THE PALLID ANEJIOXE. 79 Size. Diameter of column about one-third of an inch ; height of column two- thirds ; expanse of flower nearly an inch. Locality. South-west coast of England ; rocks between tide-marks. Varieties. o. Cana. The colourless state above desci'ibed, Plate iii. fig. 5. /3. Rufa, Coluum of a dull brownish-orange, paler or deeper in tint. Plate iii. fig. 4. I am indebted for my knowledge of this little form to Mr. Holdswortli, wlio discovered about a dozen speeimens scattered about the rocks near the entrance to Dartmouth Harbour, " a part of our western coast, which, from its steep rugged character, and its luxuriant growth of sea- weeds, presents a fruitful hunting-ground for those in search of marine productions." They were obtained in July, 1855, and were described by their discoverer, in a Memoir read before the Zoological Society of London in the following December, and subsequently published in their Proceedings. All of the individuals were of the variety cana, differing in no respect among themselves except in size. " They were found on the exposed surface of perpendicular rocks at about half-tide mark ; and Avhen out of the water and contracted, were very difficult to dis- tinguish, owing to their great transparency." * Some time afterwards the same gentleman obtained several specimens of a little Anemone which agreed with liis former ca])tives in every respect, save that their column was of a rufous hue ; the tentacles, however, having the same characteristic foot-marks as before. He concluded * Proc. Zool. Soc. 1S53. 80 SAGARTIAD^. that they were but yarjing phases of the same species ; and, as he kindly gave me an opportunity of forming a judgment by presenting me with a specimen of each colour, I concur with him in this opinion, and have accord- ingly so represented them. Some of my friend's observations on this minute species, — made in the course of a correspondence concerning its claim to be so considered, — will be read with interest. " Pallida is certainly not Candida [= s^hyrodeta\. I have now seen, and know both well, and can readily point out the distinctions. Pallida may be easily taken for a young dianihus at first sight, having a smooth skin, with a rather erect body, and long pellucid filiform tentacles The basal rings on [? around] the arms of pallida are even narrower than in Candida^ and have no direct communi- cation with the edge of the disk ; nor is there any appear- ance of a spot; their colour is almost black, but with a purplish tinge. The disk is quite transparent. The original specimens were almost colourless, but later captures were of a reddish buff, like some of dianthus ; and one of these, not more than half an inch in expanse, produced about a dozen young ones, about an eighth of an inch in height, — slender little things, with tentacles almost erect. They resembled their parent in form and colour, as far as could be seen in such minute creatures. There was no other Actinia besides the red pallida in the glass at the time, and the young ones adhered to the side of the glass vase, immediately surrounding the larger specimen, so that I had no doubt of their origin I have more than once suspected that jiallida was merely the young of dianthus : but surely the latter would not breed when only half an inch high." I may add that the characteristic lines of blue, though minute, are a sufficient distinction of the species. THE PALLID ANEMONE. 81 In my limited opportunities of investigating this Ane- mone, I found it impatient of light, and sufficiently loco- motive. A specimen, adhering to the upper surface of a flat stone, I put into a tea-saucer ; it immediately crawled to the edge of its stone, glided round, and passed under, till it was quite out of sight : it thus traversed about thrice its own length in a quarter of an hour. I then tm*ned up the stone, and the animal presently crawled oiF to the bottom of the saucer : closed all the time, except that the tips of its tentacles were protruding. Its manner of crawling was somewhat curious. It gradu- ally distended a portion of its body, which then was swollen, and quite pellucid, having a strange appearance, owing to the white china shining through the tissues of the distended portion. Then this part, being raised from the bottom so as to be loose, was pushed out and took a fresh hold, and the other half was rapidly pulled up to it, when the ante- rior half began again to distend instantly, and proceeded as before. The progress could be easily watched with a lens, over the minute specks of the bottom. It was impos- sible to witness the methodical regularity of the process, and the fitness of the mode for attaining the end, without being assured of the existence of both consciousness and will in this low animal form. At night I found it had marched about three inches, or twenty-four times its own diameter, in six hours : but its progress, while I watched it, was much more rapid than this. The only recognised habitat for Sagartia pallida is — Dartmouth, E. W. H. H. sphyrodeta. PALLIDA. dianthus. A STRjEA CEA . SA GA RTIA DjE. THE TRANSLUCENT ANEMONE. Sagartia intra. Plate III. Fig. 6. Specific Character. Wliolly pellucid-white, witliout markings. Actinia peUucida. Alder, Catalogue of Zooph. of N'orthumb. and Durh., 43. Sagartia pelludda, GossE, Annals N. H. Ser. 3, vol. i. p. 415. jjura. Aldee, in litt. GENERAL DESCRIPTION. Form. Base. Adliei'ent to shells from deep water : somewhat exceeding the column. Column. Perfectly smooth, without visible suckers. Substance pulpy. Form cylindrical, a little higher than wide, when extended, but nearly flat when contracted. Disk. Slightly concave ; the margin entire. Tentacles. Thirty or upwards, arranged in about three rows ; the inner ones longest (about twice the diameter of the disk in length) ; diminish- ing regularly outwards, the outermost row being rather short. The inner ones jre usually carried more or less erect, the outer arching downwards. Mouth. Set on a small cone. COLOUB. The animal is wholly without positive colour, except that the tentacles have sometimes a slight tendency to become sub-opaque at each extremity, when they assume a white appearance in these parts. Occasionally a few white lines occur on the column ; but these appear to be merely the edges of the septa, seen through the transparent integuments. Size, About a quarter of an inch in height, and one-sixth in diameter of column ; expanse nearly half an inch. Locality. The coast of Northumberland. On old shells from deep-watei*. I THE TRANSLUCENT ANEMONE. • 83 This species I know only by the descriptions and figures of Mr. Joshua Akler, who has kindly put into my hands, not only the published " Catalogue of the Zoophytes of Northumberland and Durham," in which it first received a name and place among our Anemones, but additional notes in MS., and several original drawings. All these I have used in my diagnosis and figure. Tiie name " pellucida,^^ originally applied to this little animal, having been preoccupied, ]\Ir. Alder proposes that it should be called '' pura.^^ Little is known of its history. Its discoverer observes of it, — " It has occurred to me two or three times at Cullercoats, on old shells, — crusted shells of Fusus anti- quus from deep w^ater, — nestling among the Serpul^e and Barnacles with which they were covered. It is so incon- spicuous, when contracted, as to elude observation ; and it was not till the shells had been some time in sea-water, and the xVctinia became expanded, that its presence was detected. A specimen kept in a vase was very restless, shifting its place continually, and often changing form." It seems to be somewhat rare. Mr. Alder has seen but three specimens. Mr. R. Howse has obtained it once or twice from the five-men boats, on the same coast. His specimens were slightly larger than Mr. Alder's. sphyrodeta. PUR A. pellucida. g2 ASTR^ACEA. SAGARTIABjE. THE EYED ANEMONE. Sagartia coccinea. Plate V. fig. 4 : XII. fig. 4 {magnified). Specific Character. Body rufous, with white lines ; tentacles pellucid, ringed with white, marked at the foot with a black bar, and two triangular black spots below it. \ Actinia coccinea. Muller, Zool. Dan. Prod.; 231, No. 2792. Zool. Dan. ii. 30 ; pi. Ixiii. figs. 1—3. Johnston, Brit. Zooph. 2d Ed. p. 215. Sagartia coccinea. GossE, Annals N. H. Ser. 3. vol. i. p. 416. GENERAL DESCRIPTION. Form. Base. Adherent to shells, in deep water : little exceeding the column. Outline irregularly cut and lobed. Column. Smooth, without visible suckers. Substance pulpy. Form cylindrical ; the height, when extended, twice the diameter ; the margin tentaculate. Disk. Flat; the margin entire. Outline circular, scarcely exceeding the diameter of column. Radii distinct, smooth. Tentacles. About sixty-four (in my largest specimen), arranged in three indistinct rows, of which the first and second contain each sixteen — the third, which is marginal, thirty-two. The inner rows are the largest, some of the outermost being minute points. Compared with the average of Anemones, they are short and thick, obtusely conical, and stand nearly erect. Mouth. Not raised on a cone. No distinct lip. Acontia. Protruded freely, both from column and mouth. Colour. Column. Light brownish orange, marked with many white or whitish longitudinal streaks from margin to base, more numerous below. These streaks are of varying width, but are in general equal or superior to the intermediate red spaces ; their edges are irregularly jagged. They are THE EYED ANEMONE. 85 not formed by the edges of the septa, nor always correspondent with them. Disk. Light red. Each radius bears two white lines, — one parallel and close to each edge, but separated from its neighbour by a fine line of the ground coloui* : this gives an appearance as if every radius were divided from its fellow by a pair of white lines. Among the tentacles the colour of the disk becomes a rich and brilliant orange, which colour extends in short lines between the tentacles over the edge of the margin. Tentacles. Pellucid, colourless, with four broad rings of opaque white, and a white tip : the rings are obsolete on the hinder face. At the foot of the front, a band of dark brown divides the two lower white rings, the lowest of which is succeeded by two triangular clouds of dark brown. Mouih. The radial lines end suddenly at the edge of the mouth, which is sharp and abrupt. The upper part of the throat is orange, but pre- sently becomes a deep red-brown. I I Size. TENTACLE The largest I have seen is half an inch in ^^ie^^gd endwise and height, by about one-third of an inch in diameter frontwise). when expanded. Locality. The north-west coasts of Europe. Laminarian and coralline zones. I owe my acquaintance with this attractive little species to the kindness of Mr. Charles W. Peach, who forwarded to me, in April of the present year, four or five living specimens attached to an old pecten-valve from deep water off the Caithness coast. The same gentleman has since favoured me with sketches of manifestly the same species, which he made from the life, during his residence in Cornwall. It was first described by Miiller, in 1777, and figured in his magnificent work on the animals of Den- mark. Dr. Johnston included it in his second edition of " British Zoophytes," on the authority of Edward Forbes, who found it on the coast of Ireland, " on rocks 86 SAGAIITIAD^E. and sea-Aveeds ;" but added no other information to tlie description of Miiller, which he quoted in the original Latin. An expression in this, Avhich had puzzled me not a little, became graphically descriptive when I saw the living animal. Miiller says that the tentacles " seem com- posed of an eye furnished with exceedingly slender rings crowded together," — a comparison which at first seems little applicable to such organs. But, in fact, they are frequently contracted into very Ioav cones or warts ; when, viewed from above, they present the appearance of a number of fine rings surrounding the central point, very much like the eye-spots in a butterfly's wing. (See left- hand figure above.) The colony in my possession consists of one of the size and character that I have described above, and several minute ones around it, none of them so large as a small pea. Since I have had them, two or three more have been produced from the largest, from the size of a grain of sand to that of a poppy-seed. I believe all of these are the result of a spontaneous separation of fragments from the base, and not of a generative process. The most minute displays its circle of tiny tentacles. The outline of the base is exceedingly variable : it projects in ragged promontories and rounded points, which continually, though sloAvly, change their form and relative proportions. From some of these, minute fragments sepa- rate, which soon become independent animals. It is possible that the Actinia lacerata of Sir J. Dalyell may be this species ; but I rather incline to identify it witli our viduata. The sinuous outline on which he relied rather indicates a condition than a species. Thoiigh the short conical form of the tentacles is cliarac- teristic, yet occasionally they assume a lengthened slender shape, their markings becoming evanescent. • JMiiller THE EYED ANEMONE. 87 describes tlie animal as " changing place by the aid of its tentacles;" I find it rather given to wandering, but not in this manner, which I have never seen an Actinia use (his phrase '*«^i congeneres" notwithstanding), but \>j the extension and contraction of the base. Ireland, E.F.: Caithness, C. W.P.: Cornwall, G.W.P. miniata. venusta. COCCINEA. viduata. A STRJEA CEA . SA GA RTIA D^E. THE CAVE-DWELLING ANEMONE. Sagartia troglodytes. Plate I. fig. 3 : II. fig. 5 : III. figs. 1, 2 : Y.fig. 5. Specific Character. Tentacles barred transversely ; marked at their foot with a black character resembling the Roman letter B. Actinia viduata. Johnston, Mag. Nat. Hist. viii. 82. fig. 13. E. Forbes, Ann. ISTat. Hist. iii. 48. Couch, Com. Fauna; iii. 75 (nee Mliller). mesemhryantkemum, var. $. Johnston, Brit. Zooph. Ed. i. 211. troglodytes. Johnston (after Price), Brit. Zooph. Ed. 2. 216. fig. 47. Cocks, Rep. Cornw. Polyt. Soc. 1851. 6. pi. i. fig. 16. ? elegans. Daltell, Anim. of Scotl. 226 ; pi. xlvii. fig. 9. 1 ejcplorator. Ibid. Ibid. 227; pl.xlvi.fig.il. Sagartia troglodytes. Gosse, Linn. Trans, xxi. 274 : Tenby, 365 : Manual Mar. Zool. i. 28 : Annals, N. H. Ser. 3. i. 416. aurora. Ibid. Ann. N. H. Ser. 2. xiv. 280 : Tenby, 356 (Frontispiece). Scolanthus sjohceroides. Holdsworth, Proc. Zool. Soc. 1855. pi. v. figs. 1—3. GENERAL DESCRIPTION. Form. Base. Adherent to holes in rocks, frequently detached : somewhat exceeding the column. Column. Smooth towards the base, but beset on the upper two-thirds with suckers, which have a strong power of adhesion. Substance firmly fleshy. Form cylindrical and much lengthened, in full extension, the height many times exceeding the diameter. Margin teutaculate. Dish. Flat or slightly concave : the margin rarely undulate. Outline circular. Radii strongly marked, and crossed by close-set transverse striae. Tentacles. Numerous (amounting to two hundred or upwards in some specimens), arranged in four or five rows ; the first row largest, and decreasing gradually to the outermost ; in extension about as long as the width of the disk, conical, bluntly pointed. The manner in which they are carried varies in the difiFerent varieties. Mouth. Generally elevated on a cone. THE CAVE-DWELLING ANEMONE. 89 Acont'ia. Long and very slender. Emitted reluctantly, and only on great irritation. Colour. Column. Olive, of a greener or browner tint in dififerent specimens, marked -with pale longitudinal stripes, widest and most conspicuous at the base, where the longer alternate with shorter ones, all generally vanishing towards the summit. The suckers for the most part pale. Disk. Varied with black, white, and grey, in a delicately pencilled pattern, that has justly been comjiared to the mottling of a snipe's feather. The pattern, which is pretty constant, is produced by the following elements : — each primary radius is greyish-white from the B-mark of the tentacle-foot, about half-way to the mouth ; then there is a patch of black inclosing a spot of white (often very bright), and then a narrow line of pale yellow or drab, edged with black, brings the radius to the lip. The secondary radii have the same pattern, but more attenuated. Tentacles. Pellucid grey, crossed by three (or four) broad rings of pellucid white, of which the lowest is undefined, and is frequently tinged with buff or orange. At the foot of each tentacle is a black mark con- TENTACLE OF S. TK0GL0DYTE3 (front). sisting of a thick transverse bar, succeeded by two curves, the whole bearing the form of the Roman capital letter B- This mark is very con- stant and characteristic ; sometimes, though the form is preserved, the outline is wholly filled up with black ; and sometimes, but very rarely, the whole is nearly or even quite obliterated. Mouth. Generally whitish. Size. Large specimens attain a diameter of an inch in the column, and two inches in expanse of flower : the height i^ sometimes two inches and a half, but more commonly it does not exceed an inch.* • Mr. Holdsworth, in one of his letters, has drawn a pen-and-ink sketch of one which was protruding to a height of two inches from the sand at the bottom of his tank ; and states that, as the sand was full two inches thick, and that, to his belief, the troglodytes was attached,— it must have been four inches long. 90 SAGARTIAD-E. Locality. The coasts of England and Scotland. Hollows in rocks between tide- marks. Varieties. * Witli cliaracteristic marks on disk and tentacles. e. Scolopacina. The condition above described. (Tenby : Torquay.) Plate II. fig. 5. 10. Hypoxantha. Disk and tentacles pinkish drab: the latter strongly barred, with the B indistinct ; each tentacle full orange. (F. H. West iu litt.) y. Badifrons. Disk ground-colour pale umber-brown : tentacles wholly pellucid grey. (F. H. "West in litt.) 5. Alhicornis Disk, ground-colour French-grey ; tentacles wholly opaque white. (F. H. W. in litt.) ** With characteristic marks on tentacles only. e. Niffrifrons. Column greenish drab, duskier towards the summit. Disk uniform blackish-grey ; summits of mouth-angles orange-cream- colour. Tentacles pellucid, for the most part marked with an undefined long patch of opaque orauge-cream-colour on the lowest third of the front; above this three remote spots of opaque white on the fi-ont face. The J3 distinct when searched for, but nearly merged in the dark hue of the disk. (Morecambe Bay.) C Fuhicornis. Column drab, blackish at the summit. Disk dull umber ; each radius with an imdefined centre of black in the exterior half J the interior third wholly drab, separated by black lines. Lip narrow, orange. Tentacles short, remarkably blunt; numerous, in five rows ; uniform opaque pale orange ; the B strong, and distinct. Between the bases of the tentacles black radial lines are continued on a fawn ground, which becomes orange marginally, with a pretty effect. (Morecambe Bay.) 7j. Pallidicornis. Column dull grey, blackish above, becoming dull rusty immediately at the summit. Disk dull sepia-brown ; the i-adii sepa- rated by slender black lines : primary radii with a central white spot broadly margined with black. Tentacles short, very blunt, set in five full rows ; opaque dull cream-white, the front with a line of faint orange, and a broad ill-defined stripe of blackish down each side; each tipped with a round dark spot. The Jj separated into its constituent halves, by a dividing line of whitish. (Morecambe Bay.) Plate I. fir/. 3. 6. Aurora. Agrees with a iu column and disk, and in the form and comparative fewness of the tentacles ; but the colour of these organs i.s brilliant orange, with the B rather ill-defined. (Tenby : Torquay ) Plate IIL^^s. 1, 2. THE CAVE-DWELLING ANEMONE. 91 I. Jiuhicunda. Agrees with o in disk aud tentacles (nearly); butgi-ound- colour of tentacles rose-red : column dull buff. (Torquay.) K. Lilacina. Column greyish-drab with faint longitudinal bauds of darker. Disk buff, the radii separated by delicate black lines. Tentacles an exquisite light lilac/ with a white cloud at the lower part, succeeded by a strongly-defined black J^. (Boulogne.) A. Mdanoleuca. Column greenish drab. Disk whitish, becoming orange on the central region. Tentacles divided into well-defined alter- nate groups of semi-pellucid white and bluish black ; about five groups of each colour, but not quite regular in extent : those of each hue are con- .spicuously ringed with a darker tint, aud have the B thick aud strongly marked. (Morecambe Bay ; Boulogne.) Plate V. fig. 5. fx. Prasina. Disk and tentacles transparent crown-glass-green ; pi'imaiy radii with a white spot, secoudar}'- with a white line. Lijo white. (Firth of Forth 1 Dr. T. S. Wright in litt.) *»* Without characteristic marks on disk or tentacles. (Column drab.) V. Flcc'lcoma. Disk grey-b\iff, more positive on the lip ; tentacles warm orange-buff; remarkably short, blunt, and stiflly set. (Boulogne.) |. Auricuma. Disk pale orange, with an undefined dash of white on some of the radii. Tentacles long, slender, pellucid rich orange, (More- cambe Bay.) 0. Luna. Disk warm orange, with the central fourth white. Tentacles elongated, opaque white, with an unbroken line of pellucid white running down each side. (Boulogne. F. H. W. in litt.) IT. Xox. Disk aud tentacles black : the latter much attenuated, with an unbroken line of grey running down each side. (Boulogne. F. H. W. in litt.) p. Eclijjsis. Disk black. Tentacles opaque brilliant orange. (Jrorecambe Bay. F. H. W. in litt.) (T. Nycthamera. As p in every respect, except that the black of the disk ends abruptly at half-i-adius, the central portion being light grey. (Moic- cambe Bay. F. H. W. in litt.) T. Hesperxis. Wholly pure white ; gradually acquiring colour in a con- finement of some months. (Lundy. W. Brodrick in litt.) V. NcihUis. Disk deep violet-blue. Tentacles rich orange. (Cheshire Coast. Lady Cust in litt.) From tlie above list it will be readily perceived that there is no species of our native Anemones that approaches * I describe it as I see it ; but Mr. West, to whose liberality I am indebted for this, as for so many specimens of this species, informs mo that it is now in a deteriorated condition. Originally it was a very rich full lake or dark lilac. 92 SAGARTIAD^. this in Protean variability. And yet there is, in general, no difficulty in determining the species ; the characteristic B is an excellent note of distinction ■wherever it is present ; and in those varieties in which it is obliterated in the evanescence of the markings, as in vars. fju, v, ^, o, or merged in the abnormal spread of the dark hue of the disk, as in vars. tt, p, o-, v, the true character of the specimen will be betrayed by the form and substance of the body, the drab colouring of the column, or the tendency of the tentacles to assume the orange hue.* It is one of our most generally distributed species, rang- ing apparently all round our coasts, fi-om east to west, and from north to south. It is also tolerably abundant, at least in many of its localities, though less liable than some to be seen by casual observers, from its habits of retiremei;it. Mr. Price well characterised it, when he proposed for it the name of troglodytes (" cave-dweller," from rpcojXT}, a cavern, and 8vvQ), to enter) ; for its favourite habit is to ensconce itself in holes and crevices of the solid rock, into which it retreats on alarm. In the shallow pools that floor the largest of the caves at St. Catherine's, Tenby, the vars. scolojjacina and aurora are abundant, especially the former, spreading their pretty blossom-faces at the bottom of the clear water. And yet it is not easy to discover them even when scores are thus exposed ; for the mottled colouring of the disk and tentacles is so like that of the sand and mud of the pools, that even a practised eye may overlook them without the closest searching. They often protrude the tentacles only, clustered perpendicularly, through the mud, and sometimes only the tips of these organs. Their concealment is aided by the fragments of sand, gravel, and broken shells, that * " lu addition to these characteristics, I think the stout firm texture of the base a fair mark, as it is not so readily injured as in most species. Also the comparatively slight adhesion, at least when you can get fairly down to it : I think it generally yields to careful fingering." (F. H. W. in litt.) THE CAVE-DWELLING ANEMONE. 93 adhere to the suckers of the cohmin ; these foreign bodies are often present in considerable quantity, and are pertinaciously retained for a long time, even in captivity. Its general resort is not very low; fi-om ebb neap-tide downward may be considered its range : but the var. aurora affects a much higher level, habitually dwelling near high-water mark, but then it is invariably in some little hollow of the rock in whicli the water stands. Several of the varieties have been found at Morecambe Bay, by my friend Mr. F. H. West. He describes the locality as " a low, flat, sandy shore, remarkably dreary and uninviting for the sea-coast, and without so much as a rock in sight. The tide goes out a considerable distance ; perhaps three-quarters of a mile, or even more, laying bare an almost unbroken expanse of what is rather mud than sand, very soft and tenacious. Towards the south side of the Bay is a spit of firmer ground where a few stones are uncovered, which can hardly be dignified with the name of boulders, since any of them may be turned over without assistance. Attached to these we find A. dianthus, both the pure white and orange varieties, mostly young. In the course of an hour we found numerous specimens of these, several varieties of troglodytes, some rather pretty pied sorts oicrassicornis, and of course tlie comraonmesembri/anthemmn. Several kinds of Eolis, as coronata, papillosa, Drummondi, and pellucida, are found here : — Sa^ellce in abundance ; and Sertidarice, various. There are no rock -pools ; but in the sandy hollows are Gobies, Blennies, Fifteen-spined Sticklebacks, and Pipefishes ; not to mention young Con- gers, that flop and flounder about when disturbed with most unpleasant energy. , . . All the troglod/jtes, including the orange-disked, present themselves through the sand, much elongated, — the point of attachment being 94 SAGARTIAD.E. sometimes three or four inches below the sm-foce. They are all equally sensitive, shrinking on the slightest alarm." Mr. rioklsworth found the species under circumstances "which deceived him into the belief that it was a per- manently free form, and he accordingly named it ScoIantJius sphce'/'o'ides.* " The specimens were found near low- water mark, imbedded in the fine chalky mud which fills the crevices of the rocks at Seaford, their expanded disks being just level with the surface, but so nearly covered that only a faint star-like outline was visible ; on being touched they instantly disappeared; and so great was their power of inversion and contraction, that on digging carefully, they were generally found about one-and-a-half inch deep, and having that peculiar bead-like form which lias suggested the specific name of sijhcero'ides. There was usually a depth of six or seven inches of mud below them ; so that they could not have been fastened to the rock ; and since I have had them at home, now nearly five weeks, they have not shown the least inclination to attach themselves to the gravel, or glass sides of the tank in which they are living ; three of them have burrowed into some sand on which they were placed, but the others remain on the sur- face and are but rarely contracted. Soft mud is probably their natural liabitat, being the most easily penetrated ; and I could find no traces of any of these animals in a con- siderable tract of sand only a few yards from the locality whence these were obtained." My friend was subsequently convinced that lie had been misled by the appearance of the specimens : ]ie examined them with me, and kindly gave me one of his original specimens, and we were both convinced that they were of this species. The apparent perforation at the rounded pos- terior extremity could have been nothing more than the * Proc. Zool. Soc. ; May, ] S55. THE CAVE-DWELLING ANEMONE. 95 contraction and approximation of the column avomid tlic retracted base ; and we proved its power of basal adhesion in the specimen whicli came into my possession ; for it not only attached itself by the entire broad base to the saucer — and tliat repeatedly after having been removed — but dm'ing the night marched several inches to seek shelter under a shell. What had appeared to be an epidermis was nothing but a ring of exuviated mucus, whicli was readily removed, bringing away all the dirt, and leaving a clean smooth Sagartia. The tentacle-feet displayed the 13-mark, and there seemed little to distinguish it from the normal colouring, except the dingy drab hue of the column. A specimen of the var. fulvicornis, in my possession, when disturbed, assumed a globular form, with tlie base contracted to one-sixth of an inch in diameter, and became very buoyant. It thus strongly reminded me of Mr. Holds worth's sphcBro'ides. It seems the habit of the species to be very free ; and this tendency more especially marks the mud-loving kinds with a pale drab exterior. It is a common thing for one of these to lie for weeks in a tank rolling loosely about the bottom, alternately contracting and stretching its column, and folding or expanding its tentacles at pleasure, apparently quite healthy, and yet showing no inclination to choose a settled residence. I have had many examples with this habit, which, by and by, having soAvn their wild oats, suddenly fix themselves, give up their vagrant ways, and become sober housekeepers. Mr. Iloldsworth writes me of one which, after six months' captivity, " has not yet attached itself, but wanders about, like a restless spirit without a home." The suckers arc in this species very adhesive ; and in this vagabond condition it is not rare for the Anemone to moor itself temporarily, not by tlie base, but by these 96 SAGARTIAD^. organs ; sometimes by a few of the most anterior ones, when the base is thrown up at an angle, in a somewhat undignified fashion. Occasionally I have seen a specimen which had attached itself thus to a stone, or the side of a vessel, and had, by its own weight or other cause, removed a little from its attachment, — still fastened by two or three suckers, which were unnaturally stretched out to a length of the sixth of an inch, and a proportionate tenuity, resem- bling the suckers of a Holotliuria. Some observed facts indicate a considerable tenacity of life in this species. On the 5th of October last Iilr. West inclosed in a small tin canister three specimens with a little damp weed, but without water. The box was then addressed to me, and committed on the same day to the post-office at Leeds ; where, however, owing to the oozing forth of a slight wetness, it was detained. In the course of a few days I informed him that it had not arrived ; but my friend residing out of the town, and my letter arriving on Saturday evening, he was not able to obtain from the over-scrupulous postmaster the suspicious missive, until Monday morning, the 12th — a week (within five hours) of the animals imprisonment. Of course he expected to find them in a pretty advanced state of decomposition ; but^ on removing the lid, saw at once that the case was not hopeless. They were immediately treated to the long- foregone luxury of a bath of sea-water ; and though one of them was liors de combat, the other two recovered, and lived to bear the journey to Devonshire under better auspices. To the same kind friend I owe the possession of the lovely var. lilacina, and the following playful note of its endurings : — " It is one of the French consignment, and has led almost a charmed life. Soon after my letter to you [dated Jan. 27], written after their arrival, I fancied the water in one of the vases was becoming foul, and therefore THE CAVE-DWELLING ANEMONE. 97 removed all the animals save one — the most valuable, — which could not be found, and which I concluded was the source of the mischief. The vase stood, however, in an empty room till last Tuesday [April 20], — so you may guess the strength of the pickle, — when I emptied out the whole kettle of fish, and found Monsieur at the bottom. He is only the shadow of himself, and looks uncommonly seedy ; but is a character, nevertheless." While Avriting this article, I have had an opportunity, for the first time, of seeing the discharge of true ova from an Anemone. In a saucer, containing a Con-ynactis and some varieties of troglodytes, that was standing on my library table, I found, on the morning of the 28th of April, that there had been deposited during the night an even layer of pale brown substance on the bottom, so placed as to make it uncertain whether it had proceeded from the Corynactis or from one of the troglodytes. The mass was about as large as a fourpenny-piece. A little taken up with a pipette, and examined under a power of 500 diam., proved to be composed of ova, opaque, perfectly globular, varying from .0043 to .0051 inch (but the former was an unusually small one) : they were mostly very uniform in size, viz. .0050 inch. They had a clear well-defined edge, and not the slightest appearance of cilia. I removed the troglodytes to a clean part of the saucer (it was the beautiful orange var. auricoma), and after a few hours perceived that it was discharging more ova, which were streaming over its lower tentacles, as it lay on its side, but fully expanded. I therefore immediately transferred it to a straight-sided glass box for closer examination. As soon as it had expanded again after tlic shock of removal, which it did in a few minutes, I began to watch it. It was lying on its side, with its disk and expanded tentacles near the glass side, and facing my eye. Many of H 98 SAGARTIADiE. tlie tentacles, especially those wlilch were on the in- ferior side, were occupied with more or fewer ova, some having fifty or more, others half-a-dozen, others one or two. In each case they were rolling up the interior of the ten- tacle from the general cavity, and coursing to and fro under the influence of the lining cilia, sometimes accumulating temporarily at the tip, but never, so far as I saw, discharged there. On looking at the mouth, I perceived that the gonidial tubercles of one angle were brought into contact with those of the opposite angle, dividing the mouth into three tem- porary orifices, two lateral and one central. The lateral orifices, however, were at right angles to the ordinary line of extension. Through each of these lateral orifices ova were issuing, somewhat slowly, with an even motion evi- dently ciliary, for the most part not in contact with the sides of the tube, but coming up through its dark centre. As each came into view, and deliberately rolled over the edge of the orifice, it streamed across the disk, and over the face of the expanded tentacles, carried clear of all by means of the ciliary currents of these parts. The ova closely fol- lowed each other, generally in single file ; but occasionally two, or even three, were slightly agglutinated together. Perhaps on an average about three or four in a minute issued, but with many lengthened interruptions of the continuity. The process of egg-discharge did not continue long after I began to watch it ; though the accumulations remained in the tentacles. The next morning, those that had been deposited were for the most part disintegrated, resolving into an undefined mass of minute cells. A few only here and there retained their outline. During the next day or two, especially in the night, a few more were discharged, which were a little larger than the former, averaging .0060 THE CAVE-DWELLING ANEMONE. 99 inch. No result, however, followed the discharge, and they soon decomposed. Dr. Byerlj, however, has succeeded in rearing the young of this species ; but from ciliated germs, not from ova. Some specimens which he found numerous on the Leasowe shore of the Mersey, threw off many germs, which could be plainly seen through the skin at the base. These made their exit through " breaches of continuity in the outer envelope near its junction with the basal disk, and some- times through ragged apertures in the base itself." The germs were about as large as a pin's head, perfectly globular, and had a very sluggish motion. Three or four were put into a wide-mouthed bottle and stopped : after two months, one had developed a perfect Actinia, the ten- tacles being fully expanded. At the time of the record it had lived six months ; but having never been fed, it had not visibly grown.* Since the former observations were made,- I have proved this species (contrary to what has been asserted of the Actinoids) to be hermaphrodite. The variety in this case was the exquisite one I have named melanoleuca (see PI. V. fig. 5), a large specimen received about a week before fi'om Morecambe. On the 26th of May, this individual, on being put into fresh sea-water, instantly made it turbid. I took it out in the course of the day, and isolated it in a small glass tank of clear water. Presently this also became quite turbid, as if milk had been mixed with it, while clouds of the white fluid were seen floating about the animal. On the vessel being shaken, and again on my touching the Anemone, it contracted ; and, on each occasion, a stream of white fluid, almost as opaque as milk, shot up from the mouth, and slowly diffused itself in the surrounding water. * Edin. New Phil. Journ.; Jan. 1855. II 2 100 SAaARTIADiE. With a pipette I took up a drop from one of the diffusing clouds, and submitted it to the microscope. It was filled with millions of excessively minute, but vigorously motile atoms, clear and colourless, having an ovate body, and a slender tail, which wriggled their little tails, and rapidly oscillated from side to side, from the tail-tip as a 'point d'apjpui. This was the first time I had ever seen the sjper- matozoa (for such they assuredly were) of the Anemones. The next morning, the water still continuing turbid, I was about to pour it away, when I saw beneath the spot where the Anemone had lain, a thick layer of cream- coloured soft substance, well-defined in its outline. I took up a little of this and examined it. It proved to be a mass of ova. They agreed with those above described, being mostly quite globular (though a few were distorted) ; the majority closely alike in size, viz. .0058 inch ; but a few were manifestly smaller, and measm'ed from .0046 to .0048 inch. They were perfectly defined, with a distinct clear wall, and olive granular contents. When crushed with a graduated pressure to rupture, the whole contents of each ovum were seen to consist of a vitelline mass of minute oil-particles in an albuminous fluid, inclosed in a very thin vitelline membrane. In a few instances I detected the germinal vesicle with its germinal spot, some- times by its clearness when the ovum was flattened, some- times by its escape as a clear bladder from the ruptured membrane : but in many examples I could not find it at all. I removed the Anemone from the vase, leaving the ova alone, in hope that they would develop, but they all decomposed. I may add, that since then I have seen the like discharge of spermatozoa from a specimen of viduata. I refer with hesitation the Actinia elegans and A. ex- plorator of Sir John Dalyell to this species. The former THE CAVE-DWELLING ANEMONE. 101 he describes as of a reddish-brown or orange hue, with white (suctorial) spots, and well-barred tentacles ; the disk generally crossed with a white line. The latter has more of the ordinary aspect of a troglodytes. Sir John Dalyell observed in the latter (which he named explorator from the circumstance) the occasional elonga- tion of one or two tentacles, which we have seen to be a not uncommon phenomenon in this family. A specimen, not half an inch in diameter, exhibited two tentacles together, each of the length of an inch and three quarters. In general, the elongation took place at night. From its ordinary length of half an inch, each tentacle gradually became two inches long, thickened and distended to transparency. " It is then seen rising from among the rest, curving over to the opposite side of the disk, and as if searching around." After a while, it shrank back to its former state. Both of these (supposed) species were prolific. The latter produced sixty young in one night ; which were pure white, and large in proportion. Of the former, three indi- viduals, in October, produced infusorium-like germs, wliich were ovoid, and yellow-green in hue : some showed a long transparent horn in front, visible as the animalcule pur- sued a steady course ; behind it was open like a cap. They presented much disparity both in form and size. They swam actively by means of cilia. These germs continued visible throughout October, but, though carefully preserved, they led to no ultimate results.''^ Since the earlier pages of this article were issued, I have been favoured with an interesting letter from Miss Gloag, of Queensferry, Fifeshire, who has long been a successful cultivator of Anemones. I regret that limited space forbids my giving her communication in extenso : I am compelled * Rem. Anim. of Scotl. ; 226, 227. 102 SAGARTIADiE. to select and abridge. This lady finds troglodytes abund- ant on the Fife coast, in several varieties. Of these she specially enumerates Ulacma, of which eight specimens have from time to time occurred ; Hesperus, two specimens, and a third well-marked variety. One of the var. Hespervs has been in Miss Gloag's possession fifteen months : " the disk and tentacles are, if possible, ^oMter than snow ; only at the extreme tip of each tentacle is it quite black. It is a little gem of beauty." This variety frequently elongates two of its tentacles to the length of an inch ; when they lose their opaque white colour, and become transparent, the tip, however, retaining its black hue. The new variety is very showy : it has a bright orange disk, and perfectly black tentacles : thus reversing the colours of Eclipsis. It may be added to the catalogue, as var. (f). Pyromela. Some of my lady-readers may be glad to avail themselves of Miss Gloag's experience in collecting. " I find no difii- culty in digging the troglodytes out of the rocks or mud. The instruments I use are long, thick hair-pins [of iron- wire, ^^i\\ of an inch thick]. I am obliged to have them made for the purpose ; but they are splendid, and seldom fail to bring out the treasure unhurt. After getting my fingers nearly skinned, I bethought me of hair-pins. When I see a troglodytes that I wish to possess, I take one of these strong pins in each hand, and as quickly as I can I put the bent ends down the fissure as close as I dare to the creature : when I think I have reached its base, I work them gently but firmly towards each other, till I feel I have detached the Anemone, when it is easily lifted out either with the fingers or with the pins." More recently still, Mr. D. Robertson has sent me fi-om Cumbrae an exquisite variety, of which I was at first inclined to make a distinct species. It has the charac- THE CAVE-I)WP:LLlNa ANEMONE. 103 terlstic marks of troglodytes^ however, on disk and tentacles. Column marked with longitudinal green bands on a pellucid olive ground. Tentacles very short and conical, pellucid, with three transverse white bars, and three longitudinal sti'eaks of j&ne grass-green, reaching from the middle to the tip ; one frontal, broad, the others lateral, nanower. Disk pellucid olive, with a white lip. This variety I enumerate as ')(^. Prasinopicta. All the varieties of this species are hardy in confinement, and accommodate themselves readily to almost any kind of bottom. Many observations (some of which have been already mentioned) concur in showing its tenacity of life under circumstances, such as long imprisonment in a box, foul water, &c., that would prove fatal to other species. It requires attention, however, in the aquarium, to preserve it in condition. The more beautiful varieties, at least, speedily degenerate both in size and colour, if they be not frequently and regularly fed. They possess a healthy appetite, and will greedily devour fragments of raw fish or flesh, or of univalve or bivalve mollusca. Perhaps the best food for all Anemones, and one that can generally be com- manded, is the uncooked flesh of the oyster or the mussel. It should be cut into small pieces, and guided gently to the disk or tentacles of the Anemone, when fully expanded. If the animal shrink from the food, and contract; or if it be allowed to lie on the disk ungrasped, it will be of little use to allow it to remain: remove the fi^-agment, and wait a hungrier moment. If the food be gradually sucked in, its remains will be disgorged in the course of a period varying from a few hours to several days. Often it will appear little changed ; but it has performed its part, and must be carefully removed, or its decomposition will be likely to spoil the water, and kill, or at least render sickly, the living tenants. The frag- 104 SAGARTIADiE. ments may be removed by means of a bent spoon at tlie end of a stick, by boxwood pliers sold for the purpose, or by a glass tube closed at one end by the finger. The following somewhat extensive list includes all the British localities of this species that have come to my knowledge : — Wick, C. W. P. : Moray Frith, A. Rohertson: Coast of Fife, Miss [J. G.) Gloag : Frith of Forth, T. S. W. : Berwick Bay, G. J. : Cullercoats, R. Howse : Guern- sey, E. W. H. H. : Dover, J. R. Mummery : Hastings, a K. ; E. a Holwell : Seaford, E. W. H. H, : Selsey, G. G. : Weymouth, W. Tliompson : Teignmouth, R. a J. : Torquay, P. K G. : Falmouth, W, P. C. : Ilfra- combe, G. T. : Tenby, P. 11. G. : St. Bride's Bay, H. Owen : Menai Strait, W. A. L. : Mersey Estuary, Hilbre Island, E. L. W. : Birkenhead, J. Price : Morecambe Bay, F. H. W.: Man, E. Forbes; F. H. W.: Frith of Clyde, A, B, a : Cumbrae, I). R. : Belfast, E. P. W. coccinea. TEOGLODYTES. viduata. A STR^A CEA . SA GA RTIA DjE THE SNAKE-LOCKED ANEMONE. Sagartia viduata. Plate III. fig. 3; Yl. fig.U. Specific Character. Tentacles very extensile, very flexuous, indistinctly barred ; marked with an uninterrupted dark line down each side. Actinia viduata. Mullek, Zool. Dan. Prod. 231. No. 2799. Zool. Dan. ii. 31 ; pi. Ixiii. figs. 6 — 8. ? xmdata. Ibid. Zool. Dan. ii. 30 ; pi. Ixiii. figs. 4, 5. anguicoma. Price in Johnst. Brit. Zooph. 2nd Ed. p. 218 ; fig. 48. GossE, Devon. Coast, 96 ; pi. i. figs. 9, 10. ? lacerata. Dalyell, Rem. Anim. Sootl. 228 ; pi. xlvii. figs. 12—17. Isacmwa viduata. Ehrenbeeg, Corall. 34. Sagartia viduata. Gosse, Linn. Trans, xxi. 274 ; Tenby 363 ; Man. Mar. Zool. i. 28 ; Ann. N. H. Ser. 3. i. 416. GENERAL DESCRIPTION. Form. Base. Adherent to rocks, but readily detached. Considerably exceeding the column. Column. Smooth, slightly con'ugated in contraction ; with distinct suckers on the upper half. Substance fleshy. Form cylindrical; capable of great elongation, in the shajje of a tall and slender pillar. Margin tentaculate. Disk. Flat; the margin plane. Outline circular. Radii distinct; crossed by fine striae. Tentacles, About two hundred, arranged in five rows ; of which the first and second contain each twelve, the third tweuty-four, the fourth forty- eight, the fifth ninety-six. Those of the first row are longest ; but there is not so much difference between the rows in this respect as is the case with the preceding species : those of the first row, when fully extended, are longer than the width of the disk ; all are slender, tapered to a fine point, and very flexuous. They are usually carried either arching downwards on every side or sub-erect, and thrown into many irregular snaky curves. Mouth. Set on a low cone. Lip thin ; slightly furrowed. A contia. Emitted from various parts of the body, from the base to the summit, occasionally ; but very reluctantly, and in small quantity : short and slender. PLATE in P H . C D£L 'V COLOURS BY Vu D'CHES 12 SACARTIA TROGLODYTES. 4 5 3 S . VIDUATA 6 7.8 AOAMSIA PALLIATA . S PA L L I D A S PURA , THE SNAKE-LOCKED ANEMONE. 107 and is especially abundant on a sandy bottom in the laminarian zone, where it appears to be nearly or quite free, since it is washed ashore by hundreds after a gale. Variety. The only distinctly marked variety that I have noticed besides those diversities of the general tint that I include in o. Aleurops* — the mealy-faced condition above described, — is )3. Mdanops ;\ which has a broad well-defined band of deep black, crossing the disk and tentacles ; just as if a dash of ink had been struck across the whole flower ; including in its breadth three or four tentacles of each row on each side. The band crosses at right-angles to the line of the mouth ; the gonidial radii of which ai*e white. Sagartia viduata is somewhat liable to be confounded with troglodytes ; and some varieties of the latter approach it very nearly, especially when closed. But an experienced eye will seldom be deceived ; the tint of viduata is a warmer brown, generally mealy, or speckled ; that of troglodytes tends to drab, smoky brown, or olive, and is not speckled : the stripes of troglodytes, when present, are closer, generally naiTOwer, and rarely extend far from the base ; the suckers, too, which are so obvious and so constantly used in troglo- dytes, are inconspicuous in viduata, and rarely used for attachment. Then, when expanded, tlie peculiar pattern of each disk respectively does not merge into the other, though in troglodytes it is apt to become evanescent : the tentacles in this latter very rarely show obscure lateral lines; in viduata these marks are constant and conspicuous: the more slender form of these organs, and their tendency to assume irregular curves, in viduata, are also a very good distinction. I have no hesitation in identifying the species which we get so abundantly in Torbay, and which I have described above, with Mr. Price's anguicoma ; though that gentleman has not noticed the characteristic tentacle-lines. Its re- * "kXfvpov, meal ; ', Brit. Zooph. Ed. 2, 214 ; pi. xxxvii. figs. 1—3. Sagartia (?) chrysosplenium. GossE, Anuals N. H. Ser. 3. i. 416. GENERAL DESCRIPTION. Form. Base. Adherent to stones : slightly exceeding the column. Column. Smooth, studded with numerous scattered suckers (or loop- holes), resembling punctures. Form shortly cylindrical, becoming conoid in contraction. Disk. Smooth. Tentacles. Few, nearly equal in size, rather short, stout, and obtusely pointed. Mouth. Set on a roundish cone. Lips slightly puckered or imperfectly furrowed. Acontia. None have been observed. Colour. Column. Green, varying in tint from a bright pea-green, to that of a dark holly-leaf; marked with longitudinal bands of spots of a rich golden yellow ; a line of the same golden hue margins the base. Disk. Yellowish-brown ; gonidial tubercles bright golden yellow. Tentacles. Pellucid, sometimes nearly white, crossed by transparent green bars. Size. About an inch in height ; the diameter of the base and of the flower three-quarters of an inch ; that of the column five-eighths of an inch. Locality. The coast of Cornwall. Uoder-surfaces oi stones at extreme low water, and rock -pools. 120 SAGARTIAD^. To Mr. W. p. Cocks, of Falmouth, to whose scientific research our zoology is largely indebted, Dr. Johnston owed the admission of this species into his " History of British Zoophytes." I am under obligations to the kind- ness of the same gentleman, who has favoured me with some additional notes on the species, and a beautiful coloured sketch, which I have copied in Plate VI. The generic position of this beautiful form I indicate not without doubt. The short conical tentacles, crossed with bars, suggest a relationship with Tealia ; and this affinity had occurred to its discoverer, who in one of his MS. notes has added the words, — "allied to crassicormsy On the other hand, the marginal line around the base, and the gonidial tubercles being distinguished by a different colour Irom the rest of the animal, while agreeing inter se, suggest Actinia, of which these peculiarities are characteristic. There is, too, a well-known variety of A. mesemlryan- themum, which is green, marked with lines of yellow dots, and of this circumstance I ventured to remind Mr. Cocks. His reply was as follows : " In the A. mesemhr. var. the stripes and spots are as in clirysosplenium, but several shades lighter, and the labial tubercles, as well as the edging of the base, are bright blue ; the tentacles are uniformly of one colour, and are much more numerous, slender, and tapering." The character of the surface, however, decidedly separates it from both the Actimadce and Bimodidce. ^ly friend had at first written, — " Suctoreals numerous, scattered, embedded ;" but he afterwards added the following particulars : — " When I examined the body of the chrysosplenium with a lens of two inches' focus, the surface appeared to be pierced or punctured, and in appearance resembled a piece of smooth India-rubber when pierced with a pin ; not tlie slightest trace of tubercles apparent. The body when contracted THE GOLD-SPANGLED ANEMONE. 121 was as smooth as before ; not papillatcd ; and the apertures were nearly obliterated." Until I have an opportunity of personal examination, I therefore assign to the species a place in the genus Sagartia ; but I consider that it is one of the links which coimcct this with the neiG-hbouring families. On the history of this lovely little Anemone I can only quote what has already been published. " The old ones are solitary, not more than one on a stone : but there are two or sometimes four growing on the same stone. . . . I have had some in my possession for weeks, well supplied with water and air daily ; yet the tubercles and edging were obdurate, determined to keep to their original colour." I must hope that the zeal of our Cornish zoopliytologists will before long make me personally acquainted with the pretty Gold-spangle. The following localities are enumerated for it by Mr. W. P. Cocks: — Gwyllyn-Vase, Pennance, Ilclford, St. Ives. mesembryanthemum. chrysosplenium. crassicornls. ? on the subdivision of the genus sagartia. Fifteen species of the genus Sagartia have been described in the preceding pages ; and I possess information more or less definite concerning some five or six others, which I have not seen ; whose history therefore, in hope of a fuller acquaintance with them, I defer writing for the present, but expect to be able to give some account of them in an Appendix to this Volume. 122 SAGARTiAD^. The species already described appear to me to be divi- sible into four or five groups, wbicli cannot, however, be properly considered as higher than sub-genera, the charac- ters by which they are distinguished being too vague to afibrd a basis for generic rank. The most typical group, and that for which, should the genus be broken up, I would retain the name Sagartia, includes the following species : — mim'ata, rosea, ornata, ichthy stoma, coccinea, venusta, nivea. These have conspi- cuous suckers, discharge acontia freely, attain only a mode- rate elevation, expand the disk only a little beyond the column, are for the most part painted with gay colours, often in striking patterns, and in particular have the column usually of a rich warm brown hue. A group rather less typical than this, I consider to be formed by the following species: — spliyrodeta, 'pallida, pur a ; to which will probably be added most of the species which I defer to the Appendix. These have no con- spicuous suckers ; discharge acontia less and less abun- dantly ; are in general destitute of positive colour, and have a tendency to a colourless transparency. Nivea and sphyrodeta are the links which unite these two groups. Should a generic name ever be required for this group, I propose for it that of Tlioe, one of the sea-nymphs. {Hes. Th. 245.) Troglodytes, viduata, and parasitica may be associated as a group departing still more widely from the typical form. Their suckers are distinct, but minute ; their power of emitting acontia varying (feeble in trog. and vid., strong in paras.) ; their tentacles are generally streaked (only occasionally in trog.) with lateral longitudinal lines ; their column is marked with longitudinal bands of lighter and darker colour ; they have the power and habit of greatly elongating the column ; and manifest a proneness to become SAGARTIADiE. 123 and to continue detached. In these last two particulars tliey approach the Ili/anthi'dce. Coccinea and parasitica are the links of connexion between the first group and this, though not inter se. In the event of re-distribution, this group might receive the name of Cylista, from KvXia), to wallow about. Bellis will probably be considered by many as worthy of generic separation. The slenderness and elongation of its column when fully expanded, the salver-like expanse of its disk, the small size, great number, and crowded arrange- ment of its tentacles, the undulation of its margin, as well as the peculiarities of its colouring, isolate it strongly from its fellows. Miniata, from tlie undulation of its margin, ?indi parasitica, from the craterine form of its disk, and the multitude of its tentacles, are connecting links with it in their respective groups ; while hellis looks, as has been already intimated, towards other genera, as Actinoloha, Aiptasia, &c. It might be called Sci/phia, from (tkv(J)o<;, a drinking-bowl. Finally, chrysosp>lenium is the most aberrant form that I have included in the genus, so far as I am able to judge of its peculiarities without personal inspection. Its affinities I have just enumerated. If I had isolated it generically, I would have named it Chrysoela, " that which is studded with golden nails," from 'xpva6isJ:. Thin and membranous, greatly expanded as a broad concave cup. Outline circular, but lax, and often undulate, or even revolute. Radii strongly marked. Tentacles. Arranged in four rows : the first row containing six, set at half radius, remote from each other, and from the second row ; when fully extended, an inch and a- half long ; the other rows diminish gradually, the outermost being about half an inch in length. All, especially those of the first row, very lax, flexuous, frequently thrown into sinuous curves, perforate with a large terminal aperture. Mouth. Lip thin. Throat irregularly fm-rowed. Stomach-wall occa- sionally protruded. Two gonidia, scarcely rising into tubercles. THE TRUMPLET. 153 Aconfia. Abundant; copiously protruded from the mouth or from wounds ; occasionally also, but sparingly and reluctantly, from loop-holes. Colour. Column. Warm orange-buff, richer at base, blending into a bluish-black hue where it expands into the cup-like disk : the entire length marked with longitudinal faint lines, indicating the insertions of the septa. Disk. Dark iron-grey, becoming ashy towards the centre : each radius bounded by lines of pale greyish blue. Tentacles. Sepia brown ; but seen under a low magnifying power to be of a warm umber, more or less decided, minutely mottled with darker : the colour usually softens into white at the extreme tip of the tentacle. Mouth. Lip and throat ash-grey. Size. When fully extended the column is sometimes four inches in height, and from an eighth to three-fourths of an inch in diameter. Expanse of flower about three inches. LOCALITT. The Channel Islands and Cornwall. Under surface of stones at low- water mark ; deep water. In the latter part of Marcli of the present year (1858), Dr. Hilton of Guernsey found on the shores of that island, and kindly sent to me, several specimens of an Anemone new to him, and equally so to me. The locality, the colour of the disk, and much in the form and contour of the animal, at once suggested the Actinia hiserialis of Edward Forbes, for which species I was on the look-out. Not long after this, I was indebted to the courtesy of Mr. Sydney Hodges, the Secretary of the Royal Cornwall Polytechnic Society, for other specimens of the same species from Falmouth, which were sent under the persuasion that they were A. hiserialis. Still so much diversity existed between the specimens (those from Guernsey and Falmouth perfectly agreeing inter se) and Forbes's description, that I could not but consider the point very doubtful. At the 154 ANTHEAD^. same time, if I were quite sure that the specimens in my possession were identical with that described by Forbes, I should be compelled to reject his specific name as involving important error. The tentacles can in no sense be called biserial : there are four distinct rows, which are regularly graduated in length, and which show no other distinction ; the appearance indicated by his figure (supposing it to represent the present species) being quite illusory. But on examination I found peculiarities in the animal, which required its generic separation. The most promi- nent of these were its form, the length and flexuosity of its tentacles, and its permanent expansion. In two of these characters, as well as in several other points which I shall presently notice, it manifested so close an affinity with Antliea cereus, that I should not have hesitated to include it as a second species in that genus, had not the presence of acontia, and their extrusion through cmch'des, indicated a nearer approach than is made by that species to the family Sagartiadce, I therefore ventured to describe it under the name of Aiptasm amacha ; the generic appellation referring to its permanent expansion, from del, always, and Trerao), to expand ; and the specific to the patience with which it bore pushings and pokings without unsheathing its weapons, from a, priv., and ixd')(oixaL, to fight. The English name refers to its trumpet-like form. Subsequently, however, I have found that the species has been well described and figured by Mr. W. P. Cocks, in his valuable List of the Actinia3 of Falmouth, publislied in the Report of the Cornwall Society for 1851, under the title of Anihea Couchu, which specific name takes prece- dence of mine. It is true, in his description, mention is made of three white lines extending longitudinally up the column, of which no trace exists in my specimens ; but by a coloured drawing with which Mr. Cocks has THE TRUMPLET. 155 favoiu'ed nic, I perceive that these lines were not equidistant and symmetrical, but all close together on one side ; a cir- cumstance which at once shows their presence to have been accidental, and of no value as a character, while in every other respect, even in the most minute points, his drawing and description agi*ee with my specimens. At the same time it is interesting to observe that Mr, Cocks did not consider his specimens as the A. hise- rialis / for he describes this separately in the same list, as "not uncommon." Mr. S. Whitchurch, of Guernsey, informs me also that there exist at Herm Actiniee, which are commonly spoken of as " the yellow and blue varieties of A. hiserialis" so that a species may yet turn up which will justify the description of that form ; and at all events it would be rash at present to accuse so excellent a zoologist as E. Forbes of incorrectness, on the known premises. The present species seems to be found in considerable abundance in its recognised localities, especially Guernsey and the contiguous little isle of Herm ; appearing chiefly to affect the under sides of loose stones at the level of lowest tide, to which it adheres with a very slight attachment. When the animal has been some time deprived of water, — as in transmission by post, — it has a very abject appear- ance, shrivelled almost to shreds of blackish membrane, which, when immersed in sea-water, lie helplessly on the bottom, ragged and hideous, discharging brown pigment. Presently the tentacles begin to fill, and one by one to assume plumpness, and to move slowly; and gradually, after some hours, the animal presents a more life-like appearance. The extremities of the tentacles remain collapsed, and apparently withered, long after the greater part of their length has become plump, the division between the one and the other condition being abrupt. The distension begins 156 ANTHEAD^. from the "bottom of the tentacle, and passes up very slowly, occupying many hours. When once it has adhered, and recovered its health, its elegant postures and forms, and its remarkable versatility, make the Aiptasia an interesting occupant of the aquarium. It marches from stone to stone, and around the walls of its tank, frequently creeping to the top of the water, and ex- panding its base upon the sm'face, almost or even quite floating, while the disk and tentacles, widely expanded, are suspended below in mid-water. In these habits we see a close resemblance to Anthea cereus, as also in the texture of the body, and in the tentacles, which in both genera are lined with a profusion of dark-brown pigment-granules, which are readily separated. Occasionally I have noticed that it has the power of adhesion to foreign bodies by the general sm'face of the column ; a habit common to several of the Hycmthidce, (as the Halcampce, for example,) but which, I think, is not possessed by Anthea. When in full vigour it towers up to the height repre- sented in the figure, when, with its ever-twisting tentacles and semi-pellucid tapering column, it is a very elegant object. When thus greatly elongated, the loop-holes are plainly seen with a lens. I have been able to thrust the point of a fine needle into one and another of these orifices, without meeting any resistance ; and, by using great care, without the animal's being conscious of it ; when it did feel the touch, however, it suddenly contracted. Under these and similar irritations, it contracts in lengtlv by successive spasmodic jerks, but makes no attempt to roll in the margin of the disk, or to hide the tentacles in any way. Yet it has the power of involving the disk. It feeds greedily, tlirowing the margin in folds over the mouth. After a full meal, I have seen it take the shape of a ripe THE TUUMPLET. 157 fig, the lower half of the column greatly attenuated, while the upper half was as greatly distended, but with a con- striction between the swollen part and the trumpet-like expanded disk. The appearance of the animal varies exceedingly. (Some- times it lies utterly flaccid and withered, appearing as if quite dead ; not contracted, but emptied of its water, and the lax membranes collapsed. Then, especially at night, it swells up, erects its broad disk, and stands up like a flower after a shower, w4th a noble appearance. At such times the tentacles are sometimes much distended, pre- serving their regular conical form, and are of a much lighter hue. They are then occasionally constricted with numerous close rings, and take snaky curves. At times the long inner tentacles are curled in ram's-horn coils over the mouth. One of the individuals in my possession has forked tentacles : one of these organs bifurcated at about half its length ; another divided near the tip into three, of which one ramification extended on each side horizontally, and the third, which was much smaller, followed the original direction of the tentacle. This tendency is common to Anthea cereus, and to Sagartia viduata. That our Aiptasia is tenacious of life will appear from the following curious rencontre, to which a specimen in the possession of Mr. Iloldsworth was subjected. " Two days ago," writes my friend, " on making my customary morn- ing's inspection of my family, I missed the Aiptasia. A diligent search in all the crevices of the rock-work having failed to discover it, I began to suspect foul play ; and after administering the stomach-pump, in the shape of a stick, down the throats of some fine specimens of hellis, I suc- ceeded in dislodging the poor lost sheep, in a shapeless mass of membrane and acontia, which were largely ex- posed ; but the animal was too much injured to enable me 158 ANTHEAD^. to say whether these were emitted in the usual manner, or exposed by a rupture of the integuments. The invalid was removed to a separate jar of sea-water, (the best hos- pital for sick Actinice,) and it is now attached to the glass, which is, as you know, a good symptom, but I can hardly pronounce it to be as yet quite convalescent." Some weeks after I received tidings that the invalid had " perfectly recovered from its involuntary visit to the interior of helh's.^^ As in Anthea, the non-retractile character is not absolute in our Aiptasia ; Mr. Holds worth has repeatedly seeu it with the tentacles quite concealed , the body globose and very pellucid, and the orifice long and linear. The only localities I am as yet acquainted with for Aiptasia Coucliii are the following : — Bordeaux Harbour, Guernsey, J. D. H.: Herm, 8. Whitchurch : Gwyllyn Vase, Helford River, W. P. G. : Falmouth, S. Hodges. The species before us forms a beautiful link of con- nexion between the Sagartiadce and the Antheadce, pre- senting very marked resemblances to S. helh's and S. viduata in the former, while the preponderance of its characters allies it with Anthea cereus. S. bellis. S. viduata. H. chrysanthcllum. A. Couchii. [A. rhodora.] A. cereus. 159 GENUS II. ANTHEA (Johnston). Actinia (Ellis). Anemonia (Eisso). Entacmcea (Ehuenb.). Base slightly adherent ; broader than the column : its outline irregularly undulate. Column forming a 1o\y thick pillar; the summit expanding ; the margin notched, and bearing budding tentacles, with no distinct parapet, or fosse. Surface cancellated by the intersection of longitudinal furrows, and transverse wrinkles. No suckers, warts, nor loop-holes. Substance pulpy. Disk membranous, very expansile, undulate at the margin. Tentacles numerous in several rows, sub-marginal, very long, lax, irregularly flexuous ; scarcely retractile. Mouth elevated on a low cylindrical wart. Acotitia wanting. The genus contains but one British species, A. cerens. ASTRjEACEA, antheadje. THE OPELET. Anthea cereus. Plate V. Jlr/. 2 ; VI. fg. 9, Specific Character. Tentacles smooth, consimilar. Actinia cereus. Elli3 and Solander, Zooph. 2. Rapp, Polyp. 56 ; pi. ii. fig. 3. Grube, Actiu. 11. sulcata. Pennant, Brit. Zool. iv. 102. Anemonia edulis, Risso, L'Eur. M^rid. v. 289. Anthea cereus. Johnston, Brit. Zoopli. Ed. 1, 221. Ibid, Ed. 2, 240 pi. xliv. Cocks, Rep. Cornw. Pol. Soc. 1851, 10 pi. ii. figs. 23, 27. Gosse, Man. Mar. Zool. L fig, 37. TuGWELL, Man. Sea-Anem. pi. vii. Anemonia sulcata. Milne-Edwards, Hist. Nat. Corall. i. 233 ; pi. C. i. fig. 1. GENERAL DESCRIPTION. Form. Base. Adherent to rocks, but with a very slight tenacity; dilated considerably beyond the medium diameter of the column ; the outline generally undulate, often forming irregular lobes. Colwmn. Shaped like a dice-box, or a piUar, which is much dilated above and below; when expanded, the diameter usually exceeding the height ; the margin greatly overlapping, crenate, with numerous rounded teeth, some of which are usually seen to be rising into incipient tentacles. Surface marked with numerous longitudinal furrows, which are correspond- ent with the insertions of the septa, and whose upper extremities alter- nate with the margin.al crenations. In the ordinary state of extension, there are also very numerous and minute transverse wrinkles, which cross the fun'ows at right angles. Skin imperforate, and destitute of any adherent power. Substance pulpy, or bladdery. Dish. Thin and membranous, greatly expanded in the form of a broad, shallow saucer, with the margin lax and undulate, often revolute. Radii strongly marked; two gonidial radii often more conspicuous than the others. THE OPELET. 161 Tentacles. About one hundred and eighty, arranged in four rows; of which the first, second, and third contain thirty-six each, the fourth seventy-two. These numbers are, however, only approximative ; for the crowded condition of the tentacles, the irregularity of theii- serial arrange- ment, and the ever-varying distension of the disk, make it almost impos- sible to count, much less accurately to distribute them into rows. They are sub-equal in length ; but what diflerence there is, is a diminution out- wards. All are very long ; those of the first row sometimes upwards of four inches in length, and more than doubling the diameter of the disk : thej' are slender, and taper uniformly to the tip, which is obtuse and as if ti-uncate, or sometimes slightly enlarged ; very lax and flexuous, they are almost always thrown about in irregular, snaky curves, intertwisting in all du'ections. Their entire surface is very adhesive. Month. Seated- on an elevation, which more commonly takes a cylin- drical than a conical form ; sometimes large and tumid, at others small : lip rounded. Cor.ouR. Column. Pale wood-brown, umber-brown, purplish-brown, or flesh- colour, marked with numerous narrow bands alternately paler and deeper, which correspond to the furrows ; sometimes the lighter bands are dull light lilac, with darker edges. Disk. Dark bistre-brown, or umber-brown ; the gouidial radii often a lighter shade of the same colour. Tentacles. Light pea-green or emerald-green, opaque, with a rich, satiny lustre ; the extreme tips, for about one-fourth of an inch, rich lilac-crimson ; the green gradually blending into the lilac, and the latter hue increasing in brilliancy to the extremity. A faint whitish line usually runs along the back of each tentacle throughout its length. Mouth. Lip agreeing with the disk ; throat ash-brown. Size. Large specimens are sometimes seen covering an area of six inches in diameter, with their tentacles four inches long ; the disk two inches, and the column the same, in diameter. Locality. The western and southern coasts of Europe generally. Shallow pools between tide-marks, and littoral rocks. VARIETIEa. a. Smaragdina. The state described above, with rosy-tipped green tentacles. M 162 ANTHEAD^. $. Sul2yhurea. As the preceding, except that the tentacles are pale delicate lemon-yellow, with the slightest shade of green ; lilac-tipped. (Herm : hores, or tuherculcs calicinaux, and which I have named marginal spherules. These are hollow spherical vesicles, with thin walls, situ- ated near the edge of the disk, on the inner side of a sharp margin, and outside the exterior row of tentacles. For the most part, if not always, these organs are of bright or vivid coloui-s, generally differing from those of the other parts ; and hence they are conspicuous, and impart a peculiar aspect to the physiognomy. What function in the economy of the animal is per- formed by these bead-like spherules is as yet unknown, though that they play some important part can scarcely be doubted. In our Actinia mesenibryantliemum, I have ascer- tained that the walls are almost wholly composed of cnidce, of nearly linear form, and about "0025 inch in length. The inclosed thread is with difficulty seen, both before and after extrusion ; it is, however, of considerable length. From this structure I have conjectured that the marginal spherules in this family may represent — functionally, not liomo- logically — the acontia of the Safjartiadce, which are here wanting. Sir John Dalyell has an extraordinary observation to the eflfect that each of these spherules " is pierced by 172 AGTINIAD^:. an orifice, whicli opens and dilates occasionally, some time after the animal has fed." * This fact, however, if fact it be, is confirmed hy no other observer that I am aware of. The integuments of the column seem to be imperforate : this is certainly the case in the genus Actinia; and in Fhymactis, though the evidence is of a negative character, there is no reason to believe that it is otherwise. The character of the surface varies according to two very dis- tinct types. In Actinia it is remarkably smooth, soft, and fine ; in Pliyinactis it is roughened with strong and coarse warts. These diversities manifest the osculant position of the group; for while the former genus shows a close affinity with the Antheadce^ the latter takes no less firm a hold upon the Bunodidm. It is interesting to find an exotic species (the A. j)rimula of Drayton t) with marginal spherules and a smooth skin, which emits long filaments from the mouth. Here, then, we have the representative of the Sagartiadai. As regards Geographical Distribution, the Family is extensively spread ; the two principal genera representing it respectively in the northern and southern hemispheres. Actinia ranges from tlie lied Sea, through the Mediter- ranean, over the western coasts of Europe, and the isles of the North Atlantic. Fhymactis is widely distributed over the shores of both sides of the South Pacific, and of the South Atlantic, reaching a little way north of the Equator, being represented by no less than three species at the Cape de Verd Isles, where, it is curious to observe, it meets • "Rare Anlm. of Rcotl. ; 203, t Daua, Zooph. 134 : pi. ii. figs. 12—15. At least it is thus represented in one of Mr. Dana's beautiful figures, though no allusion is made to the peculiarity in the text. M. Milne Edwards has made of it his genus Nemactis, but with a wholly gratuitous assumption of characters. ACTINIADiE. 173 with the beautiful representatives of the northern form, — Actinia tabella, and A. graminea of Dana. ANALYSIS OF THE GENERA. Skin smooth. Possessing acontia {Not British) Nemactis. Destitute of acontia Actinia. Skin warted {Not British) Phymactis. 174 GENUS I. ACTINIA (Linn.). Entacmcea (Ehrenberg). Base adhering to rocks ; considerably exceeding diameter of column. Column pillar-shaped, usuall}^ much wider than high ; margin greatly developed, smooth, separated by a broad, but shallow fosse from the outer tentacles ; a circle of vividly coloured spherules projecting from the inner surface of the wall of the fosse ; surface delicately smooth, imperforate, non-adhesive ; sub- stance fleshy. Bisk greatly expanded and overarching ; concave. Tentacles in several rows ; moderately long ; nearly equal ; unicolorous ; wholly retractile. Mouth set on a protrusile cone ; two pairs of goni- dial tubercles, brightly coloured. We possess but a single British species, A. mesem- bryanthemum. ASTR^ACEA. ACT IN I A D^. THE BEADLET. Actinia mesemhryanthemum. Plate VI. figs. 1 — (■. Specific Cliaracter. Colours of column not arranged in transverse zones. Actinia equina. mesembri/anikemum. hemisphccrica. rufa. purpurea, corallina. margaritifera. Forskdlli. ccrasum. ckiccocca. ? tahella. fra/jacca. ? yraminea. Entacmaa mesembrjjnn- ) tJiemum et E. rufa. \ Linn., Syst. Nat. 1088. Mvller, Zool. Dan. Prod. 231. Milne-Edw., Corall. i. 238. Ellis and Sol., Zooph. 4. Rapp, Polyp. 52; pi. ii. fig. 1. Grube, Actin. 10. Couch, Corn. Fauu. iii. 74 ; pi. xiv. fig. 1. Johnston, Brit. Zoopli. Ed. 2. i. 210; pi. xxx\-i. figs. 1 — 3. Dalyell, Eare Anim. of Scotl. ii. 203 ; pi. xliii. and xlvii. fig. 1. Cocks, Rep. Cornw. Pol. Soc. 1851. 5. pi. i. figs. 7—11, 15. GossE, Aquarium, pi. ii. : Tenby, 370 : Linn. Trans, xxi. 274 : Manual Mar. Zool. i. 80 ; fig. 43. Tugwell, Man. Sea-Anem. 52. Pennant, Brit. Zool. iv. 104. Ibid. Ibid. iv. 105. Mulleb, Zool. Dan. i. 23; pi. xxiii. figs. 1 — 3. Lamarck, Anim. s. vert. iii. 67. RoGET, Bridgew. Tr. i. 198 ; figs. 86, 87. CnviEB, Tabl. ^l^m. 663. Risso, L'Eur. Mdr. v. 285. Templeton, Mag. Nat. Hist. ix. 304 46. fig. 50. Cocks, JoHNST. Br. Zoopli. i. 213 ; fig. Rep. Cornw. Soc. 1851. 5. M-Edwards, Corall. 241. Dalyell, Rare Anim. Scotl. ii. 219 ; pi. xlvi. fig. 1. Cocks, Rep. Cornw. Soc. 1851. 5. pi. i. fig. 14. JoHNST. Br. Zooph. i. 214 ; pi. xxxvi. figs. 4—6. Dana, Zoophytes, 132 ; pi. ii. fig. 9. Toowell, Man. Sea-Anem. 53 ; pi. 5. Dana, Zooph. 132 ; pi. ii. fig. 10. Ehrenb. Corall. Roth, Meeres, 36. 176 ACTINIAD^. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; considerably exceeding the column, outline often long-oval. Column. Delicately smooth, without much excretion of mucus, wholly imperforate, and non-adhesive. Substance fleshy, approaching to pulpy. Form hemispheric in button, a low column in flower, much expanded at the summit. Margin strongly developed, with a smooth, sharp edge, bounding a wide but shallow fosse, within which are seated a single series of numerous spherules. Disk. Slightly concave, smooth ; the radii faintly marked. Tentacles. About two hundred in full-grown individuals, arranged in six rows thus : — 6, (J, 12, 24, 48, 96:= 192 ; moderately slender, shoi-ter than the diameter of the disk, sub-equal ; flexuous, usually carried ai'chiug over the margin. Mouth. Elevated on a blunt cone. Colour. B(tse. Edged with a narrow line of bright blue. Column. Liver-brown. Marginal Spherules. Brilliant azure. Bisk and Tentacles. Dull pellucid crimson. Mouth. Rich crimson. Oonidial Tubercles. Blue. Size. Large specimens sometimes cover with their _base an ai'ea four inches long by two wide, attain a height of about an inch, and expand to a flower of three inches in diameter. Locality. The Mediten-anean and Atlantic shores of Europe, universally distri- buted, on exposed rocks, from half-tide, or even a higher level, to low- water mark. Varieties. The characteristic colours of the species are crimson and green. The extreme of variation on either hand is produced by either of these two colours prevailing so as to exclude the other. But many intermediate gi-ades are found, either by the blending of the two hues into some inter- mediate tint of olive, brown, or liver-colour, or else by the separation of the two into a pattern of spots on a different ground, or, where the green THE BEADLET. 177 hue exists alone, by a separation of its constituent elements, blue and yellow. We may distinguish the following varieties : — a. Hepatica. The liver-brown condition above described, which is the most common (fig. 2). * Approaching the red. i8. E libra. Column dark crimson ; disk and tentacles as before. In youth this and the following variety are of a pellucid light crimson (fig- 5). y. Chiococca, Column rich scarlet ; basal line flesh-colour or non- apparent ; disk and tentacles full crimson ; spherules pure white (fig. 7, labelled A. chiococca). The A. Forskdlll of the Red Sea, the A. cerasum of the Scottish Coast, the A. chiococca of St. Ives and other parts of Corn- wall, must be considered as belonging to this variety ; nor can I separate from it the A. tabella of the Cape Verd Isles, except that this approaches the var. fi. ** Approaching the green, 5. Umhrina. Column, disk, and tentacles, a yellowish umber-brown ; spherules (as in all the following) azure; basal line (as in all of this section) blue (fig. 3). e. Ochracea. Column, disk, and tentacles orange-bufiF. J". Olivacea. Dark olive. ij. Glauca. Pellucid bluish green ; tentacles pale greenish blue (fig. 1). 0. Prasina. Fine leek-green ; tentacles the same, pellucid. *** Colours interrupted. 1. Opora. Leek-green, with longitudinal broken lines of light green or pure yellow ; spherules and basal line blue (fig. 4). K. Tigrina. Red, streaked with yellow (Tugwell). A. Fragacea, Liver-coloured, or dark red, studded with numerous spots of light green ; no basal line. Attains a very large size (fig. 6). The most marked of the above varieties is undoubtedly the last, — the Strawberry, as it is familiarly named. Its constancy of colour and pattern, its tendency to an ovate form, and its great size, distinguish it from its fellows ; and yet I cannot, after much consideration of the subject, in the presence of the animals themselves, convince myself that it is entitled to specific distinction. I have found specimens in which the spots were small and crowded, others in Avhich they were large and scattered, others in which they were small and scattered ; sometimes the spots are portions of lines irregularly interrupted, and not seldom considerable regions of tlie surface are quite des- N 178 ACTlNIADiE. titute of spots. The marginal spherules are sometimes large, sometimes minute ; now azure, then pearly white. A more marked character is the absence of the coloured line bounding the base; but I am not sure that this is constant. I am glad to fortify my own opinion by that of so acute an observer as Mr. Holdswortli. He writes me as follows : — " I have now seen so many connecting links between the typical mesemhryanthemum and the fragacea, so called, that I am convinced they are one and the same species ; although I have not arrived at this conclusion without devoting considerable time and attention to the subject." Of the supposed species, cMococca, cerasum, and Fo7's- l-dlli, for these are assuredly all the same thing, I would speak with some deference, owing to my having never seen the form in its perfect type, though I have no doubt of its identity witli the present subject. Sir John Dalyell, though he gave it a specific name, summed up his obser- vations with the following words : — " On the whole, I am disposed to view it as a variety of mesemhryanthemumy Nor do I see how he could do otherwise ; for he tells us that, of his cerasum, which was very prolific, all the young- were red hit one, which, red at first, became at five months old j5a?e green. This bred, and all its ])rogeny were green ; though it had upwards of a hundred descendants before it was two years old, and continued to breed for five years more. It is but fair, however, to add, that Mr. W. P. Cocks, who constituted chiococea a species, and to whom I am indebted for the beautiful drawing which I have copied in my Plate VI. fig. 7, retains his opinion. From one of his letters to me, I cite the following interesting notes : — "The A. chiococea is certainly a good species. I have THE BEADLET. 179 never found it associated with the A. mesemlri/antliemum, and rarely more than one or two in the same locality (though explored ^by me in Cornwall), with one exception. On the under surface of some very large stones used for making a pier near the north-western extremity of the town of St. Ives, I found several colonies of the in- teresting creatures in full health, enjoying the blessings of freedom in a nook not often disturbed by anything but the rough and boisterous waves from the North Channel. About twenty feet from this spot, and nearer high-water mark, the under surfaces of the stones forming a portion of this abortive construction were covered with old and young members of the beautiful varieties of the A. mesem- hryanthemum, dark bottle-green with yellow dots, dark green with yellow stripes, claret with yellow spots, yel- lowish green, light ochre, amber, scarlet, &c. The blue beaded rim and blue fillet at base were displayed by each member of this group. A specimen of the A. chiococca, which I had in confinement for more than twelve months in my experimental jar, furnished me with a batch of young ones, — all were true to colour and markings." This, how- ever, can by no means outweigh the positive evidence on the other side furnished by Sir J. Daly ell. Nor can the A. margarUifera of Templeton be allowed any higher rank. The flattened, rigid, corrugated con- dition on which he relied for a specific character, I have not unfrequently seen in individuals, which, in the course of an hour or two, Avere swollen out to the softness and plumpness normal to the species. Mr. Cocks comes to my aid here with an interesting narrative of two specimens which he found in a condition exactly corresponding to Mr. Templcton's description of margaritifera. He was at once convinced that sickness was the cause of their pecu- liar flatness and attenuation, and the shrivelled tesselated n2 180 ACTINIADJi. character of their skin. He treated them accordingly, and in a few days they assumed the usual plump condition. Facts seem to show that even the same individual is liable to considerable change of colour. Mr. Cocks tells me that from some hundreds of experiments he has ascer- tained that " the colour is materially changed by diet, good or bad ; by water, pure or impure ; by attention or neglect; by over-feeding or starvation." And Mr. E, L. Williams, jun. has favoured me with still more precise statements on this very species. He observes : — " A. me- sembryanthemum does change. Bright green in two months has got to dark olive in my tank ; bright amber to dark brown ; brown with vertical yellow spots or dots has lost these markings." Characteristic as are the marginal spherules, they are subject to some irregularities. I found a large specimen of the deep olive variety, which had on the exterior of the margin two azure tubercles ; — one of them round , well defined, and in no respect distinguishable from the intra- marginal spherules, — the other somewhat less so. Below these, scattered down the side of the column, were four or five more blue warts ; more in*egular in form and shape, but still well defined, and perfectly similar in their azure hue to the spherules. I subsequently obtained a second specimen with exactly the same peculiarities. On the other hand, a specimen of the same variety — which was sent me from Cumbrae by Mr. D. Robertson about six months ago, and is still in my possession — has never showed the slightest trace of spherules, though in every other respect perfectly normal; the basal line and the gonidial tubercles being of the usual azure hue.* It is * " M. Haime has remarked that these bourses chromatophores, or calycine tubercles, are to the number of 18 in those individuals which have not yet developed the tentacles of the 5th cycle ; of 24 in those which have 5 or 5J cycles, and of 48 in those which have 6 cycles com- THE BEADLET. 181 by no means unusual to see examples of the red varieties, in which the spherules are pale red, — the blue pigment being defective. The name Actinia, originally applied to the whole race of Sea- Anemones, is derived from aKTiv, a ray ; the specific appellation, mesemhryantlieraum, is the name of the fig- marigold, so called from its opening at noon, [fiearj/u-^pia, = /xiao^, i)/ji€pa, mid-day) : the term beadlet alludes to the marginal beads. As no species is more abundant, nor more easily pro- cured than this, since it affects the most exposed rocks, and does not seek the protection of hollows, so none is more easily reconciled to captivity, and few are more beautiful. It requires no special treatment ; a surface for the support of its base, and water sufficient to cover it, are enougli ; nor is it essential to its existence that the latter should be very pure, for it will continue to drag on life when its fellows have died out. Yet few species more immediately resent negligence of this kind, or more grate- fully express their appreciation of a pure and limpid element. Widely as the species is distributed in a state of freedom, we scarcely ever see it except where the water is habitually clear. It is a curious fact, for which I am indebted to Mr. E. L. Williams, jun.. that "the Mersey estuary is the only place on our coasts in which he has not found this species ;" which he attributes to the foul- ness of the water. This absence would be less remarkable, were it not that Tealia crassicornis is abundant there ; but Actinia is clean and Tealia is dirty in its habits. In the plete; that is to say, in the large individuals whei-e 192 tentacles or there- abouts may be counted. He has recognised also that these pouches communicate directly with the sub-tentacular chambers of the first cycles ; and that they contain little muscular fibre, but carry navicular thread-cells of various forms, and of which the interior thread is indistinct, together with transparent vesicles, and pigment-globules " —Mi i,ne-Edwahds, Hint. Corallairet, i. 240. • 182 ACTINIAD.E. neighbouring estuaiy of the Dee, the former is common, as usual. With ordinary attention the pretty Beadlet will attain a good old age in captivity. A veteran, whose portrait is given by Sir John Dalyell, had lived in his possession twenty years (in 1848), and was judged to be not less than seven years old when he obtained it. At Sir John's death the specimen passed into the hands of Professor Fleming, and it was not many months ago that I heard of it as still surviving. If it is alive now, it must be approaching forty years old. This individual was the prolific parent of 334 children. A second specimen had lived about fourteen years under the worthy baronet's care. The species is generally viviparous, producing abun- dantly ; but sometimes it gives birth to ciliated, shapeless embryos, on which tentacles appear in about ten days. Copious details of high interest on tlie embryology and general economy of this Anemone are fm-nished in the magnificent volumes of the eminent Scottish naturalist- It is superfluous to give a list of habitats for this species : since it occurs all round the coasts of England, Wales, Scotland, and Ireland, wherever there is rock enough to afford it standing ground. The Actinia Cari of Delia Chiaje (the A. concentrica of Risso) appears to be a second species of the genus ; at least in none of the recognised varieties of ours do we perceive an approach to tlie pattern of colouring, — a series of concentric zones or bands, — by wiiich tlicit is marked. A. cereas. Mesembryantiiemum. [Nemactis.] [Phymactis.] Actinoloba. Bunoles. 183 FAMILY A^— BUNODID^. 1 ]3ropose to include iu this family all those species, the surface of whose column is studded with persistent tuber- cles, and which are not provided with marginal spherules, nor with perforations of the integument. In some instances, certainly, — perhaps in all, — these excrescences have the faculty of adhering with force to foreign bodies ; and thus they agree in function with the suckers of many of the Sagartiadce ; there is this difference, however, that whereas in those, the margins of the suckers do not rise above the general level when inactive, in these the tubercles are always well developed, and are particularly prominent in those species in which the adhesive function, if it exists at all, is feeble and rarely exercised. The integuments and muscular coats appear to have a much greater density than in any of the previous families, and the movements of the animals manifest a higher degree of vigour, and even of intelligence. The tentacles are generally short, thick, and conical. The typical and sub-typical genera — Bunodes and Teah'a — appear to be represented by species which are scattered over the seas of the world, and are for the most part littoral : the genera Cystactis and Echinactis are confined to the southern hemisphere : and the aberrant genera, Bolo~ cera, Honnatltia, and Stomph'a, inhabit the deep water of the British and Norwegian seas. ^K\ 'SIS OF THE aKNEHA. Tobi'iW,'iA^ . . Fcklnactif. Disk !>ud tentacles uot rotraotilo Boioceni. Tnberoles obsolete Stomphia. 185 GENUS I. BOLOCERA (Gosse). Anthea (Johnston). Base adherent : not much exceeding the cohimn. Column pillar-like, the diameter and height sub- equal. Surface generally very smooth, studded with small warts, remotely scattered. Substance "fibro- cartilaginous" {JF.P.C). Disk smooth, circular in outline, not overlapping the column. Tentacles short, thick, constricted at foot, obtusely pointed, longitudinally furrowed ; flexuous and motile ; easily separated ; not retractile. Mouth not raised on a cone ; stomach capable of being greatly protruded. There is but a single known species, B. Tuedia. ASTBu^ACEA. BVNODlDJi. THE DEEPLET. BoJocera Tuedice. Plate V. fig. 1. Specific Character. Body dull red ; tentacles chestnut. Actinia Tuedice. Johnston, Mag. Nat. Hist. v. 163 ; fig. 58. Anthea Tuedice. Ibid., Brit. Zooph. Ed. 2. ; i. 242, fig. 53. Landsborough, Scott. Chr. Her. 1840, 243. Cocks, Rep. Cornw. Pol. Soc. 1851, 11 ; pi. ii. fig. 33, GossE, Ann. N. H. ; Ser. 3. i. 416. GENERAL DESCRIPTION. Form. Base. Adherent, scarcely exceeding the column. Column. Cylindrical, smooth and as if polished on the general surface, but studded, somewhat sparsely, with minute rounded warts, which are scarcely apparent when the animal is extended, but, on contraction, " re- semble the heads of small pins in a pincushion" ( W. P. C.) ; in this condi- tion the smooth surface is thrown into transverse wrinkles. Substance firm and sub-cartilaginous. Bisk. Flat, smooth, without conspicuous radii; outline circular, not exceeding the column. Tentacles. Numerous, in three rows, close-set ; the innermost remote from the mouth, sometimes two inches in length, and half an inch in diameter ; the other i-ows diminishing in gradation ; stout, constricted at the foot, then swollen, and tapering to an obtuse point, which is perforate ; marked with longitudinal sulci, which are obliterated when the tentacle is completely distended ; very flexuous and motile ; readily detached, and retaining their irritability and worm-like motions long after the separation. They cannot be retracted within the column, nor are they capable of any considerable elongation or contraction. Mouth. Not raised on a cone. Lip apparently not thickened. Stomach- wall capable of being protruded iu the form of great bladder-Uke lobes. Colour. Column. An uniform deep flesh-colour, reddish, or brownish-orange. Bisk. A lighter tinge of the same. Tentacles. Chestnut or reddish flesh-colour. Stomach. AVhen protruded, reddish with paler lines. THE DEEPLET. 187 Size. Three or four inches in height, and from five to eight inches in diameter, when expanded. Locality. Deep water off rocky coasts, from fifty to two hundred fathoms. It will be evident from tlie above-mentioned characters that this form must be considered as generically distinct from Anthea. It is, in fact, intermediate between that genus and Tealia / with a preponderance, however, of the features proper to the latter, whicli has induced mc to assign it to this family. In this judgment I cany the con- cmi-ence of Mr. W. P. Cocks, who has enjoyed more opportunities of studying it in life than any other naturalist ; and to whom I am indebted for the carefully coloured drawing which embellishes my Plate V. as well as for some interesting notes. Notwithstanding its great size, and somewhat inelegant form, Mr. Cocks calls it "a charming creature;" and says on another occasion, " this is certainly a beautiful animal when healthy and half-grown ; though the queer move- ments of the peristome and lobed mouth, pouting like an old man with negro lips and toothless jaws, at once pronounce its relationship with crassicornis.^^ It is essentially a deep water species : Messrs. Danielssen and Koren ascribe it to the coralline zone off the coast of Norway, from thirty to fifty fathoms, and, on the authority of Mr. Sars, mention it as ranging to the amazing depth of two hundred fathoms.* On the Cornish coast, it is not seldom found among trawl-refuse ;t ftud Dr. Johnston tells us that in Berwick Bay it occasionally occurs at- tached to the deep-sea lines of the fishermen. " I have often found," he remarks, " the tentacula in a separated * Fauna Litt. Norv. ii, 87. t Cocks in litt. 188 BUNODID^. state adhering to their lines ; and, as these retain their irritability and motion for a long time, they are apt to be mistaken for independent and perfect worms, which they much resemble." * I have seized so unusual a peculiarity as the ready parting with the tentacles, to create a generic appellation, — Bohcera, from ^aXXco, to cast, and Kepa^, the horn. The word TuedicB was applied to the species by Dr. Johnston, because Tuedia was the ancient name of the maritime parts of Berwickshire. The English term I have formed in allusion to its habits. With the exception of some extraordinarily gigantic specimens of A. diantJius, this is the largest of British Anemones. The following are its recorded localities. Peterhead, C. W. P: Berwick Bay, G. J. : CuUercoats, J. A.: Falmouth, W. P. C. : Cumbrae, D. L. A. cereus, Tuedia. T. crassicornis. » Br. Zooph. i. 243. 189 GENUS 11. BUiNODES (Gosse). Actinia (Ellis). Crihrina (Ehrenberg). Base exceeding the column ; its outline generally undulate. Column pillar-like; the height in extension consi- derably exceeding the diameter. Surface studded with permanent rounded warts, set in vertical lines, which are separated by bands of plane skin. Margin denticulate. Substance firmly fleshy. Disk flat, circular in outline ; scarcely overlapping the column. Radii conspicuously marked. Tentacles not very numerous, arranged in several rows, submarginal ; moderately long and slender, obtusely pointed, smooth, not very flcxuous ; marked (in the more typical species) with irregular white spots on the front face ; perfectly retractile. Moulk not raised on a cone ; stomach not habi- tually protruded : gonidial tubercles generally conspi- cuous. ANALYSIS OF BRITISH SPECIES. Warts generally distributed. Warts large and small in alternate lines gemmacea. Warts subequal. Warts vertically remote, unicolorous (hnllia. Warts vertically contiguous, red-spotted Ballii. Warts only on upper half of column coronala. ASTR.EACEA. BUNODID^. THE GEM PIMPLET. Bunodes gemmacea. Plate IV. figs. 2, 3. Specific Character. Alternate series of large and small warts. Column grey or flesh-coloured, with six equidistant bands of white. Tentacles thick, marked with white oval spots. Actinia gemmacea. Ellis and Solandeb, Zooph. 3. Johnst. Brit. Zooph. Ed. 2, i. 223 ; pi. xxxviii. figs. 6—9. Cocks, Rep. Cornw. Soc. 1851. 7 ; pi. i. figs. 24, 25, 28. Gos.se, Dev. Coast, 168; pi. viii. figs. 1 — 4. ven'ucosa. Pennant, Brit. Zool. iv. 103. Lamarck, Anim. s. vert. iii. 70. Rapp, Polyp. 50. i glandulosa. Rapp, Polyp. 52, Cribrina verrucosa. Ehrenb. Corall. 40. Cereus gemmaceus. M.-Edwards, Corall. i. 265, pi. C 1, fig. 3. Bunodes gemmacea. Gosse, Tr. Linn. Soc. xxi, 274 ; Ann. Nat. Hist. Ser. 3. i. 417 ; Manual Mar. Zool. i. 29. GENERAL DESCRIPTION. Form, Base. Adherent to rocks ; in general but slightly exceeding the column. Column. Pillar-like, rising to a height twice the diameter. Surface covered with round warts, arranged in forty-eight vertical rows, according to the following arrangement : — six primary rows equidistant, distinguished by their white colour, and by their superior size ; six secondary rows, intermediate ; twelve tertiary, intercalated between the primary and secon- dai-y ; — the difierence in size between these is slight, but is often dis- cernible ; finally a row of quaternary warts (twenty-four in all) is placed between all the above, and these are much smaller and less distinct. All these become indistinct towards the base, being traceable downwards in the ratio of their order ; while towards the summit they become larger and bladder-like, the uppermost individuals of all the series crowning the ffO THE GEM riMPLET. 191 margin like serried teeth. In contraction the surface is thrown into trans- Terse wrinkles, which of course pass between, and not across, the wai-ts, and thus a latticed or decussate appearance is communicated ; — as if each wart were the centre of a little square. Bisl: Flat or slightly concave ; the outline circular and plane, a little overlapping. Gonidial radii strongly developed. Tentacles. In four rows, containing 6, 6, 12, 24 = 48; corresponding to the lines of warts. They are sub-marginal, thick, moderately long, conical, obtuse ; decreasing in size from the first row outwards ; and are generally carried arching over the margin, or bent into a double cui've, like the branches of a candlestick : often, howevei-, they assume a clumsy, thickset form, swollen in the middle (see fig. 3). Mouth. Raised on a blunt cone. Lip furrowed. Gonidial tubercles prominent. Colour. Colwnm. Rose-pink, varying in brilliance, and often becoming brownish towards the summit. Primary warts white, making conspicuous longitu- dinal bands, which in the button state form a beautiful radiating pattern. Secondary and tertiary warts bluish- or reddish-grey, the former generally'' paler. Quaternary warts generally indistinguishable from the ground colom". Sometimes, however, the quaternary row which bounds each primary on each side is also white (see fig. 3). Dish. Ground colour bluish-grey on the outer region, blending into a fine yellow-green around the mouth : each radius is bounded by a scarlet line, lost at about half-disk; the primary radii are often marked with darker and paler portions, sometimes even black and white ; and the result is a brilliant kaleidoscopic star, of varied hues, the blue and scarlet lines in particular running out among the tentacles. Tentacles. Pellucid grey or whitish, the front face olive, midefined, and deepening into black in the median line, often with a pui"ple reflection : this face is crossed by about half-a-dozen large transversely-oval spots of opaque white, occasionally interchangc.d with more nar- row and even linear ones. These spots are well-defined, and, though they vary in the tentacles of the same in- dividuals, are never wanting. Mouth. Lip whitish : gonidial tubercles grey, each marked with a central dot of bright rose-colour. ,, tentacle {lateral view). SiZH. R-arely exceeding an inch in diameter, and an inch and a half or two inches in height. 192 BUNODIDiE. Locality, The south-western and southern shores of England and Ireland ; the coasts of Portugal, and of the Mediterranean : on exposed rocks and shallow pools between tide-marks. Variety. The species is but little subject to variation of form, or of hue, except within the limits mentioned above. Specimens difiFer a good deal, how- ever, in the intensity and brilliance of the tints. The Gem was first discovered, or at least distinctly described, just a century ago, by Gacrtner, who found it on the shores of Cornwall ; but it was not till fifteen years afterwards that it received a name. Pennant then called it Actinia verrucosa ; but this appellation has yielded to that of A. gemmacea, which Avas conferred upon it by Ellis and Solander, and which has been so generally adopted by British zoologists, that it would be pedantic to attempt to restore the original name. Both epithets are appropriate. Pennant's (signifying warty) is, however, rather generic than specific ; wliile Ellis's, if somewhat more vague, is well fitted to suggest the delicate beauty of this pretty little species, — perhaps unrivalled, among British species, for its painting. The English term by which I designate the genus, alludes to the pimphs, or warts, with which the animals are studded. It is essentially a littoral species. I am not aware tliat it has ever been brought up from deep water, nor does it much affect the concealment of holes or crevices. The surfaces of stones, and shallow pools Avithin tide-marks, are the stations it habitually prefers, and it is often found in the latter even when they are but little below the level of high water. It appears to be gregarious ; for, though we do not find individuals crowded together, as is tlie habit of hellis, a dozen or twenty are often seen occu- pying the shallow basins of an area of rock a yard or two THE GEM riMPLET. 193 in extent, though none are to be seen beyond this. In the button-state, the radiating bands of white on the red- dish-grey ground, with the globular form, give a prima, facie resemblance to an Echinus, denuded of its spines, which is very striking. In their native pools the specimens are often partially enveloped in gravel, from which, if closed, their six-fold star appears prettily conspicuous ; while if expanded, the brilliant pencilled disk, and white- spotted tentacles, are even more attractive. The Gem is detached with ease, and becomes reconciled to captivity without difficulty, where it preserves its cha- racteristic habit of stationing itself on some exposed spot, whence it is little given to wander. It is prolific, bringing forth living and well-formed young, which are produced one, two, or three in twenty-four hours, and not scores or hundreds in a night, as are those of S. hellis. The Gem, however, will often continue to breed at this rate for weeks. The new-born young immediately attach themselves, and display the characteristic colour and markings : they have twelve tentacles ; that is to say, the primary and secondary series are developed before birth. In this condition they greedily devour food when presented. Miss Loddiges, of Hackney, who has been very successful in breeding and preserving this, as well as other species of Anemones, has favoured me with some particulars of her treatment, which may be useful to others. Speaking of the young, this lady observes : — " I feed them from their first appearance, — rather a delicate operation, — and they steadily grow, though rather slowly Oyster seems the best food for them, but I give them lobster, and even meat. ... I am satisfied sea-weed is not necessary in the tank : I have discarded it for some time, and only admit one small piece of red for an ornament. I syringe the water daily." 194 BUNODIDJJ. The voracity of the species I have already alluded to. From my friend Mr. F. II. ^A'est, I learn that it is even ot cannibal propensities. A Sa^. trojlodj/tes, var. ^, he suddenly missed, and suspected gemmacca of murder. Ilis suspicions were confirmed , for the lost •wretch was disg"orged in two portions, of which the first came away on the second day, the second and lars^er on the fourth. The result of dices- tion was manifest, in the squeezed and shapeless appearance of the masses, the dissolution of the interior, and the ilaky sloughing of the exterior. In the published descriptions, often imperfect and vague, of foreign species, we can sometimes find indications of probable aflinities. The Act. tuberculosa of Bass's Strait (Quoy et Gaim.), A. hi'coJor of St. Vincent (Lesueuv), A. xant/iO(jrra)nm(cn of Kamtchatka i^Brandt), ^1. cruentata of Tierra del Fuego (Dana), and A. Maclociana of the Malouiues (Eicsson), — are doubtless true Bunodes, indi- cated not only by their warty surface, but also by the white spotting of their tentacles. Of these, the first two seem closely allied to our gemmacca, the third to thaUia, while the last two deviate more from the type, and appear parallel with BalUi. The following are the recognised British localities of the species : — Guernsey, E. W. H. II. : Jersey, G. G. : Weymouth, IF. T. (w.) : Torquay, P. H. G.: Paignton, P. H. G. : Falmouth, IF. P. C. : llfraeombe, P. IL G. : Douglas, F. KW. : Youghal, J. P. G.: Cork, J. P. G. : Mizeu Head, E. P. IF..- Valcntia, J. M. Jones. GEM.MACKA. [tuberculosa]. [bicolor]. thallia. ASTIi.EACEA. JiUNODlD.E. THE GLAUCOUS PIMPLET. Bunodes thaUta. Plate IV. F!f/». 5, 6. Specific Character. Warts sub- equal, vertically remote, unicolorouH. Bmodei thallia. Gosse, Annals N. H. Ser. 2, xiv. 283 : Tenby, 361 ; pi. xxiii. fig. c: Linu. Trans, xxi. 274. Annals N. H. Ser. 3, i. 417. Cerem Thalia. Milne Edwards, Hist. Corall. i. 266. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; considerably exceeding column. Column. A rounded button in contraction, pillar like in extension, rising to full twice the diameter. Surface coveied with numerous (about thirty -six) vertical rows of sub equal prominent warts, which arc separated, in moderate extension, both laterally and vertically, bj' interfpaces of about equal width, in which the skin is irregularly corrugated. The warts are about twenty-five in each row, and reach from the base to the margin, which is serrated with the elongated topmost warts of all the rows. They are strongly adhesive, and are occasionally drawn out to the length of a line, before they yield their hold. Substance firmly fleshy. Disk, Flat, or slightly concave ; radii indistinct. Tentacles. Sub-marginal, set in four rows; 6, 6, 12, 24:= 48 : — the first three rows are, however, so nearly equidistant from the centre that, on a cursory inspection, there appear but two rows altogether. They are sub- equal, thick, obtuse, about half as long as the diameter of the column ; and are commonly spread horizontally, or overarching outwards. Mouth. Set on a prominent cone. Colour. Column. Pale bluish or greyish green, with dark warts. Dish. A many-rayed star of yellow rays on a blackish ground, produced in the following manner. The radii are blackish, each marked with a central spindle-shaped line of yellow ; in the primal^ and secondary radii, 2 196 BUNODID.E. the yellow mark is broader and near the mouth ; in the others, it is more slender, longer, and reaches to the tentacular region. Tentacles. Pellucid grey, with the front face olive, on which are scattered numerous spots of opaque white : these spots are gene- rally roundish, or polyhedral, and large and TENTACLE Small oues are crowded together. {lateral view). Mouth. Blackish, with the gonidial tuber- cles of a more intense hue. Size. Button an inch and a quarter in diameter, elongating to a height of two inches ; expanse of flower two inches. Locality. Both sides of the Bristol Channel ; rocks within tide-marks. Varieties. a. Hygroxyla. The green condition described above. )8. Xeroxyla. Column dingy brown, with slightly darker warts ; disk of the same tint ; marked as in a. y. Caustoxyla. Column reddish chocolate, with darker warts ; disk dark olive ; marked as in o ; the central half sometimes white. I first discovered this species at Lidstep, on the coast of Pembroke, in 1854, and described and figured it in " Tenby ; a Seaside Holiday." Very little has been added to its recorded history since that time ; not more than four speci- mens having occurred, so far as I am aware, to subsequent researches, all of which were obtained near Ilfracombe. Though manifestly a rare species, I was so fortunate as to light upon a numerous colony at its discovery. About a dozen individuals of different sizes were associated in the dark angles and pools of a little insular rock exposed at spring-tide, that lies just off the cove called tlie Drocli, near Lidstep. They were not troglodyte in habit, but adherent to the open rock, and therefore easily detached. The species seems social ; clustering together in grou[).>^, mutually pressing each other's sides. The habits of the Glaucous Pimplet in captivity are THE OLAUCOUS PIMPLET. 197 closely like tliose of the Gem. Like the latter, it expands under the stimulus of the liglit, rather than in darkness, indicating a habitually exposed mode of life. Like gem- macea, it frequently erects itself when closed^ in the form of a pillar; and throws off successive rings of mucus from its body, which accumulate around its base, if not removed. The action of the waves would wash these away in a state of freedom ; in a tank tliey should be detached by means of a stick or hair-pencil. I have never seen the warts of gemmacea used as suckers ; but in specimens of the present species, I observed this function exercised by them very signally ; not in the way of attaching extraneous frag-ments to the body, like >S'. bellis and T. crassicoi-m's, but in taking hold of a firm support, like S. troglodytes. The suckers of the column adhered with force to the side of the glass vessel, and by contrac- tion were stretched as above described. The specific name " thallia " (not Thalia, as M. Milne Edwards misquotes it) I adopted in allusion to the elon- gated form and glaucous colour^ from 0aX\ia, an olive- shoot. The same idea recurs in the epithets which distin- guish the varieties, — as if the glaucous, the dull brown, and the chocolate, were the twig as green, dry, and scorched. It is possible that the immature specimens, found by Templeton in Belfast Lough, and named by him Act. monile* were the young of this species ; though they have been generally attributed to gemmacea. gemmacea. THALLIA. [xanthogrammica]. [Artemisia], T. crassicornis. ♦ Loudon's Mag. N. H. ix. 303 ; fig. 40. ASTR^ACEA. BUNODID^E. THE RED-SPECKED PBIPLET. B anodes BalUi. Plate IV. Fly. 4. Specific Character. Warts sub-equal, vertically contiguous, red-spotted. Actinia Ballii. Cocks, Rep. Com. Soc 1840, 94 ; Ibid. 1851, 9; pi. ii. figs. 9, 17, 18. clavata. Thompson (w.), Zoologist, 1851, App. cxxvii. Gossk, Ann. N. H. Ser. 2, vol. xii. 127. Aquarium, 35. TuGWELL, Man. Sea Anem. 100, pi. iv. Jordan, Ann. N. H. Ser. 2, xv. 88. Bimodes clavata. Gosse, Linn. Trans, xxi. 274. Ann. N. H. Ser. 3, i. 417. Cereus clavata. Milne Edwards, Hist. Corall. i. 267. GENERAL DESCRIPTION. Form. Base. Adherent to rocks; considerably exceeding the column ; generally length«ned-ovate in outline. Column. Low and broad, scarcely rising to a jiillar-form. Surface covered with warts about equal in size, arranged in forty-eight longitu- dinal rows, of which the alternate rows are traceable from the margin only about half-way down the column ; the warts are contiguous vertically, but the rows are separated laterally, by interspaces of equal width, of corru- gated skin. The iJrimary rows consist of about twenty four warts, becoming indistinct towards the base; the uppermost individuals of all the I'ows crowning the margin as blunt teeth. Disl\ Flat ; the outline nearly circular, often much overlapping the column. Radii distinct; gonidial radii broad and strongly marked. Tentacles. Nearly marginal, set in five rows ; 6, 6, 12, 24, 24 = 72 : the first three rows nearly equidistant from the centre. They are longer and more slender than in yemmacea, conical, obtuse ; decreasing in size from the first row outwards ; and are usually carried horizontally spread, with a very constant tendency to curl upward at the tips. Mouth. Raised on a cone ; often gaping ; throat membranous, protru- aile : gonidial tubercles usually prominent, often inflated. Colour. Ba»e. Red, sometimes rich crimson. THE RED-SPECKED PIMPLET. 199 Column. Pale yellow : each wart crowned with a well-defined crimson speck, the interspaces irregularly freckled with crimson. In some instances, the pale yellow predominates on the upper half of the column, the crimson on the lower. JJid: Pellucid-grey, covered or dusted with opaque white specks, varying in size and shape, as if sprinkled with flour. Tentacles. Yery pellucid, pale yellow, but some or all frequently tinged with a lovely rose-colour: always sprinkled, on all sides, with minute irregularly shaped specks of opaque white. Mouth. Lip and gonidial tubercles some- TEXTACLE times crimson or rose-pink; but sometimes {lateral view). whitish or pale yellow. Size. Ordinary specimens are an inch in diameter and half an inch in height, with an expanse of two inches. Mr. Tugwell figures one two inches in diameter, and three in expanse ; and Mr. Brodrick writes me that one, which has been in his possession nearly three years, measures, after teeding, fou.r inches in expanse. Locality. The southern and south-western shores of England ; on the under sur- faces of stones, and in crevices between tide-marks, and in deep water. Varieties, a. Rosea. The most lovely condition above described. /3. Dealbata. The roseate hue wanting; the tentacles cream white; in other respects as a. y, Funesta. Tentacles dark umber or wood-brown, with little trans- lucency. Disk smoke-black. Both dusted with yellowish-white specks as usual. Column as a ; but tinged with brown. Usually of large size. 5. Liiida. Tentacles and disk tinged in various degrees with bluish-grey or livid green, often in a sort of changeable lustre, like that of putrescent flesh ; with the characteristic specks. Chiefly from deep water. Mr. William Thompson, of Weymouth, described this species by the name of Actinia clavata, in the Appendix to the Zoologist for 1851. But Mr. W. P. Cocks had ah-eady described and figured, under the title of A. BaUii, the same 200 BUNODID^. species, in his admirable memoir " On the Actiniae of Falmoutli," which was read before the Cornwall Polytechnic Society, in the autumn of the same year. He had been acquainted with the species ever since 1847 ; and had pub- lished the name in the Society's Report for 1849. To Mr. Cocks's appellation, therefore, belongs the claim of priority ; but even were it otherwise, ]\Ir. Thompson's name must be rejected, not only because it had been previously* applied to another species, but, according to a canon which I have already had occasion to apply to one of my OAvn name3,t because it conveys a false idea. The name clavata origi- nated in a misconception. In the single specimen known to Mr. Thompson at that time, he mistook the curling of the tips of the tentacles for a cJuhhing, whence the name ^^ clavata " — clubbed. These organs have not the slightest tendency to such a form as the term implies. The name which I adopt was given, I believe, in honour of the late Robert Ball, LL.D., an eminent marine zoologist. I found the species not uncommon at AVeymouth in 1853, especially on the ledges that are exposed at the recess of the tide, under Byng Cliff. Its habit is to hn-k in narrow fissures in the cavities of the under side of large flat stones, and not unfrequently in the deserted holes of Pholas or Saxicava. The disk is very wide and flat ; and, as it is also very expansile, it spreads itself to a consider- able distance around the margin of its hole. So essential is it to its comfort, however, that it should have a retirement, that if it be put into an aquarium, though it may at first affix itself to a flat stone or to the surface of a shell, it will creep away, by means of its base, till it find some loose stone, under which it will insinuate itself till it is quite " M. Rathke had named clavata an Actinia, which he fuund on the coast of Norway, in 1843. t See ante, p. 75. THE KtD-SPECKED PIMPLET. 201 concealed ; or a narrow crevice, as between two contiguous stones, into whicli it may tlirust its body. The variety livida, which is not rare in Weymoutli Bay, in deep water, manifests the same habit, for it is usually found to have ensconced itself in one of the angular cells or cham- bers formed by the coral-like plates of Eschara foliacea, which afford retreat to so many and so various creatures. A remarkable peculiarity of this species is the degree to which it becomes transparent by distension with water. The effect of this is not the general swelling of the body, as in T. crassicornis, whicli is remarkable for the same habit effected in another way, but a gi-eat dilatation of the disk and tentacles, which then expand to an extraordinary degree, becoming so diaphanous as to be almost destitute of colour, and showing with absolute clearness the craspeda in the intersepts of the visceral cavity. The species is hardy in captivity, and the varieties a and /S are very beautiful, especially the former. The variety 7 has not unfrequently beguiled me, on a hasty examination, into the notion that S. belh's was before me ; and I think that these two species form links by which the families BunodidcE and SagartiadcB are connected. There is also a remote affinity between this species and Aipt. Couchii. My friend, Mr. F. II. West, has received B. Ballii from the French coast of the Channel. On our own side it ranges in tolerable abundance from the Hampshire coast to the Lizard, as the following list will indicate : — Selsey ; Ventnor, G. G. : Freshwater Bay, F. N. B. : Weymouth ; Torquay, P. H. G. : Falmouth, W. P. C. thallia. Sag. bellis. Ballii. Aip. Couchii. [cruentata]. [Macloviana]. ASTR.flACEA. BVNODlDAi. THE DIADEM PIMPLET. Bunodcs coronafa. Plate VII. Fi(/. 4. Specific Character. Warts almost confined to upper half of column, in lines and in-egularly scattered ; sub-equal, small. Bunodes coronala. Gosse, Annals N. H. Ser. 3, ii. 194. GENERAL DESCEIPTION. i Form. Base. Adherent to shells, scarcely exceeding column. Column . Cylindrical in expansion, much higher than wide ; covered on the iipper two-thirds with moderately numei'ous small warts, neither per- forate nor excavate ; they are arranged in twelve longitudinal rows, with irregularly scattered ones between ; and are generally wanting towards the base. Skin between the warts smooth, and when distended having a satiny lustre. Whole column invested with a thin drab epidermis, deciduous in ragged shreds, but adhering pretty firmly. A distinct parapet, with a smooth sharp edge, but no appreciable fosse. I>isl:. Circular, flat, but often protruded so as to be convex, or to form a low cone ; radii distinct. Tentacles. In five rows; 6, 6, 12, 24, 48=96. They are sub-marginal, the first row siDringiug at about three-quarter radius ; they are shorter than radius, diminishing outwai'dly, conical, sub-acute. Mouth. Large, protrusile : lip sharp : throat evertile, coarsely furrowed. Colour. Column. A rich oi'ange, or orange-scarlet, with the warts either paler or darker than the ground-colour. Edge of parapet cream-white, immediately below which the margin is marked alternately with square patches of dark purplish chocolate, and narrower spaces of whitish (twelve marks of each colour in adults, six of each in young) ; these, from the fine contrasts of colour, when the button is not quite closed, have a very striking and characteristic effect, as if the animal were surmounted by an elegant coronet. Disk. Red, varying from pellucid scarlet to a reddish chocolate ; each radius bearing a longitudinal central streak of white, which does not reach TUE DIADEM TIMPLET. 203 either teutacle or lip, and bouiuled by a very fiue white line on each side ; thus is produced a pat- tern of fine radiating lines of white on red. Some- times the lines are irregularly blotched and dilated, with ragged edges. Tentacles. Pellucid, nearly colourless, crossed by thi-ee dim sub-opaque white bars, of which the middle one is most distinct ; near the base are two chocolate bars, generally divided by a central longitudinal line of pellucid white, giving the appearance of four dark spots set in square. Sometimes one bar is nearly or quite obliterated. Mouth. Lip whitish. Throat rich orange-scarlet : tlnt.vclk the furi'ows darker than the ridges. {froyit view). Size. Diameter of column in button, one and a quarter inch ; height two inches expanse of flower one inch. Locality. The south coast of Devon ; moderately deep water. Varieties. a. Patricia. The rich orange-scarlet condition just described. j8. PIchcia. The column of a dirty light brown ; the markings of the marginal coronet distinct, but duller. The usually red ground of the disk replaced by deep brown, and the white linos by j-yellucid drab ; the whole interrupted by four or five broad irregular radial bands of pure white. The bars of the tentacles obsolete. This fine species first occurred to myself when dredging oft' Berry Head, in about tAventy fathoms, in August, 1858. Three or four specimens came up in about the same number of hauls. In every case the animal was adherent to the shell of the living Turritella terehra, a moUusk which is so abundant there that the dredge comes up half- filled with it. The base of the Bunodes clasps the long turreted shell, nearly enveloping it when adult, only the apex and the mouth of the shell being exposed. .Other specimens have occurred since in similar circum- stances; and Mr. Densham, a collector of Torquay, informs me that in October he obtained a group of eiglit or ten adhering to a mass of oysters. 204 BUNODID^. It is manifest that this species departs considerably from the type of Bunodes. The irregularity of the warting, the conical form of the tentacles, and their style of colouring, in alternate undefined rings, and the occasional eversion of the walls of the throat, indicate a sensible approach to the following genus. It is always to abeiTant species tliat we look for cross affinities ; and therefore I was more gratified than surprised to see in this animal evident marks of connexion, both in appearance and habit, with the Sagartiadce. Before I had seen it expand, I suspected it to be 8. parasitica, especially when in the act of unfolding. It has much resemblance to that species, as well as to >S'. coccinea, with which it was associated ; for a number of this little species occurred in the same dredge-hauls ; these also adherent to the shells of the TurriteUce. The whole aspect of the Diadem Pimplet, including the colouring, is that of a Sagartia, though the preponderance of its characters deter- mines it to Bunodes. It is interesting, in this relation, to notice, that one specimen in my possession protruded from the mouth a bundle of what appeared to be true acontia. The species lives well in a tank ; where it readily deserts its shell, and attaches itself to stones, or the vessel. It is lively, opening freely, frequently constricting its column, and changing its form with considerable rapidity; its vivacity and brilliant colour render it an acquisition to the aquarium. Both the scientific and the English appellations by which I distinguish the species, allude to the coronet of purple spots which sun'ound the margin. Berry Head, P. H. G.: Torbay, E. W. H. H.: off" Teignmouth, G. H. King. Ballii. Sag. parasitica. CORONATA. Sag. coccinea. T. crassicornis. 205 GENUS III. TEALIA (Gosse). Actinia (LiNX.). Cribrina (Ehkenb.). Cereiis^ (Milne Edwards). Bunodes (Qosse). Base exceeding the column. Column not pillar-like ; the diameter usually much exceeding the height. Surface studded with per- manent rounded warts, which are hollow, and have a strong adhesive power, irregularly scattered, or not set in vertical lines. Margin denticulate. Substance cartilaginous. Disk flat, circular in outline, considerably over- lapping the column. Radii inconspicuous. Tentacles not very numerous, arranged in several rows, sub-marginal ; short, thick, and conical ; uni- colorous, or marked with undefined rings or bands of alternate colours ; perfectly retractile. Mouth raised on a cone ; stomach habitually pro- truded to a great extent. Muscular system highly developed ; very dense, and of a cartilaginous firmness. ANALYSIS OF BRITISH SPECIES. Warts unequal : stomach and warts red ; tentacles un- handed diijitaia. Warts ecjual : stomajh and warts grey ; tentacles banded . craasicoiiiia. p. H C DEL l_6 ACTINIA MESEMBRYANTHEMUM 7 A CHIOCOCCA 8. SACARTIA CHRYSOSPLE N lU M K C0LOU1S Bf >V DICKI 9 ANTHEA CEREUS 10 TEALIA DICITATA 11 SACARTIA VIDUATA THE MARIGOLD WARTLET. 207 Size. Column one and a half inch high, and the same wide. Expanse about two inches. Locality. Coast of Northumberland and Cornwall. Deep water. The name by which I have distinguished this genus is given as a tribute to the skill and acumen of Mr. Thomas Pridgin Teale, of Leeds, who published an elaborate and excellent Memoir on the anatomy of the following species. The English appellation is sufficiently obvious. The specific term digitata, " fingered," doubtless alludes to the thick conical form and dull reddish hue of the tentacles, in which the Danish zoologist saw a resemblance to fingers, — those of a ploughman or a scullery-maid, surely ! I distinguish this species from crassicornis on the autho- rity of Mr. Joshua Alder, of Newcastle, who first mentioned it as British, in his Catalogue of the Zoophytes of that coast. The same gentleman has kindly favoured me -with several drawings of the species, executed with his well- known beauty and precision (one of which is reproduced in my Plate), as well as with his MS. notes, from all of which combined I have compiled the foregoing diagnosis. Mr. Alder entertains no doubt of its specific distinctness ; ' and his numerous opportunities of seeing it alive and comparing it with the more common kind, render his opinion valuable. He says, *' It is the most coriaceous and warty species tliat I am acquainted with." And again, " It is always much smaller than crassicornis, more tough and coriaceous, with larger warts, and constantly of a pale red colour." " It is not uncommon," adds the same excellent natu- ralist, " in deep water on our coast ; and as the cod-fishing boats arc coming into port frequently at this .season [April], 208 BUNODID^E. I may be able to get you a specimen, though not in a lively condition." Among the numerous drawings of Actinoids for which I am indebted to Mr. W. P. Cocks, there are two which he has not named, but which are evidently identical with the Northumbrian species. Thus I am able to assign it to the Cornisli coast. These are the only British localities I yet know for it. DIGITATA. crassicoruis. ASTRJiACEA. BUNODIDj£. THE DAHLIA WARTLET. Tealia crassicornis. Plate IV. Fig. 1. Specific Character. Warts equal; stomach and warts grey; tentacles generally banded. Actinia felina et A. senilis. crassicornis. Holsatica. ? fiscella. ? bimaculata. coriacea. yemmacea. Cribrina coriacea. Isacmcea papillosa. Bv/nodea crassicornis. Tealia crassicornis. Linn. Syst. Nat. 1088. MtJLLER, Prod. Zool. Dan. 231. Fabk. Faun. Grcenl. 348. Johnston, Br. Zooph. i. 226 ; pi. xl. GossE, Devonsh. Coast, 34. Cocks, Rep. Corn. Soc. 1851, 7 ; pi. ii. fig. 1. MuLLER, Zool. Dan. iv. 23, pi. cxxxix. ' Ibid. Ibid. iii. 3, pi. Ixxxii. figs. 5, 6 (Juv. .'). Grube, Actinien, 4, fig. 4. Cdvier, Tabl. ^l^m. 653; RSgne Anim. ed. 1, iv. 51. Rapp, Poly pen, 51, pi. i. fig. 3. Teale, Trans. Leeds Soc. i. 91, pis. ix. — xi. Johnston, Br. Zooph. i. 224 ; pi. xxxix. figs. 1, 2. Cocks, Rep. Corn. Soc. 1851, 7; pi. ii. fig. 2. ToGWELL, Man. Sea Anem. 64, pi. iii. Dalyell, Rem. Anim. Scotl. 223 ; pi. xlviii. figs. 1, 2. Johnst. Br. Zooph., Ed. i. 213, Couch, Com. Fauna, iii. 76. Ehrenb. Corall. Roth. Meeres, 40. Ibid. Ibid. 33. GossE, Trans. Linu. Soc. xiL 274 ; Man. Mar. Zool. i. 29, fig. 42. Ibid, Ann. N. H. Ser, 3, i. 417. GENERAL DESCRIPTION. Form. Base. Adherent to rocks and stones. In general not much exceeding the column. Column. Rarely pillar-like. In expansion, the diameter greatly ex- ceeding the height. Surface covered with small hollow adhesive warts, 210 BUNODID^. sometimea having a, tendency to run in longitudinal lines, but more generally irregularly scattered, leaving intervals of three or four times their diameter in ordinary states of distension, and these intervals have often a silky lustre. Substance firm and even cartilaginous. Margin entire, but roughened with the scattered waits, forming a thick parapet, separated from the tentacles by a broad fosse. In freedom, the column is generally more or less disguised by fragments of stone and shell adhering to the suckers, Di)ik. Flat, circular in outline, plane but overarching. Radii con- spicuous chiefly by colour. Tmtacles. Arranged in five rows, the first set at about half radius, — 5, 5, 10, 20, 40 = 80 ; the first and second so nearly eqmdistant from the centre as to seem but one. Their form is conical, thick at the foot, regularly tapering to a point, which is sometimes slightly inflated. The animals appear to have the power of changing the shape of these organs at will ; for I have had individuals, in which the tentacles, after having for a while borne the ordinary conical form, suddenly became nearly cylin- drical, with truncate extremities, and maintained this form for a long time. These organs are nearly equal among themselves, and their length is about equal to one-third of the diameter of the disk. They are capable of little flexure, and are generally spread in a regular star-like manner, the outer rows deflected, the inner erect, and the intermediate ones horizontal. They are powerfully adhesive. Mouth. Frequently elevated on an eminence of varying form and dimensions. Throat and stomach often protruded to such an extent as to conceal the whole disk. Qonidial tubercles two pairs, small. Colour. Cohimn. Dull green, streaked and flaked with crimson, with pale grey wai-ts. Disk. Glaucous-olive, with conspicuous radial bands proceeding from each outer tentacle, in pairs, which cuiwe around the foot of each tentacle of the higher rows, and are lost at varying distances from the centre ; those paii's which enclose the inner tentacles extend farthest and are most conspicuous. The colour of these bands is scarlet, often edged with white, and they are highly charactei-istic of the species. Tentacles. Pellucid light bi-own, with a band of opaque white across the foot, which frequently stretches a little way up each side: a broad band of crimson surrounds the middle, bounded below, and sometimes above, by a narrower band of sub-opaque white. All these bands are undefined, and are often rendered sub-pellucid by distension. Mouth. Generally tinged with crimson. Qonidial tubercles crimson. Throat and stomach light grey. Till-: DAHLIA WARTLET. 211 Size. Diameter of column frequently three inches ; expanse of flower five ; height two. Specimens from deep water are occasionally much larger than this. LOCAXITT. The Atlantic coasts of Europe, universally distributed ; in tide-pools, and crevices and angles of rocks, near low-water mark ; and in deep water. I am not certain whether it extends to the Mediterranean. Varieties. The colours of this species are very sportive, and scarcely two specimens can be found exactly alike ; btit all these modifications may be traced to different degrees of predominance of the hues above mentioned. This variety, from its resemblance to a streaked apple, may be named, — o. Meloidcs. $. Purpurea. Column wholly dull crimson ; disk crimson, with the radial bands and sometimes the central region more brilliant than the rest. Tentacles pellucid crimson, with purplish bands. y. Insignis. As $, but the tentacles pellucid white, with broad and con- spicuous bands of opaque white. (PI. iv. fig. 1.) 5. A urea. Column yellow, from a light straw or brimstone colour to the hue of a ripe apricot, «. Vilis. All colour lost in a semi-pellucid dusky grey. (Deep-water specimens generally very large.) In my " Devonshire Coast" (p. 36), I stated, with the reasons which led me to it, my firm conviction that what had hitherto been considered as two species, under the names o{ A. crassicornis and A. cortacea, were one and the same. Seven years' additional experience has only added to the strength of that conviction, and I have not been able to find a single stable character on which their separation could be grounded. It is equally clear which of the two specific names must stand. Rejecting Linnreus's as out of the question, we find that crassicornis was applied to the species by Miiller, twenty-one years before Cuvier called it coriacea. With regard to significance, both appellations are good, perhaps equally good ; tlie former indicating the p 2 212 BUNODID^. thick horn-like form of the tentacles, tlie latter tlie tough and leatheiy consistence of the flesh. The law of priority, however, must be obeyed. Scarcely less abundant than Act. mesembryanthemum, this magnificent species is sown broadcast upon all our shores, and seems everywhere to be equally common. In its habits, however, it is widely different from that favoiu- courting species. Somebody has illustrated the character of two peoples by saying, that if an Englishman retires from business and builds a box, he raises a high wall, and plants a shrubbery before it, to keep off the eye of the profanum imlgm ; but a Frenchman under similar cir- cumstances builds his house on the very edge of the high- way, and takes his meals in the verandah. If this be true, the Actinia is a Frenchman, the Tealia an Englishman. You may hunt among the rocks till the rising tide covers them, and, finding hundreds of Beadlets, but not a single Dahlia, go away with the conviction, that the latter is a scarce species ; but to-moiTOw, an initiated friend accom- panies you to the same spot, and, pointing with his toe to an angle, says, " Here they are! and here! and here! — three, four, half-a-dozen in a group !" and you are tired of collecting before the profusion fails. It is in the angles formed by some great boulder with the beach, that the crassicornis delights to dwell ; and here, according to his recluse habits, he cliooses to conceal his showy person from intruding eyes, by covering himself with a coat of gravel and fragments of shell, which he has attached to his adhesive suckers, till only the experienced eye can detect the difference between the animal and the surrounding rubbish. Not seldom, however, do we meet with a colony in some persistent rock-pool, in whose never-ebbing fulness the gorgeous creatures remain almost permanently ex- THE DAHLIA WARTLET. 213 panded, despising, or not needing, the precaution of con- cealment practised by their tide-deserted brethren of the beach. It is a remarkable example of the economy of creation, that these tide-pool specimens, as well as those which are brought up from deep water, rarely, if ever, indue their bodies with an extraneous covering. In such pools crassicornis makes a noble appearance. His great size, the wide expanse of the flower, the thick tentacles so symmetrically disposed, and the rich hues oflten finely contrasted, — make it by far the most showy of our native species. By some of our fair collectors it has been named the DaJdia ; a comparison which the size, symmetry, and vaiying hues of that favourite flower render not inapt. I have accordingly adopted it ; designating the preceding orange-hued species by the appellation of the Marigold. The resemblance has been acknowledged by one more conversant with flowers than even the ladies. " On one occasion," observes Mr. Jonathan Couch,* " while watching a specimen that was covered merely by a rim of water^ a Bee, wandering near, darted through the water to the mouth of the animal, evidently mistaking the creature for a flower ; and though it struggled a great deal to get free, was retained till it was drowned, and was then swallowed." Mr. E. L. Williams, who has enjoyed unusual opportu- nities of acquaintance with the deep sea, writes me con- cerning this species as follows : — " When diving in bells at Dover, at the Admiralty Pier, in eight to ten fathoms' water, I have often seen it, generally on the tops or sides of lumps of rock. The yEsop Prawn [Fandalics annuli- cornis ?] was very common there, and seemed its food. I never saw a closed crassicornis in deep water, except while catcliing its prey." * In Johnston's Brit. Zooph. i. 225 ; et in litt. priv. 214 BUNODID^. My esteemed friend, Professor E. P. \^''right, of Dublin, has favoured me with one of his vivid pictures, in which this species forms a prominent feature. It will be read with interest : — "There is a very fine cave here, [Crookhaven, county Cork,] entered at either high or low water by a boat, whose entrance is guarded on both sides by a long low reef of rocks, and of a depth at low water of about ten or twelve feet. The sea-floor is shaped somewhat like a Spanish hulk, i.e. rather flat at the bottom, and then rising up gradually and ' wideningly ' to a distance far above our heads, and then ending in an arch formed of sharp-pointed icicles of the by-me-never-to-be-forgotten Devonian slates. To this cave all the fat and fair anemones of the county seem to be sent, when once they have reached a good bodily condition. The cavern is of ample dimensions, so they don't crush each other for room ; and the regular manner in which they dispose of themselves is worthy of note. Actinia mesem- bryanthemum — the green, scarlet, and strawberry varieties — occupied the highest row, some of them partly out of the water; they had eyes, and kept a 'look-out' for the rest. Then came Sag. venusta and Sag. nivea, lovingly inter- mixed, and in a large broad band some four feet deep. Then there came an empty row of benches, necessary to keep the tenants of the galleries from the aldermen in the pit, for it was Jilled with T. crassicornis. 1 verily believe the biggest of the big were here ; and the commonest variety was the one with the white tentacles and red disk — a splendid show for size of specimens and magnificence of colour. This cave of Anemones never can be surpassed, and seldom will the wild grandeur of the cliffs, a hundred feet and more high, with the Atlantic waves rolling in to fill up the picture, — be equalled." The voracity of this fine creature is remarkable. The THE DAHLIA WARTLET. 215 Shore-crab [Carcinus] is its ordinary prey, but it feeds on limpets, and other Mollusca. Dr. Johnston tells of one that had swallowed a valve of the Great Scallop, and of the strange result;* Dr. E. P. Wright had one which discharged as the remains of his evening's meal, " a mode- rate sized Fusus, and a mass of Nereids and Shrimps, that exhaled such a fearful smell as killed all my tank-full;" and one in Mr. F. II. West's possession actually made a bonne bouche of an Echinus milians, as large as a shilling, making no bones of the spines. Two days afterwards the shell of the Urchin was disgorged, perfectly empty, denuded of its spines, the oral plates crushed in, and partly "wanting. The common Blenny and other fishes frequently fall victims to the rapacity of this gourmand, which spares not its own kindred. The tentacles are very adhesive, as is sufficiently mani- fest to our fingers, when we touch them ; and contact with these organs is amply sufficient to resist the most vigorous attempts to escape of the animals above-mentioned. Beautiful as is the Dahlia, it is not a very frequent tenant of our aquariums ; as it is one of the most difficult to keep. I have, however, kept specimens for four and five months ; and Mr. West still longer ; for the epicure whose urchin-diet is recorded above, had been then nine months in captivity. It appears to be little able to sustain extremes of temperature. The heat of summer is generally fatal to our captive specimens ; and a severe winter makes havoc among those which are in the enjoyment of freedom. After the intense and protracted frost of February, 1855, the shores of South Devon were strewn with dead and dying Anemones, principally of this species, which were rolled helplessly on the beach, their bodies almost concealed by the protruding craspeda. This symptom is almost the • Brit. Zoopb. i. 235. 216 BUNODID^. invariable accompaniment of disease and death in crassi- cornis ; these organs are present in unusual profusion, and are forced out at ruptures of the integument, hy the con- tractions of the animal. The mesenteric membrane by which they are united to the septa is capable of great expansion: Sir John Dalyell has seen it protruded and spread up the side of a glass vessel, to the breadth of an inch. I have seen a similar phenomenon, but not quite to the same extent, in Peachia hastata. As in the case of A. mesemhryanthemum^ the ubiquity of this species renders a catalogue of its localities unnecessary: it is distributed everywhere on the British coasts. Of foreign species, so far as may be conjectured from published figures and descriptions (often imperfect), the following may belong to this genus : Artemisia (Dana) from N. W. America ; jyluvia (Dana) from Peru ; gemma (Dana) from Cape Verd Isles ; papillosa and ocellata (Lesson) both from Peru; oxidi fusco-ruhra (Quoy et Gaim.) from the Tonga Isles. Of these the first-named seems intermediate between the present species and B, thallia. B. thallia. [Artemisia]. CRASSICORNIS. H. MargaritEe. St. Churchiae. Sagartia. Anthea. Bolocera. [Phymactis]. Actinia. [Echinactis]. [Cystiactis], Tealia Greene: (Wright). Dr. E. P. Wright finds on the Irish coast a Tealia, which he thinks new, and for which he proposes the name of T. Greenei. The parapet is much smoother than in THE DAHLIA WARTLET. 217 crassi'cornis, the tentacles much longer and more slender, the warts fewer and of a purplish hue. He has favoured me with a spirited drawing of it, but I cannot satisfy myself that it is anything more than T. crassicornis. Tealia tuberculata (Cocks). In the Keport of the Cornwall Polytechnic Society for 1851, Mr. W. P. Cocks has described and figured a species, which he names Actinia tuherculata. " Body globular, light- brown, densely covered with large greyish-white tubercles, the apex of each tubercle depressed ; disk white ; mouth large ; lips thick, con-ugated, and everted ; tentacula nume- rous, large, obtuse, some bifurcated, others trifurcated. Diameter three and a half inches when contracted." By private communication I learn further particulars. It was obtained thirteen miles south-west from Falmouth, attached to a valve of Pecten maximus ; it lived with Mr. Cocks for some months. " Bulky, rather loose in texture, when fully expanded covering the bottom of a large pan, — it had the appearance of a mammoth heUis. It appeared to be ex- tremely irritable, and upon the slightest provocation would throw off from its body a large quantity of thick glaire, which, if allowed to remain, produced a disagi-eeable smell. When contracted it had the appearance of a half-boiled sago pudding." I ventured to suggest that it might have been a great colourless deep-water specimen of crassicornis; but ]\Ir. Cocks repudiates the identification, while he admits the relationship. The tendency of the tentacles to a monstrous fission seems to me its most marked peculiarity. It mai/ be distinct. 218 GENUS IV. HORMATHIA (Gosse). Base adherent; greatly expanded. Column pillar-like, much corrugated, surrounded by a single horizontal row of warts. Disk slightly concave ; scarcely exceeding the column. Tentacles moderately long and slender; perfectly retractile. There is but a single known species, H. Margarita. A STB^A CEA . B UNODIDJR. THE NECKLET. Hormathia Margaritce. Plate YIII. Fig. 1. Specific Character. White, with purple tentacles. Hormathia Margaritce. Gosse, Annals Nat. Hist. Ser. 3, iiL 47. ? Actinia nodosa. Fabbicius, Faun. Grcenl. p. 350; No. 341. GENERAL DESCRIPTION. Form. Base. Yery closely adherent to a living Fusus antiquus; far exceeding the column, and clasping the shell. Column. Skin delicate, much coiTugated transversely ; below the margin a horizontal row of large well-defined warts, about ten in number; summit extremely corrugated, and falling into radiating folds in incipient reti-acta- tion. A slight but distinct margin. Bisk. Slightly concave ; outline almost circular. Tentacles. Arranged in two or three rows, rather long, sub-equal, but the inner row somewhat longer than the outer; when fully expanded, curving over the margin. Mouth. Not raised on a cone, slightly corrugated. Colour. Column. White. I}lsk. White, streaked with very light brown. Tentacles. Dark reddish purple, without any markings. Mouth. Lip slightly yellow. Size. Diameter two inches ; height two inches. LocALrrr. Moray Firth, near Banff; deep water. 220 , THE NECKLET. For this magnificent species I am indebted to the kindness of the Rev, Walter Gregor, who obtained it in October last, from the lines of a deep-sea fishing-boat, and forwarded it to me. It was dead, however, when it reached me ; but his own careful notes and sketches, made while it was alive, have enabled me, in combination with my own imperfect observations, to characterize it as above. As he had never seen another specimen, I can add no more parti- culars of its history. The name of the genus I have formed from 6pjjia66<;, a necklace of pearls, and the English appellation perpetuates the same allusion. The specific name is given at the discoverer's request, in honour of a lady, one of his most esteemed friends. The unsullied pearly whiteness of the animal, as well as its necklace, gives a peculiar propriety to this name, — margarita signifying a pearl. The genus is aberrant in this family ; the paucity of warts, and the soft and thin texture of the skin, departing manifestly from the typical forms. It approaches the SagartiadcR through Adamsia palliata and Sagartia i^ara- sitica, with both of which it has obvious relations. T. crassicornis. Margarita. Sag. parasitica. St. Churchias. Ad. palliata. Sag. miniata. 221 GENUS V. STOMPIIIA (Gosse). Base adherent, expanded. Column pillar-like; without warts or suckers, im- perforate (?) ; skin much corrugated \ substance not at all cartilaginous, but soft and lax. Disk very protrusile. Tentacles perfectly retractile. Acontia not present. Only one species has been yet recognised, S. Churchicn. ASTR^A CEA . BVNODIDM. THE GAPELET. Stomphia Churcliim. Plate VIII, Fig. 5. Specific Oharactc)'. Body dashed with scarlet on white or yellow ; ten- tacles white, with scarlet bands. Stomphia Churchice. QossE, Ann. Nat. Hist. Ser. 3, iii. 48. GENERAL DESCRIPTION. Form. Sase. Adherent to rocks in deep water, expansile considerably beyond the column. Column. Very protean in shape, generally a short thick pillar, sometimes constricted hour glass fashion or like a dice-box ; the base sometimes detaches itself, and becomes very concave with sharp edges, or, on the other hand, protrudes as a low cone. Skin much and irregularly cor- rugated transversely, and also longitudinally from the margin a little way downwards, thus giving a decussate appearance to the upper portion. Margin distinct, but without parapet or fosse, the outer tentacles springing from the very edge. Substance pulpy, or softlj^ fleshy, very lax. Disk. Flat, but often protruded as a low cone ; radii well marked. Tentacles. About 60, arranged in four rows, viz. 6, 6, 12, 36; sub-equal, the inner slightly lunger than the outer, conical, much corrugated in con- traction ; when expanded, about equal in length to half the diameter of the disk ; generally carried horizontally spreading, or descending with the tips slightly up-curving. Mouth. Often widely opened. Lip sharp, protrusile, forming a narrow, low, circular wall. Colour. Column. Cream-white deepening to positive yellow, most irregulai-ly sprinkled with dashes and sti-eaks of rich scarlet, very much like a flaked carnation. THE GAPELET. 223 DUl:. White or yellowisli white, pellucid. Tentacles. White or yellowish white, pellucid, marked with three remote rings of scarlet, and, on the lower half of their front face, with two parallel stripes of the same hue, running longitudinally to the foot, sometimes confluent throughout or in part. These lateral stripes vary much in distinctness and size even in the tentacles of the same indi- vidual ; occasionally they run in upon the radii, and at times they are quite obsolete. Mouth. Edge of lip rich scarlet, " like the nectary of the Hoop-petti- coat Narcissus ; " the colour sharply defined without, but within blending off quickly into the throat, which is white and strongly furrowed. Interior of gonidial tubercles scarlet. Size. Column. Two inches and a half in height, and the same in diameter : flower about three inches in expanse. LOCALITT. All round the Scottish coasts, in deep water. Varieties. a. Lychniicha. The condition just described. /3. Inccnsa. The I'ed of the column predominant and almost wholly confluent, interrupted merely by a few yellow flakes. y. Extincta. Column and disk pure white ; lip faintly tinged with red ; tentacles having the usual scarlet bars and the scarlet foot-lines : the latter faint but distinct, and running in far upon the radii. S. Pijriylotta. Colours nearly as a ; but remarkable for its large size, and the short thick-set form of the tentacles, which give it a considerable resemblance to Tealia crassiconiis. In the month of January, 18.57, I was favoured with a communication from ]Miss Church of Glasgow, containing descriptions and figures of this showy and undescribed species, a specimen of which she liad procured in Loch Long, in the previous summer. It liad been brought up in tlic meshes of a turbot net. Its brilliant hues, and their flaked arrangement, the protean variability of its shape, and its vivacity, attracted her notice, as did also the fact that it discharged a multitude of globular ova, of the size of mustard-seed, and of a rich scarlet hue. 224 BUNODIDiE. Last May, Mr. C. W. Peach, of Wick, sent me numerous sketches, some of which were coloured, of an Anemone whicli lie had obtained at Peterhead, in April, 1850, and again in December, 1851 ; on each occasion from the hook of a fisherman's deep-sea line. These were manifestly identical with Miss Church's specimen. It was not, however, until October, 1858, that I became, through the kind zeal of the llev. W. Gregor, of Macduff, personally acquainted witli this fine species. Within three months he has sent me, on different occasions, half-a-dozen individuals, including all the varieties distinguished above, which argues its variability of character. This gentleman has been familiar with it for several years, as a not im- common inhabitant of the deep water of the Moray Frith. It is observable that all the specimens on record have been obtained by means of the deep-sea fishing boats. The generic name I have formed from oll.BAlANOPHyLLlA ■'■'■'■■' i.CYArmNASMi 309 GENUS 1. CAilYOPllYLLIA (Lamarck). CyathiiM (EiiKENB.). Corallum simple, generally obconic, often with an expanded base, permanently adherent ; outline ovate or circular. Columella composed of several thin, narrow, twisted, vertical plates. P alleles broad, entire, in a single circle. Plates straight, broad, projecting, and forming six systems. Bibs straight, develo]3ed only towards the summit, granulated. The animal (for so we may conventionally term the soft tissues, though it is to be remembered that the corallum is an essential part of the living body) is, so far as we know it, translucent, the colunni very exten- sile, the disk protrusile, the tentacles set in several rows, diminishing in size from the outer row inward, each consisting of a stem with a globular head. I know but one British species, C. Smithii. CA R YO PIT YLL J A CEA . TURBINOLIA DJ?. THE DEVONSHIEE CUP-COEAL. CaryophyUia Smithii. Plate X, Figs. 12, 13.* Specific Character. Plates in five cycles ; base broad ; outline generally ovate ; height not exceeding the long diameter. CaryophyUia Smithii. cyathus. sessllis. ? Turhinolia borealis. Cyathina Smithii. Stokes, Zool. Journ. iii. 481; pi. xiii. figs. 1—6. BucKLAND, Bridgew. Tr. ii. 90; pi. liv. figs. 9 — 11. Johnston, Br. Zooph. Ed. 2, 198; pi. xxxv. figs, i — 8. Couch, Corn. Fauna, iii. 72 ; pi. xii. fig. 3. GossE, Dev. Coast, 108 ; pi. v. figs. 1 — 5. M. Edwards, Hist. Corall. ii. 14. Fleming, Brit. Anim. 508. Bellamy, So. Devon, 267 ; pi. xviii. Fleming, Brit. Anim. 509. Dana, Zooph. 371. M. Edwabds and Haime, Ann. Sci. Nat. Ser. 3, ix. 288. Gosse, Man. Mar. Zool. i. 33 ; fig. 50. GENERAL DESCRIPTION. cartophyllia smithii (slir/htly marjn ified). Section of coratlum. CORALLUM. Corallum. Simple, constricted in various degrees ; the base generally wider than the summit, and the central region being often less than half the diameter of the latter. Outline sometimes circular, but geuei'ally more or less elliptical. Height in general less than the long diameter. Ribs. 'Well-marked on the upper half, less distinct on the lower, studded with fine grauules. Plates. Forming five cycles, and six systems, but the plates of the fifth cycle * Marked in the Plate " Cyathina Smithii." THE DEVONSHIRE CUP-CORAL. 311 are wanting in some of the systems. They are broad, granular on both surfaces, with the upper edge very salient and rounded in outline. Those of the third and fourth cycles subequal between themselves, and much smaller than the first and second, which also are mutually subequal. Columella. From twelve to twenty thin plates much twisted, with sinuous edges ; the summits much lower than the palules. Palulcs. Well-developed, more flexuous than the sejita, of which they correspond to the third cycle. Colour. In general pure white, but in some specimens tinged with a lovely permanent rose-tint. ANIMAL. Form. Column. Cylindrical, very extensile, smooth, membranous, invected towards the summit, each invection becoming a tentacle, without any distinct margin. Disk. Flat, but readily assuming a conical form. No trace of gonidial radii, tubercles, or groove. Tentacles. About fifty in number, arranged in three subequal rows : stem conical, membranous, translucent, studded with transverse oblong warts ; head globose, opaque, covered with palpocils. (Plate xii. fig. 4.) Mouth. A lengthened ellipse or a slit. Lip coarsely furrowed, like the lips of a cowry-.shell. Stomach flat when empty, as in Anemones. All the tissues can be enormously distended with water. Colour. Column. A very faint bay or fawn colour, with longitudinal lines of chestnut. Disk. Transparent white, with a broad Vandyked circle of rich chestnut surrounding the mouth. Tentacles. Stem-wall colourless, with the warts deep chestnut ; head opaque, pearl-white, sometimes slightly tiugsd with rose. Mouth. Pure white. Size. Coralluvt. Fine specimens attain a diameter of three-fourths of an inch, and a height nearly as great. Animal. The column when distended frequently stands an inch above the corallum, and exceeds it in breadth by a sixth of an inch on every side ; the tentacles augment the height still further by nearly half an inch. LOCAUTT. On various pai-ts of our coast in deep water, attached to stones and shells : Devon and Cornwall, on rocks between tide-marks. 312 TURBlNOLIADiE. Varieties, a. Castanea. As above described. /3. Esmeralda. The chestnut here replaced by vivid green in like intensity, except the border of the mouth, which is pale red. 7. Clara. Translucent white. On the perpendicular surfaces of cliffs with a northern aspect, in narrow wall-sided fissures, and on the under sides of fallen fragments of rock forming natural arches, and in dark overhung tide-pools, I have found this beau- tiful Coral in abundance on the coast of both North and South Devon. It is only at the great recesses of the equinoctial spring-tides that it is exposed, though in per- manent pools of ample dimensions it occasionally occurs at the half-tide level. For the most part gregarious in habit, it occurs more in colonies than singly, and twenty, thirty, and even more, are occasionally taken by the collectors from a single pool. It is deservedly a favourite with aquarians ; for if removed from the rock with care by a proper use of the chisel, scarcely any species is more hardy, more beautiful, or more changeable in its aspects. I have been informed of a specimen which had been preserved two and a half years, and was then in health. It is free in expanding in captivity ; perhaps its most common condition being that in which the mouth is somewhat open, and the tentacle- heads just peeping from beneath the half-closed margin of the column ; but occasionally, and especially at night, the animal expands to the full, and rears its lovely form far above the level of its stony walls. This condition may, however, at any time be induced by a proffer of food ; an atom of raw flesh cautiously laid on the half-exposed disk is a temptation too great to be resisted. The protrusile lip slowly but evenly expands to embrace the food, and then closes over it, meeting in a puckered knot in the |i THE DEVUNSIIIKE CUP-COKAL. 313 centre. The unyielding stony margin of the machal cavity preventing the morsel from being drawn down, as it would be in an Actinia, the whole disk projects perpen- dicularly, like a thick pillar, from amidst the tentacles, displaying the dark mass through the pellucid walls. Now presently a great change takes place : the whole of the soft tissues become distended with water, and take on an exquisite translucency and delicacy ; the column swells out to twice the width of the corallum, the tentacles are like transparent bladders full of water, each crowned by its little white globule, and the whole appearance is most beautiful. I have seen under these circumstances the animal extended to more than an inch and a half above the level of the plates. The lip often projects like a thin oval wall, or like the brickwork surrounding a well ; marked with thick perpendicular ridges of opaque white, distinctly defined, separated by interspaces of equal width. This is well expressed in the figures (5 and 6) given by Johnston, after Alder, which are very accurate : figs. 7 and 8 of the same plate, like too many of the zoophytic deli- neations of Forbes, I can only call caricatures. I have elsewhere * given many details of the structure and economy of this Coral, to which I can here only refer the reader. Among them will be found some curious examples of reproductive power ; one, in the formation of a new disk, mouth, and tentacles, at the lower end of the coralliim, which had been broken from its base ; and another, of the replacement of a large number of the sej)ta, which had been broken away. Of the generation and development of the species I can say nothing from personal observation ; the smallest I have seen having been about one-sixth of an inch in diameter, with a well-formed coraUum of half a line in height. * Devonshire Coast, pp. 108 — 127. 314 TURBINOLIAD^. Mr. E,. Q. Couch, however, says, " In the youngest state the animal is naked, and measures about the fifteenth of an inch in diameter, and about the thirty-second of an inch in height. In the earliest state in which I liave seen tlie calcareous polypidom there were four small rays, whicli were free or unconnected [i.e. without any wall] do^vn to the base ; in others I have noticed six primary rays, but in every case they were unconnected with each other. Other rays soon make their appearance between those first formed ; they are mere calcareous specks at first, but after- wards increase in size. The first union of the rays is observed as a small calcareous rim at the base of the polype, which afterwards increases both in height and diameter with the age of the animal."* From a valuable series of observations made by Mrs. Thynne,-)- it would appear that the Caryophyllia discharges its ova in spring, which in about two days become rotating infusorioid animalcules. In a week or two these affix themselves, and develop tentacles and a disk, and gradually grow to the size, and even far more than the size, of tlie parent, witli all the characteristic colours and marks, hut without the least trace of a corallum. During the progress of this condition, tlie individuals increase rapidly by spontaneous fission, the separated portions immediately becoming independent animals. It is difficult to suggest any flaw in the evidence of identity ; but it is to be regretted that the experiments terminated without any sign of the development of a corallum. Double and even triple specimens are not unconnnon ; and I have seen at least two examples (one of which I now possess) that are fourfold. J The appearance of such speci- mens is exactly that of a branching coral ; and, strange to * Quoted ill Johnston's Br. Zoopb. i. 199. t Ann. N. H. for June, 1859. + Such a Bpecimeu I have figui'ed in my Dov. Coast, pi. v. fig. 5. te^B' THE DEVONSHIRE CUP-CORAL. 315 say, if one alone of the disks be fed, the rest will presently become equally distended, as if partaking of a common life. On breaking one of these double skeletons, however, no communication is found to exist between the cavities ; and hence we must conclude that such instances are due to the accidental fixation of two or more gemmules in close proximity to each other, and the coalescence of the cal- careous walls in process of growth. The name Caryophyllia is formed of Kapvov, a nut, and (f)v\\ov, a leaf, — q.d. " a nut of leaves" = plates. The specific name is in honour of Thomas Smith, who appears to have first observed it on the south coast of Devon. A curious little Barnacle {Pyrgoma Anglicum) is para- sitic on this species, affixing itself to the outer edge of the plates ; two are sometimes found on the same coral. The corallum is very hard. An hour's rubbing of one on a slab of marbl: rough from the saw, with a view to a longitudinal section, produced little efiect on the coral, though it effectually polished the marble. The following list of habitats show that the species is widely scattered around our coasts. Shetland (deep-water), Fleming: [Moray Firth (d. w.), W. G. : Guernsey (low-Avater), T. I). H. : Torquay (1. w. abundant, d. w. rare), P. 11. G. : Dartmouth (1. w.), E. W. H. H.: Cornwall (1. w. abundant), R. Q. C. : Tlfracombe (1. w. abundant), P. IF. G. : Oban, J. A.: Larne (d. w.), G. D. (b.) .• Lambay, It. Ball: Dalkey Sound (1. w.) Pi. B. : Wexford Bay, W. M' Calla : Nymph Bank (d. w.), W. T. : Youghal, P. B. : Bantry Bay (1. w. common), E. P. W.: Connemara, W.M^C: Bundoran, R. B.: Lough Swilly (d. w.), G. D. (B.) : Lough Foyle (d. w.) G. D. (b.) Corynactis. Smith 1 1, [cyathus]. 316 GENUS II. PARACYATHUS (M. Edvv. & Haime). Corallum simple, subturbiiiate or cylindrical, with an expanded base, permanently adherent. Columella very broad, terminated by a papillous surface, and formed by processes that appear to arise from the lower part of the inner edge of the septa. Pahtles of divers orders, forming two or more circles ; in general lobed at the summit, narrow, tall, and appearing also to arise from the lower part of the inner edge of the se2:)ta, their size diminishing as they approach the columella. Plates nearly equal, very slightly salient, and closely set ; their lateral surfaces strongly granulated, and sometimes presenting traces of imperfect dis- sepiments. They form four or five cycles, and the systems are equally developed. Bibs nearly equal, straight, closely set, projecthig very little, and delicately granulated, ANALYSIS OF BRITISH SPECIES. Plates forming five imperfect cycles : cup elliptical . . . Taxiliounus. Plates forming four imperfect cycles : cup circular . . . Ribs obsolete below Thulensis. Ribs very salient below pteropus. CA R YOPH YL LI a CEA . TURBINOL I A D.E. THE MORAY CUP-CORAL. Paracyathits Taxilianus. (Sp. nov.) Plate X. Fiy. 6. Specific Char art er. Plates in five imperfect cj'cles ; calice elliptical ; ribs notched above, granulous below. GENERAL DESCRIPTION. Corallum. Slightly turbinate, adhering by a base broader than any other part, a little diminishing towards mid-height, and widening gently above and below. Wall thin. Height about equal to the medium diameter. Hibs. Distinct from base to margin ; on the upper half prominent, thin, with a rather sharp, but irregularly notched edge, separated by inter- costal furrows of about twice their width ; on the lower half forming low rounded ridges, crowned with conical granules, set in two or three in-egular longitudinal rows ; all are nearly alike in every respect. Calice. Elliptical ; the axes as 24 : 31. ir. iaail,ia.>u: ^ ' ( magnified). Plates. Forming five cycles and six .systems ; ^ portion cut away to but those of the fifth cycle are wholly wanting shoio the plates. in three systems, and present in both halves of the other three. Not very close-set, not very salient, thin, very little thick- ened externally, the highest point of their edge a little within the margin, whence it slopes very slightly inward and downward, in an undulate line, ending with an abrupt angle, whence the inner edge descends perpendicu- larly : the entire edge rises into irregular eminences and blunt points, find both surfaces are roughened with coarse granules. Columella. Formed of two or three much twLsted lamellaj, with broad rounded lobes, rising from the united palules. Pahdes. Thin, waved, lobed and granulate, like the septa ; those of the tertiai-y septa large ; the others inconspicuous, and only here and there discernible ; united in the centre into an irregularly waved and perforated horizontal plate. P. TAXILIANUS 318 TURBINOLTAD^. Size. Diameter of long axis, -31 inch ; of short axis, "24 ; height '21 to -14, unequal because the corallum is built partly on a shell and partly on a Serpula tube adhering to it. Animal. Unknown. Locality. The Moray Firth ; deep water. It is with some doubt that I re er this and the two following species to the genus Paracyathus. Generally agreeing with its characters, they all have the peculiarity of the union of the palules into a horizontal perforate platform, which does not appear to be the case with any of the hitherto described species. The single specimen on which the above description is founded was forwarded to me by my kind friend, Mr. Gregor, of Macduff, who obtained it from deep water. It is affixed to the inside of an old valve of Ci/prina Islandica, and has the appearance of being recent. The only species of Paracyathus with which this is likely to be confounded is the fossil P. crassus of the London Clay : but from this it may be distinguished by the union of the palules, by the ribs being proportionally thinner and more remote, and by the diversity of their upper and lower portions. Paracyathus is derived from irapa, near, and Kva6o<;, a cup (the element of Cyathina). I have assigned a specific name from Taxilium, the ancient appellation of the pro- montory now called Kinnaird's Head, off which the specimen was taken. Caryophyllia. Taxilianus. crassus. CAJi YOPHYLLIA CEA. TURBINOLIADuS. THE SHETLAND CUP-CORAL. Paracijatlms ThuJensis. (Sp. nov.) Plate X. Fig. 8. Specific Character. Plates in four imperfect cycles ; calice circular ; height equal to half the diameter. GENERAL DESCRIPTION. Corallum. Slightly turbinate, adhering by a base, which, though broad, is the narrowest part. Height about half the diameter. Eibs. Prominent on upper half, becoming ob- solete below ; their edges set with tooth-like coni- cal tubercles ; separated by intercostal furrows, which on the whole equal the ribs in width, but both are irregulai'. Calice. Circular, shallow. Plates. Forming four cycles and six systems ; those of the fourth cycle wanting in the halves of four systems, and present in both halves of the other two. lather wide apart, moderately salient, rather thick, scarcely thickened externally ; out- line of their upper edge forming a flattened arch, but not uniformly, in some the highest point being at the margin, in others far within ; inner edge nearly perpendicular : entire edge set with irregular eminences and blunt points : both surfaces studded with coarse granules. Columella. A single flexuous plate with a somewhat tri-radiate summit, united below to the palules. Palules. Indistinct, being confluent, and sending off horizontal traverses to the septa, so as to form an irregular perforated horizontal lamina, whence the columella rises. r. TIU-l.rNsis ( marjnificd ). Vertical aspect of coi'alltim. Size. Diameter '19 inch ; height "l. Animal. Unknown. 320 TURBINOLIAD^. Locality. Shetland Isles ; Moray Firth ; deep water. Looking over the cabinet of Dr. Ilowden, of Montrose, last winter, my eye fell on this little Coral, which seemed new to me. Its owner was so kind as to transfer it to my possession, when, on careful examination, it proved to be an unrecognised species, with the characters above enumerated. It may be distinguislied from P. caryophyllus by the relative proportion of the height to the diameter, and from all other described species by the number of septal cycles. Dr. Howden dredged the specimen off Ord Head in Bressai Sound, Shetland, in thirty or forty fathoms, on a bottom of small stones, to one of which it is attached. In March of the present year Mr. Gregor sent me, on a valve of Lutraria, a specimen, which appears to be of the same species, but of younger age. It is not more than half the size of the former, but in other particulars agrees sufficiently. On my putting it into sea-water on its arrival, the pellucid flesh came up and filled the intersepts, giving satisfactory evidence of its freshness. Unfortunately it had been sent through the post, packed dry ; it was probably alive when despatched. The whole corallam in this speci- men is of the purest translucent whiteness. It came up on a fisherman's line from the Moray Firth, in about forty fathoms^ hard bottom. The specific name is from Thule, tlie ancient designa- tion, as presumed, of the Shetland Isles. Taxilianus. Thulensis. pteropus. \ CA R YOPH TLLIA CEA . TURBINOLIA D.f:. THE WINGED CUP-CORAL. Paracyathus pteropus:. (■■^p. nov.) Plate X. Fig. 7. Specific Character. Plates in four imperfect cycles ; calice circular ; ribs very salient, dilating into wings below ; height less than half the diameter. GENERAL DESCRIPTION. Corallum. Cylindrical, adhering by the entire breadth ; height less than half the diameter. Ribs. Thin, nearly straight, sub-equal, separated by intercostal spaces about thrice their width, very salient throughout, but from the middle downward developing into triaugular buttresses, the long lower edges of which are adherent to the support, so that the area inclosed by their points is far wider than that inclosed by the wall : their whole surface, as well as that of the intercostal spaces, has a slightly carious, but glossy appearance, not exactly granular. Calice. Circular, shallow ; the margin in the same plane. Plates. Forming four cycles and six equal systems, those of the fourth cycle wanting in half of each system. They are wide apart, being separated by twice or thrice their own thickness, thin, salient, but unequally so, some of the primaries and secondaries rising to twice the height, above the wall, of the tertiaries, but others are more nearly equal ; their planes are more or less waved, and their surfaces set with scattered blunt eminences : upper edge truncate, nearly horizontal, but slightly declining inwards, and rising with an abrupt blunt point at the inner edge, which then descends perpendicularly. Columella. A single flexuous plate, united below to the palules. Pitlu'cs. Distinct, united to the inner edges of the primary and secondary plates, and to some (not all) of the tertiarj- ; they are thick, very sinuous, their surfaces set with rounded eminences, and their upper edges much p pxebopus lobed; they are united by their inner edges (corailum magnified). into an irregular horizontal platform, out of the centre of which rises the columella. 322 TURBINOLIAD^. Size. Diameter from wall to wall "13 inch : lieight 'CS. Animal. Unknown. Locality. The Moray Fii-th, deep water. For this very distinct and remarkable little Coral I am indebted to Mr. James Macdonald, of Elgin, who obtained it from Lossiemouth, in October, 1858, attached to a valve of Gyprina, from the deepest part of the Moray Firth. There is no other species with which it can possibly be confounded, the expansions of the ribs j^reseuting a ^■ery striking character. They remind me of the immense but- ti-esses which surromid the base of the giant Ceiba of the Jamaican forests. To this feature I have alluded in tlio specific name, v/hich is formed from -mepov, a wing, and TToO'f, a foot. My friends, Messrs. Macdonald and Gregor, speak of other Corals having at various times come under their notice, but they had always been set down, like these now recorded, as Caryo^jliyUia Smitldi. It is by no means improbable that further research may considerably aug- ment the list of our living- Corals. Tliulensis. PTEROPUS. ^1 323 GENUS III. SPHENOTROCHUS (M. Edw. & Haime). TurbinoUa (Lajiarck). Corallum simple, free, with no trace of adherence, wedge-shaped, the superior extremity wider in all directions than the inferior ; transversely elHptical. Columella, a single lamina, occupying the greater axis of the calice : its upper margin flexuous and bilobate, Palules entirely wanting. Plates extending to the columella, or meeting in the centre of the visceral chamber ; broad, slightly salient, forming three cycles, and six systems. Bibs broad, not very prominent, in general crisped, or represented by a series of papillous tubercles. ANALYSIS OF BRITISH SPECIES. Corallum uniformly diminisliing downward ; riba smooth . Macandrewanus. Corallum pedicellate, with swelling nodes ; ribs crisped . Wrighlii. T 2 CA R YOPH YLLIA CEA . TURBINOLTAD^. THE SMOOTH-RIBBED WEDGE-CORAL. Sphenotrochus Macajidreioanus. Plate X. Fig. 4. Siiecific Character. Corallum uniformly diminishing downward; ribs smooth, not salient ; edge of calice plane. Turbinolia milletiana. Thompson, Annals N. H. Ser. 1. xviii. 394. Johnston, Br. Zooph. Ed. 2, i. 196; pi. XXXV. figs. 1—3. E. P. Wright, N. H. Rev. vi. 122. GossE, Man. Mar. Zool. i. 32 ; fig. 49. Sphenotrochus Andrewiamts. M. Edwards and Haime, Ann. d. Sci. Nat. Ser. 3. ix. 243 ; pi. vii. fig. 4. Macandmoanus. M. Edwards, Hist, des Corall. ii. 70. GENERAL DESCRIPTION. Corallum. An inverted cone, compressed, lengthened, straight, with the inferior extremity forming a wedge-like blunt point. Bihs. Perfectly straight, smooth, nearly equal throughout, or slightly enlarged above, separated by intercostal spaces about twice as wide as themselves, moderately prominent, continued round the edge of the scar where the corallum was originally attached. Calice. The edges on the same horizontal plane ; outline elliptical, in the ratio of 100 : 120. Plates. Twenty-four ; in three complete and well-develoi^ed cycles, close-set, straight, thick at the margin, and gradually thinning towards the centre of the calice ; salient, ai-ched at their upper edge, with a surface very slightly granulose. The primaries and secondaries are subequal and similar, and hence the appearance of twelve systems ; each of these is united with the columella by two diverging laminae, as if the plate were split at its inner edge, and the two halves separated. Columella. A single, thin, vertical lamina. Size. Height half an inch ; diameter of calice one-fourth of an inch by one-fifth. THE SMOOTH-RIBBED WEDGE-CORAL. 325 Animal. Undescribed. Locality. The coasts of Cornwall and G;ilway : deep water. I am Sony that I can give no information about this species additional to what is already known, viz., that it exists in a living state on om* coasts, and that the skeleton is preserved in cabinets. That in the British Museum is the only one that I have seen. As long as naturalists con- tent themselves with merely preserving the skeletons of the animals they meet with, but little progress can be made in a knowledge of their history.* The present species is said to have been dredged alive off Scilly, by Mr. MacAndrew, after whom it has been named, and off Arran, on the west coast of Ireland, by Mr. Barlee. The generic name is from (rc}>rjv, a wedge, and Tpo^o'i, a top, in allusion to the form of the corallum. S. milletianus, with which this has been confounded, is a fossil of the miocene period, with a thicker point, and a more elliptical calice. intermedins (Jvss.). Macandrewanus. [Roemeri {Jbss.).'\ * M. Milne Edwards has fallen (Hist. Corall. ii. 70) into the strange inadvertence of supposing that the figure given by Johnston (Br. Zooph. Ed. 2, pi. XXXV. fig. 7), of the living animal, belongs to this species ; though the text distinctly says it is a Caryophyllia Smithii. The figure is poor enough, it is true. CARYOPHYLLJACEA. . TURBINOLIAL.E. THE KNOTTED WEDGE-CORAL. Sphenotroclins Wrightii. Plate X. Fig. 3. Specific Character. Corallum pedicellate, with swelling nodes; ribs papilliferous on the body, and crossed with zigzag folds on the pedicel. Sphenotrochus Wriglitii. CtOSSE, Nat. Hist. Review, -vi. 161 ; pi. xvii. figs. 1—1. GENERAL DESCRIPTION. Corallum. Simple, straight (or else with the base considerably curvecl laterally), compressed above (the axes of the disk being GO : 42 in general ; in one example, however, GO : 50), but rounded in the lower two-thirds, pedicellate; the body and the pedicel varying exceedingly in their rela- tive proportions, the former being to the latter as 1 : 5 in one example ; in another, as 1 : 1; in another, as 1 : 1'2, — no two of the four specimens in my possession being alike in this respect. The pedicel is surrounded by four to six constrictions, varying greatly in their relative distance : these separate nodes are more or less swollen, of which one, a little above the base, is usually more ventricose than the rest; the pedicel generally enlarges upward.^, but its distinction from the body is marked by an .ibrupt shoulder. Mils. About as wide as the interspac3s, distinctly traceable only as far down as the termination of the body ; their course is irregularly angular ; the primaries and secondaries terminate at the shoulder in prominent knobs. On the pedicel only the six primaries are distinguishable, and these are then crossed by numerous strongly indented zig-zag folds, of which the higher angle is on the rib, the lower in the interspace. All the ribs of the body-region are'studded with irregularly projecting points or papillary eminences. Ba.^e. A small but distinct circular cavity, into which the extremities of the six primary ribs project. WKTonTir Calice. Considerably arched, the short axis being much (magnified), the higher; rather deep. Plates. Twenty-four, in three cycles; the lateral primaries and secondaries more developed than the terminal ones ; moderately close- liot, irregularly bent in their planes, thick exteriorly, suddenly diminishing TIIK KNOTTED WEDGE-COKAL. 327 just -within the wall, ami theuce gradually becoming tbiuncr. The primariee and secondaries equal in height and breadth ; the teitiaiiea much lower ; all salient, the upper edge obliquely truncate, sloping down from the Tiiargin inward. The two plates which form the short axis arc united to the columella by diverging lamina) ; but this structui-e appears to be wanting in the others. The surfaces of all the plates are rough, with scattered papillary points. Columella. Bent at each end towards one (the same) side ; its upper edge thickened in irregular swellings. In some specimens it is not visible from above. Size (of four examples). NO. T.OXG AXIS. SHORT AXIS. HEIGHT. 1 . . . 0-03 inch . . . 0-062 . . . . 0-155 2 . . . O-OG „ . . 0-042 . . . . 0140 3 . . . 0-06 „ . . . 0-050 . . . . 0-110 4 . . . OOG „ . . . 0.042 . . . . 0-144 AxiMAL. Unknown. Locality. North-cast coast of Ireland : deep water. This spccie.s resembles >S'. crispus in its zig-zag folds, Imt lias more agreement witli >S. mixtus in its general characters. In its tendency to a curved form, however, as well as in it.s pedicellate cluaracter, and cspeclallj in the presence of a well-formed basal area, which appears to have been a point of adhesion, it displays so much affinity with Ceratotrochus (according to the diagnosis of M. !^[ilne Edwards) that I was at first disposed to assign it to that genus. The four specimens that I have above described liavc been entrusted to me by my kind friend, Dr. E. Perceval Wright, of the Dublin University, with whose name I have honoured the species. They were dredged by G. C. Ilynd- man, Esq., among shell sand, from a turbot bank off the coast of Antrim, in 1852. I have introduced the tiny form into this work, believing it to be an existing, and not a fossil species. Professor 328 TURBINOLIAD^. Milne Edwards, indeed, considers the SjyhenotrocM with papillate and crisped ribs to be in no case later than the eocene deposits ; while those with smooth ribs he looks upon as invariably belonging to higher strata, and reaching to the present period : but this is a canon which a new species may at any moment overturn, if it be not already subverted by the 8. nanus (Lea) of the eocene of Alabama. Dr. E. P. Wright mentions, as a suspicious circumstance, that many pleistocene shells do exist in the bed of shelly sand, where these specimens were found. But this does not confirm Professor Milne Edwards's rule ; for, so far as that could decide the question, it would prove not only that this crisped Coral is not recent, but that it is certainly as old as the miocene. Dr. Wright says : — " I have reason to think, however, that they are not fossil;" and the same is my own impres- sion, though I can scarcely assign any definite grounds for it, except the fresh appeara.nce of one or two of the speci- mens. Some of them are rubbed, and one is polished externally. The uniformity in size of the individuals, and the full development of the plates, indicate a probability that, minute as they are, they have attained adult age. [mixtus {fuss.).'] [crispus {fvss.).'\ Wriohtii. [Ceratotrochus {foss.).'\ 329 GENUS IV. ULOCYATHUS (Sars). Flabellum (Gray). Corallum simple, free, turbinate, with traces of adherence (in the young state) on a very short wedge- shaped crooked pointed base. Columella and palules entirely wanting. Bibs not at all prominent, sometimes obscure. Flates very thin, high, very salient above the margin of the cup, distinct throughout their length. Calice very deep ; the margin sinuous and crisped. ANiMAii resembling that of Carijopliijllia. Only one species has been recognised, JJ. ardicns. ULOCYATHUS ARCTICUS {after Sart) sliyklhj magnified. CA R YOPH TLLIA CEA . TURBINOLTADJ':. THE SCARLET CRISP-COllAL. Ulocyalhus arcticus. Hpp.c'ific Cliaracter. Base triangular ami flat, bouudcJ by a sharp cJgc : calice round. riocyathus arcticus. Sabs, Fauna Litt. Xorv. ii. 73 ; jjI. x. figs. 18—27. F'abeUum MacAndrcwi. J. E. Gray, Proc. Zool. Soc. May, 1S49 : pi. ii. figs. 10, 11. GENERAL DESCRIPTION. CORALLUM. Corallum. Simple, free, but with traces of having been adherent iu infancy : the base with a great inferior surface, triangular, flat, often concave, separated from the superior surface, which is equally triangular and convex, by a sharp edge on each side. liibs. Large, often indistinct, unec^ual ; the primaries sometimes armed with minute tubercles. Calice. Very wide and deep ; the edge almost circular, crisped with minute sinuosities. Plates. Those are so irregular that it is difiicult to count the cycles, but they are at least four. Those of the first and second are more than twice as high as the rest, and reach to the centre of the cup, where they unite, but irregularly : the others are lower and shorter in gradation, the lowest projecting little within the margin. All are perfectly separate throughout, extremely thin, sharp-edged, the surfaces set with minute granules often running in curved lines : the free edge of all is arched, and their greatest width is one-third from the summit. The primaries and secondaries are veiy salient, and the edge of the calice seen iu profile forms eleven or twelve trianguhtr lobes. Columella and jmlides wholly wanting. ANIMAL. Form. Cohiiiin. Actinia-like, without any trace of gemmoo. Disk. Radii fine, distinct. Tentacles. About 140, in four rows, close-set, irregular; the innermost three or four times as large as the outermost : stem cylindro-conical> THE SCARLET CRISP-CORAL. 331 covered with large round prominent warts ; head globose, smooth, imper- forate ; very contractile, but not retractile. Mouth. A wide slit in the direction of the long axis : lip crcnate, Avith forty to sixty-five deep furrows. Colour, A brilliant orange-scarlet; a little lighter on the inner tentacles: the furrows of the lip intense blood-red. Size. CoraUum. About one and a half inch in diameter, and a little less in height. Locality. The coasts of Norway and Shetland : deep water. Of this species, by far the largest and noblest of tlie simple European Corals, a specimen was dredged by Mr. ^lacAndrew about twenty-five miles off East Shetland, in ninety fathoms. The individual v/as broken by the dredge, and only a portion of the corallum was secured, which is now in the British Museum. There can be no doubt, however, of its identity. A considerable number of examples have been obtained by Mr. Sars at Oxfjord, close to North Cape, the extreme northern point of Europe. It lives at an amazing depth, even from 150 to 200 fathoms, where the pressure of tlie superincumbent water must be immense. Clear as are the waters of the northern seas, so vast a volume of water must surely absorb nearly the wh^le of the rays of lit^ht, and the rich hues of the animal are therefore tlie more remarkable. It lies free on the mud or clay, never having occurred with evidence of recent attachment. The generic name is formed from ouA.09, crisped, and Kvado<;, a cup. [Desmophyllum.] ARCTICUS. [Flabcllum.] 332 FAMILY IV.— OCULINAD^. The corallum in this family is solid (not porous), com- pound, increasing by gemmation so as to take a form more or less branching and tree-like. The stony tissue is very compact, the surface smooth, delicately striate near the calices, or but slightly granular. The walls of the co7-aIIttes (or stony skeletons of the individual polypes) are not per- forate, not distinct from the common tissue {coPMenchyma) , and increase by their inner surface, so as gradually to fill up the cavity from below upwards. The interseptal chambers are only imperfectly divided by a few dissepiments, or horizontal projections of stony matter shot across. The plates {septa) are entire, or have the upper edge slightly divided ; they are well developed, and are few in number. We have but one native representative of this family, the genus Lophohelia. 333 GENUS I. LOPHOHELIA (M. Edw. & Haime). Madrepora (Linn.). Oculina (Lamarck). Lithodendron (Schweigqer). Corallum tree-like, or forming a branching tliicket, the branches coalescing; the form results from a gemmation irregularly alternate and sub-terminal. There is no true coenenchyma, but the walls are very thick, scarcely ribbed. Calices having a deep cavity, with a reverted lamellar edge. Columella and palules wanting. Plates entire, salient, unequal, the principal ones united towards the lower part of their inner edges, at the bottom of the visceral cavity. There is but one known British species, Z. prolifera. CARYOPHYLLIACEA. OCULINAD^. THE TUFT-CORAL. Lophohelia prolifera. Plate X. Fig. 1 {reduced). Specific Character. Corallites cylindrical. Madrepora prolifera. Likn. Syst. Nat. Ed. 12, 1281. Ellis and SoLANDEU, Zooph. pi. xxxii. figs. 2—5. EsrER, Pflanz. i. 104; Madr. pi. xi. Lithodendron proliferum. Schweigger, Haudb. dcr Nat. 416. Oculina prolifera. Lamarck, An. s. verteb. ii. 286. Lamodr. Exj). mdth. C4 ; pi. xxxii. figs. 2 — 5. Dana, Zoopli. 393. Lophohelia prolifera. M. Edw. and IIaime, Ann. des Sci. Nat. Ser. 3. xiii. 81. M. Edw. Hist. Corall. ii. 117. GENERAL DESCPJrTION. Corallum. Forming a massive, compact, many-branched tree, rising from a slender base, permanently attached to rocks. Coralliles. Free laterally, iu general buddiug only once or twice, cylindrical, or but slightly expanding at the summit, modei-ately long. Exterior surface covered with very minute close-set granules, without ribs, except very faint marginal traces. The margin is often surrounded by a thin lamellar expansion. Plates. Systems generally une-jual and irregular, being formed of seven, or five, or three derived plates, but easily recognisable by following the development of tlie primaries, which are far greater than the others. The platen themselves arc thick in the centre and towards the margin, but are thinned off to a sharp edge, which is irregular in outline, but not notched ; their surfaces covered with minute granules. The principal ones, from eight to twelve in number, are stouter and far more salient than the rest. Walls. Very thick and dense, gradually filling up the bottom of the cavities. SiZK. The individual corallites are from one-fourth to half an inch iu height and diameter. The dimensions of the compound mass vary according to THE TUFT-CORAL. 335 ngc : the specimen figured is about tea incliea ia height, and seven iu diameter. Animal. Uudescribed. LOCAUTY. The north-western coasts of Europe : deep water. The figure in Plate X. is taken from a noble specimen, midoubtcdlj British, reduced to half the natural size. 1 am indebted for the opportunity of delineating it to the kindness of Professor Dickie, of Belfast, who was at the pains of having several photographs taken from it for my use, and favoured me also with many fragments including ])erfect corallitcs. Dr. Dickie informs me that it Avas obtained from deep water off Skye, in 1852, by means of the deep-sea lines of a fisherman, who presented it to him. He mentions having seen another British example, in the possession of Professor Fleming, the same that the latter exhibited before the Eoyal Society of Edinburgh iu 1846, and which had been taken in the previous summer, by fishermen whose lines had become entangled with it in the sea between the islands of Rum and Eig. This specimen, which weighs six pounds, is preserved in the IMuseuni of King's College, Aberdeen. A third example is alluded to by Johnston, who was informed by E. Forbes that certahi published figures of the species " had recalled to his mind a very large specimen in the possession of Dr. Edmonstone of Orkney." It is to be regretted that we possess no information of the living animal of so fine a Coral, the only British example of the truly dendroid species. The name Lopliolielia is formed from X6^o<;, a tuft, and 7]\lo^, the sun ; q. d. " a tuft of suns," alluding to the radiating plates of the corallitcs. [Acrohelia.] LOPHOIIELIA. [Amphihelia.] 336 PAMILY v.— ANGIAD^. The visceral cavity of the corallum in this family is not obliterated, nor even subdivided ; the interseptal dis- sepiments being merely rudimentary. There is no coenen- chyma^ and the wall is imperforate. The plates have notched edges, but not very conspi- cuously. The corallum is massive. It increases by gemmation ; the buds being developed on stolons, or on basal membrani- form expansions. The corallites are not united by their sides, except accidentally by means of their walls, and they remain short. But one British genus is known, Hoplangia. ^ 037 GENUS I. HOPLANGIA (Gosse). Phyllawjia (Gosse). Corallum incrusting foreign bodies. CoraUites rather short, formed by buds \vhich spring from aa expansion around the base of the parent, permanently united to it (but not to each other) by the inferior portions of their walls. Wall surrounded by a thin porcellanous coat {epi- iheca), which permits the ribs to be traced through it ; granulate. Bibs thin, sharp, low, very unequally distinct. Columella a broad surface of rough papilla^ merging into the plates. Palules wanting. Plates thin, scarcely salient, unequal, straight, granulose, toothed on the edges, except the upper edges of the primaries, which are nearly entire. There is but one species, //. Durotrix. CARYOPHYLLIACEA. ANGIAD^. THE WEYMOUTH CAHPET-COEAL. Jloplangia Durotrix, (Sp. nov.) Plate X. Fig. 9.* Specific Character. Plates in four imperfect cycles. Phyllangia Americana. GossE, Annals N. H. Ser. 3. ii. 349. GENERAL DESCRIPTION. Corallum. Compound, increasing laterally on all sides ; low, not rising above the height of the individual corallites ; iucrusting rocks. Corallites. Formed by budding from a permanent, thin, calcareous, carpet-like expansion, which spreads around the base of the parent, to which each is permanently united by the inferior portion of the wall. (In the specimen in my possession, four corallites of sub-equal size ai'e grouped around a parent, which has been long dead, for the inner portions of its plates have been worn away.) They are cylindrical, deep, about twice as high as wide, slightly inclining outwards from the common centre. Wall. Invested by a thin porcelain-like coat of calcareous matter, which appears identical with the basal carpet. It terminates above with a perfectly defined, slightly everted edge, above which the wall is beau- tifully white and clean, while the epitheca is dirty white, and coated with a minute sponge. The epitheca shows traces of periodic growth, by a succession of such everted edges not totally obliterated ; and while in one corallite the edge is level with the summits of the plates, in another there is at least one-fourth of the total height above the epitheca. Hence I infer that the wall with the septa makes a periodic growth above the last level of the epitheca, while the latter remains dormant, and that then the epitheca is deposited at once around the new growth ; the wall and the epitheca thus growing alternately. The wall is covered with minute scattered granules, and these as well as the ribs can be discerned through the thin epitheca. Jiibs. Thin, sharp, low, in some places discernible only at the very summit of the wall, in others nearly throughout : in the former case they appear again from the edge of the epitheca a little way downward. Marked " Phyllangia Americana " in some copies. THE WEYMOUTH CARPET-CORAL. 339 Columella. The floor of the cavity is covered with papillary emi- nences, which are very rough, with irregular points, and are identical with the lower edges of the principal plates, by the convergence of which they seem to be formed. Platc-i. Thin above, but increasing in thickness below, scarcely salient, unequal, straight, the surfaces set with irregular granular tubercles, which become increasingly rough and prominent below. The edges are strongly but in-egularly notched and toothed, especially below ; but the upper edge of the^>"mar/e^ is for the most part sub- entire ; the form of the outline varies much. There are normally four cycles in six systems : but the fourth cycle is always wanting either in the whole or in half of some of the systems ; the amount of defection varying much in dif- ferent corallites. The development is very un- notLANt:iA equal, and the plates of the third or fourth {mafjnified). cycle are occasionally larger than those of higher rank, even in the same system. Size. Individual corallites one-eighth of an inch in diameter, and nearly one fourth in height. Animal. Undescribed. Locality. "Weymouth Bay : deep water. When tins neat and interesting little Coral first came into my hands, I thought, notwithstanding some peculiarities, that it must be referred to the Phyllangia Americana, a native of the West Indian seas, and so announced it. But I see that there are incongruities which prevent its identification with that or any other recognised genus, and I have therefore founded a new one to receive it. It has much in common with Anr/ia, as well as rhijUavgia, but the above diagnosis will, I think, warrant my decision. In forming a generic name, I have followed the plan of M. Milne Edwards in using a common element for the genera of a given family ; thougli perhaps a little heterodox for stanch Linneans, it has advantages. Taking then the z 2 340 ANGIAD^. element angia, from a'yyo<;, a cup, I have completed the word from oirXov, armour ; Avith a double allusion to the mail-like epitheca, and the toothing of the plates. The English name commemorates the manner of gemmation ; and the specific, the locality in which it was found ; the Durotriges having, according to Ptolemy, anciently in- habited the coast of Dorset. In September, 1858, a dealer from Torquay, dredging in "Weymouth Bay, brought up a piece of the bottom, about a foot square, evidently the edge of one of the oolite ledges, torn off by the lip of the dredge. On this were from fifty to a hundred specimens of this little Coral, clustered in many groups. It was presumed to be Caryo- phyllla Smithii, and no special notice being taken of it, the mass was broken up and dispersed ; and a small frag- ment accidentally fell under my eye, and Avas secured. I was not so fortunate as to see the animal alive, my specimen, though in the flesh, being in an advanced state of decomposition ; but the discoverer, who is pretty familiar with C. Smithii, at least as to its general appearance, spoke of the Hoplangia as resembling that species, and told me that he remarked green and white hues. He observed also numerous tentacles, but did not notice whether they were knobbed. [Angia.] Hoplangia. [Pliyllangia.] 341 FAMILY VI.— EUPSAMMIADJE. The stony tissue is here deposited in such a manner that tlie corallum. instead of being compact, is porous, but not so open as to have a spongy texture. The wall is thick, and constitutes the chief part of the whole ; it is perforate, and eitlier almost or cpiite naked, with a granulate vcr- miculate surface. The plates are numerous ; those of the last cycle always deviate from the radius of the caliee, their planes approach- ing the bisection of their system, so tliat the whole septal arrangement assumes the form of a six- or twelve-rayed star; by which very remarkable peculiarity this family may be infallibly recognised. The plates are perforate. The interseptal chambers are completely open to the bottom, or divided only by a few incomplete partitions. There is only one British genus known, BalanophyUia. 342 GENUS I. BALANOPHYLLIA (Wood). Corallum simple, adherent, sub-pedicellate, cylin- drical, or sub-conical. Columella well-developed, but not projecting at the bottom of the calice ; of a sponge-like appearance. Plates thin, close-set ; those of the last cycle well- developed. Bibs distinct, narrow, nearly equal, crowded. The Animal is actinia-like, richly coloured, with a protrusile mouth, not conspicuously furrowed, and bluntly-pointed, warted tentacles, without terminal knobs. There is only one British species, B. rcffia. CARYOPUYLLIACEA. EUPSAMMIAD^. THE SCAELET AND GOLD STAR-COEAL. BalanophyUia regia. Plate X. Firjs. 10, 11. Specific Character. Corallum sub-conical, circular : epitheca extending to margin : plates in five imperfect cycles. BalanophyUia regia. Gosse, Dev. Coast, 399; pi. xxvi. figs. 1 — 6. Ibid. Man. Mar. Zool. i. 83 ; fig. 51. GENERAL DESCRIPTION. CORALLUM. Corallum. Conico-cylindrical, rising like the trunk of a tree from a base much broader than the column ; height rarely exceeding, often not equal- ling, the diameter. Calice. Circular or nearly so : varying much in depth. Wall. Rather thick, porous, but scarcely spongy, invested with an epitheca, which in general extends to the margin, but not always, and occa- sionally (as in a specimen in my possession) seems wholly wanting. Rlhs. Continuous (not formed of separate granules) but very sinuous, and in some parts branching, the branches so confluent as to form a rough network : they iire often distinct through the epitheca. Columella. Much developed, forming a large spongiose mass (or more like the crumb of well-raised bread), often rising almost to the level of the margin, but more commonly to about half that height. Plates. Well developed, thick, here and there perforate, with a frosted surface and minutely toothed edges, not salient, the upper edge sloping downward and inward. The star is six-rayed, and is always distinctly formed, and generally symmetrical. There are five cycles, but some of the fourth and fifth are wanting in each system. The gradation in deve- lopment is pretty regular downward from the first to the fourth ; but the fifth are exceedingly irregular and unequal. The two plates of the fifth cycle in each system, which stand next to the primaries (that is, those of the sixth order*), are developed to an extent much exceeding even the * Hist, des Corall. i. 45. 344 EUPSAMJIIADJ::. primaries themselves, from wliich they diverge at such an angle that they mutually meet and coalesce at a point about midway between the origin of the secondary of that system and the axis of the calice, but at a level much lower than the margin ; the two united plates thence pro- ceed in the intermediate line to join the columella. In many examples, however, this continuation of the vmited quinaries is obsolete in each alternate system. The quinaries that are contiguous to the secondaries (the 7th order) are also much developed, but not so as to equal the secondaries, with which they often cohere. B. BEGIA. ANIMAL. Form. Column. Cylindrical, extensile, smooth, or somewhat invected. Disk. Protrusile, in the form of a high truncate cone, on the summit of which is the mouth, without any thickened or furrowed lip. No trace of gonidial radii, tubercles, or grooves. ' Tentacles. About fifty in number, large, conical, obtnsely-pointed, with- out terminal knobs : their walls are translucent, and studded with opaque transversely-oblong wai-ts, which become confluent towards the tip. Colour. Column and Dish. Yivid scarlet in adults, orange in young individuals, opaque. Teiilacles. Gamboge yellow : the hue residing only in the warts. Size. Diameter of corallum one-fourth of an inch at margin, and occasionally twice as much at base ; height from one-sixth to one-fourth. The animal in full expansion may reach one-third of an inch in diameter, and one-half iu height. Locality. The coast of North Devon : on rocks at extreme low water. This sliowy little Coral, interesting not merely for its beauty while alive, but for its peculiar structure when dead, was discovered by myself in 1852. I had been spending a THE SCARLET AND GOLD STAR-CORAL. 345 summer at Ilfracombe, and the chills and storms of autumn were already warning the migrant inhabitants away. It was a spring-tide in September, and the water had receded lower than I had seen it since I had been at tlie place. I was searching among the extremely rugged rocks that run out from the Tunnels, forming walls and pinnacles of dan- gerous abruptness, with deep, almost inaccessible cavities between. Into one of these, at the very verge of the water, I managed to scramble down ; and found round a corner a sort of oblong basin, about ten feet long, in which the water remained, a tide-pool of three feet depth in the middle. The whole concavity of the interior was so smooth tliat I could find no resting-place for my foot in order to examine it ; though the sides, all covered with the pink lichen-like CoralKne, and bristling with Laminaria; and Zoophytes, looked so tempting that I walked round and round, reluctant to leave it. At length I fairly stripped, though it was blowing very cold, and jumped in. I had examined a good many things, of which the only novelty was the pretty nan-ow fronds of Flustra chartacea in some abundance, and was just about to come out, when my eye rested on what I at once saw to be a Madrepore, but of an imusual colour, a most refulgent orange. It was detached by means of the hammer, as were several more, which were associated with it. Xot suspecting, however, that it was anything more than a variation in colour of that very vari- able species, Caryoi^hyJUa Smithii, I left a good many remaining, for which I Avas afterwards sorry, since they proved to belong to this new and interesting form before us. All were affixed to the perpendicular side of the jiool, above the permanent water-mark : and there were some of the common CaryophylHm associated with them. I afterwards found the same species in considerable number, especially during the very low springs of the 346 EUPSAMMIAD^. October new moon, among the rocks off tlie Tmmels, all in the vicinity of the spot where I found the first. They were always in the same circumstances, crowded in colonies; one cavity, just large enough to turn in, containing perhaps a hundred, speckling the walls with their little scarlet disks, near extreme low water. Not one that I took presented the least variation from the characters I had jotted down already ; but one specimen had adhering to its base two very young ones, one about a line in diameter, the other not more than one-third of a line. Examination with a lens revealed no difference either in form or colour between these and the adult ; the condition of their skeleton is un- known, as I did not choose to destroy the infant specimen, much to my present regret. Since that time it has been found in considerable abund- ance along the same line of coast ; and it has become common in our aquariums. It is always attractive from its brilliancy, and is moderately hardy, though it appears rather more difficult to keep than Caryophyllia. The integuments are opaque, even when distended: indeed they never become filled with water to anything like the extent Avhicli makes the species just named so beautiful. The plates are never visible, during life, in any degree of contraction, the red flesh lying as an opaque cushion over them even Avhen all the tentacles are withdrawn. I am not sure that the disk is ever wholly covered by the inver- sion of the column ; even when the tentacles are quite con- cealed beneath the margin, the large mouth-cone still pro- trudes from the central orifice. Sometimes the tentacles sink to very low warts or minute yellow eminences on the scarlet plain that constitutes the disk. I have said that the epitheca is not unvarying ; and I think that the flesh does not extend externally below its edge. One in my possession, however, had the exterior of THE SCARLET AND GOLD STAR-CORAL. 347 tlie corallum wholly clothed with the scarlet integument, even down to the base. The covering was exceedingly thin, for with a needle-point I could feel the stony corallum without any sensible indentation of the surface, and the points at the margin were projecting. I have no information about the reproduction of the species, except such as may be gathered from the following observation. In the montli of September, in a vase in which several specimens were kept, and which contained nothing else to which I could reasonably attribute the phenomenon, I found several clusters of ova. Each cluster consisted of about a dozen, loosely aggregated, and all con- nected by a kind of twisted cord, which formed a footstalk for each. The eggs were perfectly globular, Jgth of an inch in diameter, of a pellucid orange-yellow hue. One of them under the microscope showed the contents granular, and receding from the chorion, with a definite outline. None of them developed the embryo to my knowledge. The genus was established by l\Ir. Wood in 1844, to receive a fossil species from the Red Crag of Sutton. It now contains eleven species, most of them fossil, but one exists in the Italian seas, and two others elsewhere. There is none with which B. regia can be confounded. The generic name is derived from ^d\avo', with a tliick ring at the bottom of each, forming a sort of columella. LUCETtNARIAD.E. Contrary to my original intention, I have determined to exclude this family from my work. Their true affinities are with the Hyclrozoa and Medusa'.. The gelatinous tex- ture, the expanded umbrella, the ovaries in the subst?::ce of the umbrella, the four-lipped mouth placed at the end of a free peduncle,* and the quadripartite arrangement, are all Medusan characters. The tentacles in marginal groups are found in Boucjainvilla'a, and their form, — knobs at the tip of long footstalks, — agrees more with Slahhen'a than witli Corynactis and Caryojyliyllia. * See my fig. of Campanularia, in Devonsh. Coast, p. 296, pi. xviii. 11. ATE J J'- .'-.. / ^ iA , .^ ((/ p n. lii^ ii^. ^' •'■'^ C^ )V^ X m'\ Ul ' 1 £. CI . ANATOMICAL DETAILS APPENDIX. SPECIES DISCOVERED TOO LATE FOR DESCRIPTION IN THEIR PROPER PLACES IX THIS VOLUME. ASTRJEACEA. SAGAETIABJ?. THE LATTICED COEKLET. Phellia Brodricii. Plate VIII. FUj. 2. Sptciic Character. Epiderinis free at the margin, dense, transversely corrugated. Tentacles marked with a latticed pattern. Phellia Brodricii. Gosse, Annals N. II. Ser. 3. iii. 46. GENERAL DESCRIPTION. Form. Ease. Adherent to rocks ; considerably exceeding the column. Column. Flat and wrinkled when completely contracted : rising to a tall, somewhat slender pillar, studded with low warts on its upper portion, but covered on its lower two-thirds with a tough, firmly adherent epi- dermis, the upper edge of which is free, with a ragged foliaceous margin, not forming a tube. The surface of this is transversely corrugated, but not warted. The animal frequently expands in its low condition, when the flower occupies the summit of a very low cone, and is not half the diameter of the base. A slight mai-gin, much wrinkled in semi-contraction, and forming a star of radiating furrows in closing. Disk. Flat or slightly concave ; outline circular. Tentacles. Arranged in five rows, viz. C, 6, 12, 24, 48 := 96 ; short and ."sleudei", diminishing from the first row outwards ; in ordinary extension not longer than one-fourth the diameter of the disk ; generally earned arching over the margin, the tips occasionally turned uj). Mouth. Elevated on a strongly marked cone. Acontia. Not emitted, even under strong irritation, while in my posses- sion. Mr. IJrodrick, however, has seen them projected from the mouth. 350 APPENDIX. Colour. Colu7)in. Exposed part pellucid white, with the wai-ta opaque white. Epidermis. Ochi-eous drab, slightly darker in some parts, with longi- tudiual white lines proceeding from the base, and vanishing a little way up. Central star of button formed of alternate whitish and blackish rays. Disk. Drab : each pi'imary and secondary radius marked with two parallel lines of dark chocolate-brown ; each tertiary radius is similarly but more faintly marked, and the space inclosed is in these latter radii drab on their outer and white on their inner moiety, the divisions of the two colours being marked by a black spot. The space immediately bounding the foot of each primary tentacle dark brown. Tentacles. Pellucid whitish ; the lower half opaque white on the front, crossed by four transverse bars of dusky, the whole (except the lowest one) being connected by three longitudinal lines of the same colour, which impart a latticed or window-like pattern to the tentacle. Mouth. Lip white ; throat white, with black furrows. Size. Diameter of base nearly an inch, of extended column half an inch, of flower from one-thu'd of an inch to an inch ; height one inch. Locality. Lundy Island : on rocks at low water. My acquaintance with tliis species I owe to the courtesy of William Brodrick, Esq., of Ilfracomhe, with whose name I have honoured it. He kindly sent me a specimen in November, 1858, which had at that time heen in his possession about sixteen months, having been taken with another individual in the summer of 1857. Its habit is to remain on an exposed stone, without any disposition to roam : it is generally closed by day, or if open the column is contracted ; but it elongates in darkness. It is very timid, and cannot on this account be fed : the slightest touch of the tentacles I found to be followed by an instant closing. The light of a candle, concentrated by a lens, presently causes it to shrink and contract. gausapata. Broduicii. troglodytes. A STBuEA CEA . B UNODIDJE. THE EINGED DEEPLET. Bolocera eques. (Sp. nov.) Plate IX. Fkj. 6. Specific Character. Tentacles wholly retractile ; white, encircled with a red ring. GENERAL DESCRIPTION. Form. Base. Adherent, scarcely exceeding the column. Column. Cylindrical ; very changeable in shape ; very distensible ; surface covered with numerous slightly indented, close-set, longitudinal Btrioe ; studded, on the upper two-thirds, with numerous minute warts, increasing in number to the margin : these are either prominent or level, at the pleasure of the animal, and they have the power of attaching frag- ments of extraneous matter, which, however, seems rarely exercised. Substance lax and pulpy, with thin integuments. Margin forming a thick parapet, the summit obtusely edged, and notched with close-set denticulations, which are not warts, but are the terminations of the striaj. Disk. Flat, smooth, with very delicate and inconspicuous radii ; outline expansile beyond the column. Tentacles. Sub-marginal, set in six rows: 6,6,12,24,48,48^144; short, thick, conical, but versatile in form, in contraction being slender, in distension often ovate, or when this is partial, ovate with a slender point {mncro) ; constricted at foot, and in contraction marked with longitudinal sulci, both of which are very readily obliterated ; the tip perforate. They are subequal, about an inch and a half in length, and when di-stended, upwards of one-third of an inch in diameter ; are flexuous, and thrown in various directions ; are strongly adhesive ; they are perfectly and readily retractile, but in a peculiar mode ; the margin contracts, till its edges meet over the tentacles, but it never involves itself. Mouth. Occasionally protruded in form of a wide cone. Two gonidial grooves, each with its pair of tubercles, and its broad, though faintly marked, radius. Lips thickened. Stomach-wall capable of being pro- truded in great bladder-like lobes. Colour, Column. A rich light orange- scarlet, rather duller towards the base the strise marked by slightly paler lines; the warts white, each inclosed in 352 APPENDIX. a ring a little deeper than the general hue ; the region below the warts studded with much more minute and more crowded whitish specks. Bisk. Pale buff or drab, unspotted ; pellucid. Tentacles. Pellucid white ; a broad scarlet ring, bounded below by a narrower one of opaque white, surrounds the middle of each tentacle. Mouth. Lii> as the disk. Gonidial tubercles white. Stomach-wall marked with alternate lines of pellucid aud opa'-[ue white. Size. Height of column, when distended, four inches, diameter nearly the same ; expanse of flowe/ about seven inches. Locality. North Sea : deep water. The acquisition of tlie magnificent animal above de- scribed, for which I am indebted to the kindness of Mr. D. Ferguson, of Coutham, not only enables me to augment th.e genus Bolocera, and at the same time the British Fauna, with another species, but also makes me better satisfied with the establishment of such a genus. Equal in dimen- sions to B. Tiicdice, and presenting much in comm.on with that species, there are peculiarities in this specimen wliich compel me to consider it specifically distinct. These are the brilliant hue of the column, its striate surface, the thinness of the integuments, the much feebler sulcation and constriction of the tentacles, and the rings of positive colour which adorn them, together with their power of complete retractation. All these characters make the pre- sent species a decidedly nearer approximation to Tealia. Indeed, when fully expanded, so remarkable is the resem- blance in form, size, and colour, to a fine T. crassicornis, that I have little doubt the reason of its having been liithcrto overlooked, is that it has been passed over as that familiar species. Yet the minute warts, the (really though slightly) constricted and furrowed tentacles, and the non-retractility of the margin, determine its place in this genus. The nobleness of its tout ensemlle, and especially the APPENDIX. 353 rings on it3 many fingers, suggested to me a specific appel- lation, in allusion to old Rome's coxcomb chivalry, whose gold rings were no less characteristic than their valour. My friend informs me that the specimen was procured on the 17th of December, 1858, in twenty-eight fathoms' water, about ten miles east of the mouth of the Tees. The fisherman who obtained it (a careful collector) had never seen one like it, though he had been very familiar with T. crassicorm's, from the circumstance of some hundreds of specimens having been sent to Mr. Teale, from Redcar, when that gentleman was engaged in his important re- searches into its anatomy. It lived upwards of three weeks with its first possessor, and after that a fortnight with me. The greater portion of this latter period it passed in a large tank, where it attached itself, expanded and dilated most gorgeously, presenting a grandeur of beauty which all who beheld it could scarce sufficiently admire. But for a few days before its death it loosed the hold of its base, and began to rupture the integuments, displaying the ci'as- peda. Then tlie stomach-wall protruded, at first in a vesi- cular manner, and then by the inordinate recession of the lip, so that the plicate and corrugated stomach occupied the wliole place of the disk. Then the tentacles lost their power of distension, and resumed their flaccid and con- tracted condition, when the longitudinal suki became again conspicuous. And so the illustrious stranger died, I subsequently received another specimen from Banfl^, in every respect like the former. It survived but ten days. Tuedice. EQUES, T. crassicornis. A A 354 APPENDIX. 11. SPECIES DESCRIBED AS BRITISH, BUT WHICH I AM NOT ABLE TO APPORTION TO THEIR TRUE PLACE, FROM THE LACK OF PERSONAL ACQUAINTANCE WITH THEM. Alderi (Cocks). '" Body cylindrical, hyaline, smooth ; numerous grass- green longitudinal striae ; tentacles twelve, short, obtuse, with a continu- ation of the green line on the posterior surface of each. Disk and mouth crimson, the latter marked with eight spots of same colour, but much darker; edge of disk entire; suctorials minute, numerous, imbedded." Deep water, off Falmouth. Pelluclda (Cocks). " Body cylindrical, smooth, opalescent ; numerous white longitudinal grooves ; suctorials minute ; tentacles short, filiform, transparent, plain ; mouth small ; disk circular, flat, crossed by opaque white lines ; edge entire." Falmouth. Yarrellii (Cocks). " Body conoid, hyaline, with twenty-four longitu- dinal semi-opaque white striae ; suctorials numerous, minute, imbedded. Three rows of tentacles, short, obtuse (rather clavate), spotted all over with white. The ovarian filaments, &c. distinctly seen through the trans- parent tunics." Falmouth. Bella (Cocks). "Body cylindrical, hyaline, spotted with yellow; twelve longitudinal opaque white striae ; mouth bright orange-i-ed ; two yellow patches extending from the angle on each side to the base of the tentacles ; tentacles twenty, long, filiform, dotted anteriorly, and tipped, with yellow." Falmouth. ITastoto (Wright). " Base tulherent to rock ; not exceeding column. Column smooth; height about equal to breadth (one inch). Disk hollow, hardly equalling diameter of column. Tentacles numerous ; in five or si.v rows, set close to margin ; nearly equal ; very conical and short ; thickly crowded. Mouth set on a cone ; lip tumid, furrowed. Column and disk sienna-brown, or salmon colour. Tentacles light brown, with two white bars across the base, tip slightly white or translucent. Lips orange or brick-i-ed." Berehaven, Co. Cork. N.B. The above five species seem all referrible to that group of the genus Sar/artia, which I have provisionally named Thoe. Intestinal^ (Fabric). " Body cylindrical, the upper half suddenly con- tracted and narrow." — " When contracted, the body seems like two broad rings, of nearly equal breadth, and about half an inch in diameter ; when expanded to nearly two inches, the body consists of two cylindrical por- tions of different dimensions, smooth, pellucid, yellowish ; a few longi- tudinal white streaks ; disk not expanded ; tentacles about eight«en, filiform, in two rows." (Fleming.) Shetland. APPENDIX. 355 III. ADDENDA. Sagartia hellis. The Act. Johnstoni of Mr. Cocks is a variety of this species ; two specimens have come under my notice. miniata. A friend {E. W. IT. H.) thinks that the Act. elegnns of Dalyell is this species (see supra, p. 100). If so, my name must give place to his. otmata. I have taken this at Torquay. It has been also found at Mizen Head, and sent me from Banff. The markings are true to the description, and leave no doubt of its distinctness as a species. pallirJn. Sent me in some numbers from Banff. A consider- able colony has also been found at Torquay. coeeinea. Abundant in deep water, Torbay. parasitica. Found, at Jersey, between tide-marks. Phellia f/ausapata. I have since seen numerous specimens ; the species is quite distinct from P. murocincta. A very large specimen has been taken from deep water in Torbay. picta. Other specimens have been sent me from Banff. The epi- dermis is very thin and deciduous ; and altogether the species seems inter- mediate between the true Phellice and such Sagartice as coeeinea. A davutia palliata. Some interesting facts concerning this species and its connexion with the Hermit-crab will be found in a paper of mine, " On the Transfer of Adamsia palliata from Shell to Shell," published in the Zoologist for June, 1859. Sphenolrorhtis Macandrewanus. This has occurred more abundantly than the text seems to imply. Both Dr. Cocks and Mr. Alder inform me of having seen numerous specimens, chiefly from the Cornish coast ; and the latter has kindly presented me with two specimens. Wrighfii. Dr. Wright has sent me a fifth specimen from the same bank as the other four, differing considerably in form from all. Lopkohelia prolifera. I have omitted to mention a fine British specimen, preserved in the Museum of Newcastle ; and another mentioned by Lands- borough, from Barra, one of the Hebrides. Balanophyllia regia. Two living specimens have been dredged in Ply- mouth Sound, by Mr. T. H. Stewart of the Roy. Coll. Surg. 356 APPENDIX. IV. GEOGRAPHICAL DISTRIBUTION. In the following attempt to distribute onr Sea- Anemones geographically, I divide the whole British Coast into ten provinces, thus (somewhat arbitrarily) defined. 1. The Shetland, including the Orkneys, and Scotland as far as Kinnaird's Head. 2. The North Sea, including the coast from Kinnaird's Head to Spurn Head. 3. The Eastern ; from the Humber to the Thames, a flat low shore. 4. The South-east; from the Foreland to St. Alban's Head; chiefly chalk cliS"s. 5. The Devonian; from St. Alban's to St. David's Head; a rugged rocky coast. 6. The Irish Sea, to the Mull of Cantyre, including Man, and the Irish shore. 7. The Hebridean, from Cantyre to the Orkneys. 8. The South Irish, from Carnsore Point to Mizen Head. 9. The Atlantic, from Mizen Head to Eathlin Island. 10. The Channel Islands. A glance at the table will show that the Devonian dis- trict is by far the richest in species, including two-thirds of the whole. Next in fecundity to this extreme south comes tlie extreme north, numbering, however, less than two- thirds of the Devonian total. The Irish Sea, the Atlantic coast of Ireland, and the Channel Isles, each claims about two-thirds of the Shetland total. The province of the North Sea holds about two-thirds of this last number ; and then come in succession the South-east, the Eastern, and South Irish, and finally the Hebridean. These numbers represent, of course, the state of our knowledge rather than the fjxct. I look for additions in B the Devonian province, and far more in the Shetland and ^ Hebridean, of which last I know almost nothing. The Atlantic province will doubtless be farther enriched, and that of the Channel Isles. But I do not look for many species to be added to the North Sea ; and few if any to the Eastern and South-eastern provinces ; — mud and chalk being essentially ungenial to Sea-anemones. 1 1 1 Shetland. 1 Nor. Sea. 1 k-astern. 1 So.-East. 1 Devonian. 1 Jrish hea. 1 Hebridean. 1 So.-lrish. 1 Atlantic. 1 Chan. Is. i X, I i 3 iz; 1 Eastern. 1 So.-Kast. 1 iJevunian. 1 Irish Sea. 1 '-T 1 § s S < V 1 ) 1 ! dianthus • • crassicomis • • t • • • j— - • • • bellis .... t . • • 1 • ? tuberculata . • miniata Margaritse . . rosea .... • • Chnrchi.TB . . • ■ • oruata . . . • • ! spectabilis • -. -^ _ , .— "^ "^ ichthystotna . Scoticu* . . 1 2^ venusta ... • • » Mitchcllii . . • nivea • • • hastata (Pe.) . • sphyrodeta ... • • undata . . . pallida . . . • • triphylla . . • pura .... . ? cylindrica. . • Alderi(Sag.) . ■ • ii chrj'santhell. . pellucida . . microps . . . ' Yarrellu . . callimorpha . Bellii. ... caraea . . . hastata (Sag.) . J Beautempsii . coccinea. . . • alhida . . . • troglodytes. • • Lloydii . . . viduata . . . • • . • • • vermicularis . . parasitica . . • • • sanguiiiea . . • • Zi chrysosplen. . - • augusta . . . • inteslinalis . . • heterocera . . • • palliata . . . • • • • • viridis . . . • • • • murocincta. . Couchii (Zo.) . • • • • rif gausapata . . • sulcatus . . . • Brodricii . . Alderi (Zo.) . • picta . . . . • Smithii . . . • • • • • • .^ ' fenestrata . . • pteropus . . • Taxilianus . . . /J-^ Couchii (Aip.) . cereus ... • . • Thulensis . . • n^ ' mesembry. . Tuediae . . . • • • . • . Macandrewan . Wrightii . . • • i eques. . . . • • gemmacea . . • arcticus . . . • • • • prolirera . . . • - • 'j7 thallia ... Durotrix . . • Ballii ... regia .... • ^H coronal a. . . • digitala ■ • . | " | r interstincta . Total 75 1 • 30 141 7I9 Slii I'll !0 6 7 2I!S •2 358 APPENDIX. NAMES OF AUTHORITIES EXPRESSED BY INITIALS. A. B.C. Miss Church. A. 31. M. Mrs. Mui-ray Menzies, A. It. ' Mr. A. Robertson. O.K. Rev. Charles Kingsley. a W. P. Mr. Chas. W. Peach. D.B. Miss Barnie. D.F. Mr. D. Ferguson. D.L. Rev. David Landsborough. D. R. Mr. David Robertson. E. C. H. Mr. E. C. HolwelL E. F. Professor Edward Forbes. E. L. W. Mr. E. L. Williams, Jun. E. P. W. Dr. E. Perceval Wright. E.W.H.H. Mr. E. W. H. Holdsworth. F. H. W. Mr. F. H. West. F. L. C. Rev. F. L. Currie. F. N. B. Mr. F. N. Broderick. G.B. Mr. G. Barlee. 0. a H. Dr. G. C. Hyndman. G.D. Dr. G. Dansey. 0. B. {B.) Professor Dickie. a. 0. Mr. G. Gatehouse. G. G.{V.) Mr. G. Guyon. G. H. L. Mr. G. H. Lewes. G.J. Dr. George Johnston. G.J. A. Professor Allman. Q. T. Rev. George Tiigwell. 11. H. D. Rev. H. H. Dombrain. H. 0. Mr. H. Owen. J. A. Mr. Joshua Alder. J. C. Dr. John Coldstream. J. C. G. Miss Gloag. /. D. n. (A misprint for T. D. H. /. G. Rev. James Guillemard. /. G. D. Sir John G. Dalyell. /. M. Mr. James Macdonald. /. M. J. Mr. J. M. Jones. /. P. Mr. J. Price. /. R. G. Prof. J. Reay Greene. /. R. M. Mr. J. R. Mummery. /. T. Mr. John Templeton. /. T. II. Mr. James T. HilUer. M. E. G. Miss Guille. M. V. Miss Yigura. P. //. G. Mr. P. H. Gosse. R. B. Dr. Robert Ball. R. C. J. Prof. R. C. Jordan. R. U. Mr. R. Howse. R. P. Mr. Robert Patterson. R. Q. C. Mr. Richard Q. Couch. S. U. Mr. Sydney Hodges. S. W. Mr. S. Whitchurch. T. D. H. Dr. Thos. D. Hilton. T. S. W. Dr. T. Strethill Wright, W. A. L. Mr. Wm. Alford Lloyd. W. F. S. Rev. W. F. Short. W. G. Rev. Walter Gregor. W. II. Rev. Wm. Houghton. IF. M'C. Mr. W. M-Calla. W. P. C. Mr. W. P. Cocks. W. T. Mr. Wm. Thompson (Bel- fast). W. T. ( W.) Mr. Wm. Thompson (Wey- mouth). I MAGN I Fl ED P*ATE XII 2 .<^ V 1 >^l/i-j:>i SSE.Otl L 1 PHtLLIA PICTA 2 ZOANTHUS SULCATUS 3 EDWARDSIA CARNtA 4 CARYOPHYI I lA (^/f /y*A,*C// ^'^- rt DICKCS SC ZOANTHUS ALDERI. HALCAMPA MICROPS CRECORIA FENESTRATA 8 PHELLIA MUROCINCTA INDEX. N.B. The names inclosed within brackets are such as are not adopted in tliis work. Acontia, xxii. Actinia, 174. ACTINIA D^, 171. ACTINOLOBA, 11. AcTixopsis, 150, 170. Adamsia, 124. Addenda, 355. AlPTA.SIA, 151. nlbida, 264. AlderL 305. "i AlderiZoi. \^Allmanni\, 289. \amacha], 152. [Americana], 338. Anemone, origin of the name of, 1 4. Anemone, Cave-dwelling, 88. Cloak, 125. Dai.sy. 27. Eyed, 84. Fish-mouth, 57. Gold-spangled, 119. Pallid, 78. Parasitic, 112. Plumose, 12. Orange-disked, 60. Ornate, 54. Rosy, 48. Sandalled, 73. Scarlet-fringed, 41. Snake-locked, 105. Snowy. fiO. Trajislucent, 82. Anemones, enemies of, 168. food of, 103, 164, 193, 272. voracity of, 215. ANGIADjE, 336. \anguic'yma\ 105. AXTHEA. 159. ANTHEAD.ii,U8. Abachnactis, 203. arcficu.% 330. ASTR^ACEA, 8. augusta, 283. [aurandaca], 12. AUBELIANIA, 282. [oHrora], 88. Authorities, Names of, 358. Balanophtllia, 342. £all!l, 198. Bantry Bay, riches of, 64. [Barleei], 297. Base, 1. Eeadlet, 175. [Beaufempsii], 262. Bee, mistake of, 213. ? Bella, 354. belli.% 27. [himaculata'}, 209. [biserialis], 152. BOLOCERA, 185, 351. [horealis], 310. Brodrlcii, S49. BUNODES, 189. BUNODIDJK, 183. callimorpka, 355. [oa?i(Z(f/a], 73. Capnea, 279. CAPNEA 1)^,278. Capstone Hill. 31, 74. [carciniojutdon], 125. came a, 259. Carpe1;-coral, 338. CAnYOPHTI.I.IA, 309. CARYOPHYLLIACEA, 276. Cavity, 4. [cerasum], 175. cereits, 160. [Cereus], 205. Cerianthus, 267. [rkiocorra\ 175. CnRYSOEI.A, 123. chn/santhellum, 247. chn/sogpleniwm, 119. Churchia, 222. Cinclides, xxiii. [clarata], 198. 360 INDEX. Cnidse, xx. xxvii. Cnidae, chambered, xxviii. tangled, xxx. spiral, xxxi. giobate, xxxii. coccinea, 84. Colour, change of, 180. Column, 2. Concealment, instinct of, 212. [corall inal, 175. [coriacea], 209. Corklet, Walled, 135. Warted, 140. Painted, 143. Latticed, 349. coronafa, 202. CORYNACTIS, 288. Couchii, 152, Couchii, 297. Crab, Hermit, 115, 128. Craspeda, xxi. crastficornis, 209. Crawling, mode of, 81, 164, 253. Creeplet, Sandy, 297. Furrowed, 303. Wrinkled, 305. [Cribrika], 205. Crisp-coral, Scarlet, 330. Crock, 280. Crookhaven, cavern of, 214. Cup-Coral, Devonshire, 310. Moray, 317. Shetland, 319. Winged, 321. [Ctathina], 309. [ci/aihu^], 310. ?, cylindrka 245. Cylista, 123. Deeplet, 186. Ringed, 351. dianfhm, 12. digilafa, 206. Disk, 3. Division, spontaneous, 19, 46, 66, 86, 110, 168,291. Durotrbc, 338. Ecthorrcnni, xxix. [eduiis], 160. Edwardsia, 254. [cffoeta'], 112. ficrgs, discharge of, 97, 100, 117, 225,314,347,223. ^ eleyati'^]^ 88. eques, 351.^ [equin