1 y,' xl THE BRITISH SEA-ANEMONES AND CORALS. LONDON R. CLAY, PRINTER, BREAD STREET HILL. I'iATE V 3 IN COLOURS B, n.DICRCS ® 1 M 1 1 * i ’JSfkT 1 BOLOCERA TUEDI/E, 3 AlPTASIA COUCHM 2 ANTHEA CEREUS 4 SACARTIA COCCINEA 5 . S. TROGLODYTE S. 4 5 ACTINOLOGIA BRITANNICA. HISTORY or THE BRITISH SEA-ANEMONES AND CORALS. WITH COLOURED FIGURES OF THE SPECIES AND PRINCIPAL VARIETIES. BT PHILIP HENRY GOSSE, E.R.S. k » k LONDON: VAN VOORST, PATERNOSTER ROW. 1860. f PREFACE. Ix writing the following pages, I have lahonred to produce such a “ History of the British Sea-Anemones and Corals,” as a student can work with. Having often painfully felt in studying works similar to the present, the evil of the vagueness and con- fusion that too frequently 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 wdth 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 Enghsh 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 jjersonal acquaintance with species was very small, or the result woidd doubtless have been different. The elaborate “ Histoire Naturelle des Coralliaires ” of M. Mdne-Edwards is liable to the same objection. A work of immense research, labour, and patience, it bears evidence in every page of being the produce of tire 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 folloAv 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 ]\Ir. F. H. West of Leeds, and the Rev. W. Gregor of Macduff, 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 Lucernariadce. Of these twenty- I’REFACK. vn four only are described in Johnston, — the rest of his species being either sjmonyms or resting on insufficient evidence. Fifty -four British species have been examined by myself, perhaps a larger mimber than have come under the notice of any other naturalist ; by far the greater part in life and health ; and thirty-foxir of these have been added to the British Fauna bj' myself. A new feature in works of this sort, which will strike the student, perhaps needs a word of explanation ; — I mean the dis- tingui.shing 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 embodjdng the knowledge of many, rather than of one. Among disadvantages must be put doxvn, incongruities between the earlier and the 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. VI 11 PREFACE. My labour has been performed con amore ; I have looked forward to it for many years past; and it is vith 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, ]859. LIST OF PLATES. I. — 1. Actinoloba diauthus. 2. Sagartia bellis. 3. S troglodytes. 4, 5, 6. S. rosea. 7. S. venusta. 8, 9. S. sphyro- deta To face page II — 1, 8. Sagartia nivea. 2, 3, 4. S. miuiata. 5. S. troglodytes. 6. 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. Boloeera Tuedise. 2. Anthea cereus. 3. Aiptasia Couchii. 4. Sagartia coccinea. 5. S. troglodytes Front. VI. — 1 to 6. Actinia meserabryanthemum. 7. A. cbiococca. 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. Ceriantlius Lloydii. 9, 10. Hal- campa chrj'santhellum. 11. H. microps 228 VIII. — Hormathia Margaritse. 2. Phellia Brodricii. 3. Peachia hastata. 4. P. undata. 5. Stomphia Churchise. 6. Ily- anthus Mitchellii 234 IX.— 1 to 5. Corynactis viridis. 6. Boloeera 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 Pl.ATES. X. — 1. Lophohelia prolifera. 2. Peacliia triphylla. 3. Sphenotro- chua Wrightii. 4. S. Macandrewanus. 5. Zoanthus Couchii. 6. Paracyathua Taxilianus. 7. P. pteropus. 8. P. Thulensia. 9. Hoplangia Durotrix. 10,11. Bala- nophyllia regia. 12, 13. Caryophyllia Smithii. To /ace 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 ; ff. craspedal mesentery ; A. 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 ; 1. slightly open ; m. closed. 6. Chambered cnida {Ca- ryophyllia) before discharge. 7. Chambered cnida {Tealia) discharged, n. ecthoreeum ; o. strebla ; p. 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 Thumi of what 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 natm-alists, 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. Xll INTRODUCTION. 1. Tegument ary System. The skin is sufficiently distinct. After a few hours’ maceration in fresh water {Sag. hellis), the epithelial and pigmental cells are easily removed wnth a hair-pencil, leaving the outer layer of muscular fibre bare. If the specimen be immersed in spirit for a day or two ' {A. diantims), the integument may be separated in fiakes, 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 cnidte. An examination of the living animal {diantims, hellis, crassicornis, Hale, chrysanthelliim, 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 fr*om the true skin, in the form of mucus ; but in some cases {Pkellia, Edwardsia) 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 cnidae, 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 tlie pigment-cells, which impart the colours to the animal. The tentacles of Aiptasia 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. Mtiscidar 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 whicli 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. Xlll two layers of fibre that compose the columu-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- THIDJE, Turlinolia, &c.), the body tapers gradually to a point below, wdthout 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'Tiis 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 w'arts, 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 microps, 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, sur- 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 tliat I could regard as eyes ; not even in the rudimentary form of those aggi’egations of pig- ment-cells, that occur on the margin of the Xaked-eyed Medusae. A delicate sense of touch certainly exists, dis- tributed over the entire smlace, 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 palpocils,* which he considers as delicate tactile organs. These are specially conspicuous on the globose heads of the tentacles of Corynactis 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 papillas, 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 XI. 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 have 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 iLYANTHiDiE, 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 71 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 without the excretion of mucus. The languor, too, induced by the narcotic, allowed the parts to be freely See Edin. New Phil. Jouru., April, 1857. XV'l INTRODUCTION. touched with iustrunients 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^ Mollusca, and Annelida. Nothing is more common than to find large specimens of A. mesemhryan- themum or T. crassicornis discharge, soon after their capture, • Siebold’s Comp. Anat. § 37. “ The stomach with its circular aperture at the ease ” (Teale). Johnston, indeed, denies it any aperture at all : — " There is no — other visible exit from the stomach than the mouth.” INTRODUCTION. XVll the shell of a crab, or a limpet, from which the entire flesh has been removed and replaced by a tenacious glaire. No doubt the fii-st part of the process consists largely of ma- ceration, and continued pressime, 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 dianthus, 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. Cnidie 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 brown 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 caution 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 narrijw sinuous depressions. Over the surface, and chiefly following the lines of the sinuosities, I noticed meandering white lines, like veiy slender branching threads. The thought that I had dis- covered 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 lUjht rcllected from the ed^e of the smooth lobules / XVI u INTRODITCTTON. averaging *0005 incli, but some attaining *0003. These are very numerous in the mass. 5. Circulatory and Bespiratory systems. These exist in so simple a condition that we can scarcely separate them in our investigations. Ur. Williams has distinguished by the term Ghylagueous fluids “ 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 seeretion. 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 diantlius has its fosse much exposed, it is quite easy to see the current driving up from every part of the 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 though 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. t Annals of Nat. Hist.; March, 1858. INTKODUCTION, XIX merely tlie mechanical result of the impact of the 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. crassiconits, 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 tip. 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 I infer a natural foramen there ; and think that it exists in all species, except those (as Corynactis and Cavyophyllia) 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 bellis, on making a transverse section just below the disk, I have found a small round aperture in each primary and secon- dary septum, through which 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 diayitkus, 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, b). In Anthea cereus they are conspicuous;* but I have been unable to detect them in T. crassicornis or in Corynactis. * The most satisfactory observations I have made on these perforations were on a specimen of Anthea cereus, var. sulphurea. Being very much expanded, and distended to translucency, the base adherent to the side of a glass tank, the column greatly exceeding the base, the window opposite, b 2 XX INTRODUCTION. That the function of Respiration should he 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 Avithin 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 effete AAmter. What this is, however, I knoAv not. In Ceriantlms, which has a posterior foramen to the body-caAuty, I haA^e seen the water forcibly ejected from this aperture (see mfra, 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. crassicorms, which shot up some mucous shreds Avith force to the surface, a height of some Aa'c inches. Perhaps these expulsions, and those from the tentacle-tips already alluded to, may be set doAAUi as so many expirations (per- haps periodical) of deoxygenated water. Ancillary to respiration, as renewing the Avatcr 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 Ausible at the margin, floAving in an even current up the tentacle, on every side, from the foot to the I saw with a lens, for an hour together, with the utmost distinctness, a small cii’cular (oval in perspective) foramen in each septum. That is, I saw them in a dozen or more successive septa, without interruptiou. The diameter of the foi’amen 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 more and more linear, the line in the latter case being that of the axis of the column. Hence they must have been in films ruuuing from the column-wall towards the axis perpen- dicularly, as regards 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 with my eye) ; and I found that the foramina are pierced through those which are entire (by far the greater number), but that the series is interrupted irre- gularly by those imperfect septa, 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 numbers 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. BaJanophylUa presents an excep- tion to this rule, -n’liich I liave found to hold good in all other examined cases. In this 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. Reproductwe, System. The Actinaria 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 Antliea cereus (see infra, p. 169) ; and an imperfect form of the same produces double-disked individuals of Actinoloba and Actinia. The latter mode is common with several of the Sayartiadce (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 Astr^- ACEA always bud from the disk, the Caryophylliacea invariably from the side or base. But a specimen of A.dianthus has come into my 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 separate its progeny. Generation is of course the normal mode of increase of the race. The sexes are sometimes united in one indi- vidual {S. troglodytes, p. 100) ; sometimes separate {Stom- pliia Churcliice, 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 XXll INTRODUCTION. separate, and inclose the reproductive organ (/), uniting again beyond it into a second mesentery (g), which is bounded by the craspedum (h) presently to be described. Both mesenteries are full and plaited, especially the cras- 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 egg 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 (jpassim), and many highly interesting details have been recorded in the magnifieent 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 from 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 armature 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, which have the power of shooting out a long thread of extensive tenuit3^ Wagner first drew the atten- tion of physiologists to these organs, 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 Wagner, Erdl, Quatrefages, Kolliker, Agassiz, and myself. These bodies I have called cnidce, or thread-cells. The cnidce, in the Actlnoid Zoophytes, are not confined to one organ or set of organs. They are found in various * Annals Nat. Hist, for Feb. 1853. INTRODUCTION. xxiii 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 the 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 for as I know, have no other function than that of being magazines of the cnida;. These organs arc of two kinds, which I have designated respec- tively as craspeda, and acontia. The Craspeda. The peritoneal membrane of the septa, having formed, by the contact of its two laminse, 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 craspeda 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 the free edge has disappeared, we still find the craspeda bordering the mesenteries of the sep)ta, 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, wdiich, 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.) ]\Iulberry-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 are generally ovate, but are some- XXIV INTEODUCTION. what irregular in form. (4.) Cnidse, in greater or less ahundance, according to the species. As the craspedum flattens under pressure, these are crowded at the edges, and are seen to he 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 cnid(B 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 ^agariia parasitica, 8. miniata Adamsia palliata, 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. parasitica, 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 are, one after INTRODUCTION. XXV another, sucked in, as it were, through an imperceptible orifice. Acontia arc 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 Sagartiadce, and perhaps in the Bunodidce. In Sagartia helUs they spring from the mesenteries that carry the craspeda; 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 crasjjediim, of which it seems to be a form modified for a special use, its surface is richly ciliated ; and the ciliary currents not only hurl along whatever floating atoms chance to approach the surface, but cause the detached fragments themselves to wheel round and round, and to swim away through the water. Though there is not the slightest trace of flbrillm 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 e2)ithelium. 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 cnidee, 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 Sagartice, 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 INTEODUCTION. eye, supposing these to he reversed ; the convexity being inwards. 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 (Z), 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, ^th of an inch ; but that of another, in the same animal, was more than twice as great, viz. yg^th of an inch. This was on the thickened marginal ring, or parapet, Avhich 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 cinch’s begin to open, and gradually expand till it was almost circular in outline, and absth of an inch in diameter. I slightly touched the animal, and it in an instant enlarged the aperture to y^th of an inch. In a specimen of S. bellis, less than half grown, I found the cinclides numerous, and sufficiently easy of detection, but rather less defined than in dianthusov 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 shth of an inch in transverse diameter, a large size, — and I measured one which was even -ghtli 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 diantJms, 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. XXVll membrane of exeessive tenuity, and one or two scattered cnidce, across the bright interval. On another occasion, in the case of a cinclis at the edge of tlie parapet — a position singularly favourable for observation — I saw that this subtle film was gradually pushed out until it assumed the form of a hemisplierical bladder, in which state it remained as long as I looked at it. At the same time the outline of the cinclis 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 cinclides are the special orifices through which those missile weapons, the acontia, 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 acontia, 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 XXVlll INTRODUCTION. power of tlie microscope, a specimen of S. nivea, 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 hight of a bent 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 structures, 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 mechanism, 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 fossffi are pierced with the cinclides. When the animal is irritated, it immediately contracts ; the water contained in the visceral cavity finds vent at these natural orifices, and the forcible currents carry with them the acontia, each through that cinclis whicli 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 perfeetly adequate means. The ejeeted acontia, loaded with their deadly cnidie in every part of their length, earry 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 cinclis. The Cnidee. — 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 Cnidee [Cnidee cameratee). This is perhaps the most generally distributed form, as it is manifestly the most elaborately armed. It may be well examined in Caryophyllia 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 craspeda are also similarly studded with cnidee^ which are, however, of longer dimensions, and of fuller form. As I have seen no chambered cnid®, 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 cnidee at its extremity, while the posterior end, after having become attenuated like the anterior, dilates with a fuunel-sliaped mouth, in which the eye can clearly see a double-infolding of the chamber-wall. After this double fold the structure prpceeds as a very slender cord, which, ])assing back towards the anterior end of the capsule, winds loosely round and round the chamber, with some regadarity 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 INTEODL’CTIOX. its inner surface with regularly recurring seiTations, which 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 aniinal’s functions, the cnidce 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 degree in the interior of the cnidce ; 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 tlie 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 tAvice its OAvn diameter, Avhen it suddenly yields, and the contents of the cnida dart forth. At this instant I have, in many instances, heard a distinct crack or crepitation, in the examination of cnidce both of this species and of 8. parasitica. INTRODUCTION. XXXI When fully expelled ^ the thread or wire, which I distin- guish by the term ecthormim (Plate XI. fig. 7, n), is often twenty, thirty, or even forty times the length of the cnida ; though, in some species, as in most of the Sagarti(B, it frequently will not exceed one-and-a-half, or two times the length of the cnida. The ecthoraa, wliich are discharged by cliamhered 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, o). In the ecthorcea emitted by cliamhered cnidee from the craspeda of T. crassicornis, the screw is formed of a single band, ha\dng 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. parasitica 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. Iii those similarly placed in Garyophyllia, the strehla is composed of three equidistant 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, esi^ecially after having been expelled for some time, the wall of the ecthorceum becomes so attenu- ated as to be evanescent, while 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 XXXll INTRODUCTION. error of another kind I fell into, in supposing that the triple screw of the wire in C. Smith ii was a series of imbricate plates : the structure of the armature is tlie same in all cases (■s\dth the variations in detail that I have just indicated) ; and the structure is, I am now well assm-ed, a spiral thickened band, running round the wall of the ecthoraum on its exterior surface. I have been able, when examining such large forms as those of Corynactis and Caryo^hyllia, with a power of 750 diameters, to follow the course of the screw, as it alternately approached and receded from the 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 ecthor£eum. These barbed bristles I denominate fa. (See fig. 7,p.) _ The number of yterygia 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 strebJa in T. crass icor Ills ; while in the more complex screws of S. parasitica, Cor. viridis, and Cary. Smithii there appear to be twelve in each volution. The barbs, when they first appear, invariably project in a diagonal direction from the ectliorcBum ; 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 strebla, and even the pterygia, are continued on the attenuated portion of the ecthormiin, 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 {Cnidce glomiferce). This form is very generally distributed, and is mingled with the former INTRODUCTION. xxxin in the various tissues. In tlie genus Sagartia, however, it is by far the rarer form, while in Actinia and Anthea, it seems to be the onl}^ one. The pretty little Corynactis viridis is the best species that I am acquainted with for studying this kind of cnidcc. 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 "OOIS in the shorter diameter. Their size, therefore, makes them peculiarly suitable for observations on the structm'e and functions of these curious organs. AVithin the cavity is a thread {ecthorceiim) 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 eciliorceum of the tangled cnida is sun-ounded throughout its length by a barbed strebla 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 ecthoraum 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 Cnidee {Cnidee cocldeatce). In a few species, as S. parasitica, T. crassicornis, and Cerianthus Lloydii, I have found very elongated fusiform 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 Cerithiadee or Turritellad(B (Plate XI. fig. 10). The cctliorcciim 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 the 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 ; 1 have not seen the slightest sign of arma- ture on the cethormim. So far as my investigations go, these spiral cnidce are confined to the walls of the tentacles, in which, however, they are the dominant form. (4.) Olohate Cnidce [cnidce globatce) ? In the acontiiim of T. parasitica flattened under pressure, and finally ex- pressed from its substance, are numerous more or less globose or ovate vesicles, which gradually push out a cylindrical protuberance at each end, sometimes to a length equal to that of the original form (figs. 11, 12). These vesicles appear filled with a fluid of different refractive power from that of the clear sarcode in which they are lodged ; but no sign of contained thread have I been able to detect, nor have I seen any discharge beyond the pro- trusion above spoken of. I am not at all sure that these vesicles are consimilar in function with the true cnidce ; and I am still more doubtful about the bacillar bodies found in the acontioid filaments of T. crassicornis. In the indubitable cnidce, — those which I have distin- guished as (1) Chambered and (2) Tangled, — the emission of the ecthorceiim is a process of distinct eversion. This is not a solid but a tubular prolongation of the walls of the cnidce, turned in, during its primal condition, like the finger of a glove drawn into the cavity. Some of the observa- tions on which I ground this conclusion I have already published, but it may not be impertinent to repeat them here, with others which have since occuiTed to me, all proving the same fact. In the discharge of the ecthorceiim of the tangled cnidce, it frequently runs out, not in a right line, but in a spiral form ; whenever this is the case, each band of the spire is made, and stereotyped, so to speak, in succession, wnile the tips go on lengthening : the tiio only progresses, the whole of the portion actually discharged remains perfectly fixed ; which could not be on any other supposition than that of evolution. In the discharge of the chambered kind, the ventricose or basal portion first appears ; the lower barbs fly out before the upper ones, and all are fully expanded before the attenuated portion begins to lengthen. This again is consistent only with the fact of the evolution of the whole. On several occasions of observation on the chambered cnidce of Caryophyllia, I INTRODUCTION. XXXV have actually seen the unevolved portion of the ecthorcBum running out through the centre of the evolved ventricose portion. But perhaps the most instructive and convincing example of all was the following. One of the large tangled cnidae of Corynac.tis viridis had shot about half of its wire Avith rapidity, Avhen a kind of twist, or “ kink,” occurred against the nipple of the cnida, whereby the process was suddenly arrested. The projectile force, however, continuing, caused the impediment to yield, and minute portions of the thread flew out, piecemeal, by fits and starts. By turning the stage-screw 1 brought the extremity of the discharged portion into view, and saw it sloAvly evolving, a little at a time. Tm'iiing back to the cnida I saw the kink gradually give way, and the whole of the tangled wire quickly fleAv out through the nipple. I once more moved the stage, fol- lowing up the ecthor(Bum, and presently found the true extremity, and a large portion of the wire still inverted ; slowly evolving indeed, but very distinct throughout its whole coiu’se, within the walls of the evolved portion (fig. 8). From all these observations, there cannot remain a doubt of the successive eversion of the entire ectliormum. It may be asked. What is the nature of the force by which the contained thread is expelled? That it is a potent force, is obvious to any one who marks the sudden explosive violence with which the nipple-like end of the cnida gives way, and the contents burst forth ; as also the extreme rapidity with which, ordinarily, the whole length is evolved. A curious example of this force once excited my admiration : the ecthorccuni trom a cnida of Corynactis viridis was in course of rapid evolution, when the tip came full against the side of another cnida already emptied. The evolution Avas momentarily arrested, but the wall of the empty capsule presently Avas seen to bend iiiAvard, and suddenly to give way, the ecthorceum forcing itself in, and shooting round and round the interior of the cnida. The most careful observations have failed to reveal a lining membrane to the cnida. I have repeatedly dis- cerned a double outline to the walls themsch'es — the optical expression of their ^ diameter ; but liavc ncA’cr detected any, even the least, appearance of any tissue starting from the walls, as the ecthoraeum bursts out. My first supposition, reluctantly resigned, Avas, that some such XXXYl INTRODUCTION. lining membrane of high contractile power, lessened, on irritation, the volume of the cavity, and forced out the wire. The cnida is filled, however, with a fluid. This is very distinctly seen, occupying the ca^dty, when from any im- pediment, such as above described, the wire flies out fitfully — waves, and similar motions, passing from wall to wall : sometimes, even before any portion of the wire has escaped, the whole mass of tangled coils is seen to move irregularly from side to side, within the capsule, from the operation of some intestine cause. The emission itself is a, process of injection ; for I have many times seen floating atoms driven forcibly along the interior of the ecthoresum, sometimes swiftly, and sometimes more deliberately. Nothing that I have seen, would lead me to conclude that the wall of the cnida is ciliated. I consider, then, that this fluid, holding organic cor- puscles in suspension, is endowed with a high degree of expansibility ; that, in the state of repose, it is in a con- dition of compression, by the inversion of the ecthorceum ; and that, on the excitement of a suitable stimulus, it forcibly exerts its expansile power, distending, and con- sequently projecting, the tubular ecthorceum, — the only part of the wall that will yield without actual rupture. The cnidce cannot, I think, be regarded in the light of cells, since they are but the contents of other vesicles, which thus present a higher claim to the character of cell- wall. In the craspeda of S. parasitica, may be seen many of the chambered cnidce, bearing this outer envelope, which, without determining anything concerning its nature, I shall distinguish as peribola. Many of the cnidce have ruptured their investing membrane, which gives way at no special point, sometimes at the anterior end, sometimes at the posterior, and as frequently, all down the side. The perihola thus ruptured, may be seen in many instances still hanging about the cnida, while others are quite free from any remains of it, and in some cases I have seen the cnida still enveloped in its perihola, unruptm’ed. The perihola I have seen investing, and hanging around the cnidce of the spiral and glohate kinds, and this circum- stance has afforded me an additional ground for presuming the latter to belong to this category of organs (figs. 11, 12, ^). It appears necessary that the cnida should set itself free INTRODUCTION. XXXVll by the rupture of its •perihola^ before it can effect the emission of its ectlwrmim. At least I liave never met with an example of the contrary. It has long been known, that a very slight contact with the tentacles of a polype is sufficient to produce, in any minute animal so touched, torpor and speedy death. Since the discovery of these cnidae, the fatal power has been supposed to be lodged in them. Baker, a century ago, in speaking of the Hydra, suggested that “ there must be something eminently poisonous in its grasp;” and this suspicion received confirmation from the circumstance that the Entomostraca, which are enveloped in a shelly covering, frequently escape unhurt after having been seized. The stinging power possessed by many Medusa, which is suf- ficiently intense to be formidable even to man, has been reasonably attributed to the same organs, which the micro- sco|)e shows to be accumulated by millions in their tissues. Though I cannot reduce this presumption to actual certainty, I have made some experiments, which leave no reasonable doubt on the subject. First — I have proved that the ecthoraum Avhen shot, has the power of penetrating, and does actually penetrate, the tissues of even the higher animals. Several years ago, 1 was examining one of the purple acontia of Adamsia palUata : no pressure had been used, but a considerable number of cnida had been spon- taneously dislodged. It happened, that I had just before been looking at the sucker-foot of an Asterina, which remained still attached to the glass of the aquatic box, by means of its terminal disk. The cilia of the acontium had, in their rowing action, brought it into contact with the sucker, round which it then continued slowly to revolve. The result I presently discerned to be, that a considerable number of the cnidee had shot their ecihoraa into the flesh of the sucking disk of the Echinoderm, and were seen sticking all round its edge, the wires imbedded in its sub- stance even up to the very capsules, like so many pins stuck around a toilet pin-cushion. To test this power of penetration still farther, as well as to try whether it is brought into exercise on the contact of a foreign body with the living Anemone, I instituted the following experiment. With a razor I took shavings of the cuticle, from the callous part of my own foot, as from the ball of the toe, and from the heel. One of these shavings I sxxYin IKTKODUCIION. presented to the tentacles of a fully expanded T. crassicornis. After contact, and momentary adhesion, I Avithdrew the cuticle, and examined it under a power of 600 diameters. I found, as I had expected, cnidce studding the surface, standing up endAvise, the Avires in every case shot into the substance. They Avere not numerous — in a space of '01 inch square, I counted about a dozen. I then irritated a S. parasitica till it ejected an acontium, and taking up Avith pliers another shaving of the cuticle, alloAved it to touch the acontium, Avhich instantly adhered across its surface. I noAv drcAV aAvay the cuticle gently, so as not to rupture the acontium, and examining it as before, immediately saAV dense groups of cnidce, standing endAvise on the surface, the ecthorcea all discharged and inserted in the substance almost to the A^ery capsules. The groups Avere set in a sinuous line, across tlie cuticle, Avhei'e the acontium had adhered, Avith scattered cnidce betAveen them on the same line. In one of these groups I counted thirty- five cnidce in an area about ’0025 inch square. These examples prove that the slightest contact Avith the proper organs of the Anemone is sufficient to provoke the discharge of the cnidce; and that even the densest condition of the human skin offers no impediment to the penetration of the ecthorcea. As to the injection of a poison, it is indubitable that pain, and in some cases death, ensues even to Axrtebrate animals from momentary contact A\dth the capsuliferous organs of the Zoophyta. The very severe pain, folloAved by torpor, lasting for a Avhole day, Avhich Mr. George Bennett has described as experienced by himself, on taking hold of Physcdis pelagica, Avas produced by the contact of the tentacles. The late Professor EdAvard Forbes has graphically depicted the “prickly torture ” Avhich results to “ tender-skinned bathers,” from the touch of the long filamentous tentacles — “poisonous threads” — of the Cyanoea capillata of our oavu seas ; and observes that these ampu- tated Aveapons severed from the parent-hody, sting as fiercely as if their original proprietor itself gave the Avord of attack. I have been assured by ladies that they have felt a distinct stinging sensation, like that produced by the leaves of the nettle, on the tender skin of the fingers, from handling our common Anthea cereus ; Avhile, on the other hand, I haA^e myself handled the species, scores of times, INTRODUCTION. XX XIX ■with impimity. And I liave elsewhere* recorded an in- stance, in which a little fish, swimming about in health and vigour, died in a few minutes -with great agony, through the momentary contact of its lip with one of the emitted acontia of Sagartia parasitica. It is worthy of observation, that, in this case, the fish carried away a portion of the acontium sticking to its lip ; the force with w'hich it ad- hered being so great, that the integrity of the tissues yielded first. The Acontium severed, rather than let go its hold.'\ Now, in the experiments which I have detailed above, we have seen that this adhesion is effected by the actual impenetration of the foreign body, by a multitude of the ecthoreea, whose barbs resist wdthdrawal. So that we can with certainty associate the sudden and violent death of the little fish with the intromission of barbed ecthorcea. I have instituted some experiments with a view to try whether acid or alkaline properties could be detected in the (presumed) fluid which is discharged. First with a solu- tion of indigo, and afterwards with the expressed juice of violets, I occupied the plate of the compressorium ; and in the flattened drop made the cnidcB in the acontium of S. parasitica to emit. In the case of the indigo, the colouring matter remained in the form of masses, but the juice of violets affords an apparently homogeneous fluid, even "when reduced by pressure to an excessively thin film. I could not detect, even with the most careful scrutiny, the slightest tinge of discoloration of the blue fluid, — not the most delicate shade of red or green — along the side of the emitted ecthoraa, nor in the vicinity of the cnida. And * “ The Aquarium,” ed. 1. p. 115. t Dr. Waller has recently recorded an interesting experiment which he made with Act. mesembryanthemum. He allowed its tentacles to touch the tip of his tongue. “ The result was such as to satisfy the most scep- tical respecting the offensive weapons with which it is furnished. The animal seized the organ most vigorously, and was detached from it with some difficulty after the lapse of about a minute. Immediately a pungent acrid pain commenced, which continued to increase for some minutes, until it became extremely distressing. The point attacked felt inflamed and much swollen, although to the eye no change in the part could bo detected. These symptoms continued unabated for about an hour, and a slight temporary relief was only obtained by immersing the tongue in cold or warm water. After this period the symptoms gradually abated, and about four hours later, they had entirely disappeared. A day or two after, a very minute ulceration was perceived over the apex of the tongue, which disappeared after being touched with nitrate of silver.”— (Proc. Roy. Soc. April 14, 1859.) xl INTRODUCTION. though, in order to obtain a greater intensity of eolour, I allowed a drop of violet-juice to dry on each plate of the compressorium , so that with a power of 800 diameters, the whole field was of a deep uniform translucent blue — still the ejected wire produced no change of tint. Such a test as this is not sufficient to prove that no acid or alkaline property exists in the discharged fluid, and still less that no poisonous fluid at all is effused ; since that most concentrated poison, the venom of the rattlesnake, is said to change vegetable blues to reds, in so slight a degree as to be scarcely perceptible* Admitting the existence of a venomous fluid, it is diffi- cult to imagine where it is lodged, and how it is injected. The first thought that occurs to one’s mind is, that it is the organic fluid which we have seen to fill the interior of the cnida, and to be forced through the everting tubular eciho- rceum. But if so, it cannot be ejected through the ex- tremity of the ectTio7'oeum, because if this were an open tube, I do not see how the contraction of the fluid in the cnida could force it to evolve; the fluid would escape through the still inverted tube. It is just possible that the barbs may be tubes open at the tips, and that the poison-fluid may be ejected through these. But I rather incline to the hypothesis, that the cavity of the ectliorcBum in its primal inverted condition while it yet remains coiled up in the cnida, is occupied with the potent fluid in question, and that it is poured out gradually within the tissues of the victim, as the evolving tip of the wire penetrates farther and farther into the wound. I Perhaps it is not too much to say that the whole range of organic existence does not afford a more wonderful example than this, of the minute workmanship and elaboration of the parts, the extraordinary mode in which certain pre- scribed ends are attained, and the perfect adaptation of the contrivance to the work which it has to do. * In a communication made by Dr. M'Donnell to the Royal Society, some experiments were detailed, which bad led the observer to believe that electricity was the power in question. In a subsequent paper, however, that gentleman gave up his hypothesis. {Proc. Roy. Soc. Jan. 14, and Nor. 18, 1858.) 90, line 9 EREATUM IN PART III. ! “lowest pan of each tentacle ( full orange.” BRITISH SEA-ANEMONES. GENERAL DESCRIPTION AND EXPLANATION OF TERMS. As it is of great importance in scientific description to employ precise terms for the various parts of the objects described, and for the conditions of those parts, and to use the same terms always in the same sense, I here define the terms which I propose to use in this work. The principal parts of the body of a Sea- Anemone are the following : — the base ; the column ; the disk ; the tentacles ; the mouth ; the cavity. 1. The Base (Basu). This is the lowest part of the animal, usually forming a flat area, by means of which it adheres to other bodies. It is often expanded {expama), its outline being consi- derably broader than a section of the column. In some cases, as in Edwardsia, it becomes very small, loses its function, and finally, as in Cerianthus, disappears. In Adamsia, it is greatly extended laterally into two wings, which, curving round, meet and unite by their edges, forming a complete circle. This form of base may be distinguished as annular [annularis). B 2 GENERAL DESCRIPTION 2. The Column {Columna). The body rises in a more or less cylindrical shape, when the base is attached, like the trunk of a tree, often gi'ace- fully and rapidly diminishing from the basal expansion, and sometimes dilating towards the upjjer extremity : — this I call the COLUMN. At the summit {vertex), the column is, as it were, cut off transversely, forming a distinct MARGIN [margo). In some cases, as in Actinoloba, the margin rises into a thickened parapet [tichium) or low wall, separated from the tentacles by a groove or fosse (fossa). In others, there is neither parapet nor fosse. The margin may be NOTCHED (crenata) ; or, instead of notches there may be distinct tentacles, constituting the outer row of these organs ; in this case the margin is tentaculate (tentacidata). The surface of the column may be quite smooth (Icevis) ; studded with low warts, — warty (verrucosa) ; or marked with longitudinal sunken lines, — FURROWED (sulcata). When the furrows are deep and the intermediate spaces swell out in a rounded outline, it is invected (invecta) ; when the column is surrounded by transverse wrinkles, it may be called insected (insecta) ; when these insections are so deep as to seem to cut-off or divide the body into parts, it is constricted (constricta) ; when the surface is crossed by numerous longitudinal and transverse wrinkles, it is CAN- CELLATED (cayicellata) ; when minutely and very irregularly wrinkled, like the bark of a rough tree, it is CORRUGATED (corrugata). Some of these conditions are not permanently characteristic of any species, but are assumed temporarily during the changes of form induced by contraction. As to substance, the column may be tough and resisting, approaching a leathery consistence (coriacea) ; fleshy (carnosa), when soft but moderately firm ; or pulpy (pulposa), when very soft and yielding. AND EXPLANATION OF TERftlS. 3 The WARTS {verrucce)^ in some speeies, are hollow, and furnished with a muscular arrangement by which a vacuum is formed, and the edges adhere firmly to foreign bodies ; these may be called suckers {acetahula). Other species have the skin and the muscular beds beneath it pierced with minute orifices, for the emission of armed threads ; these may be called loop-holes {cinclides). 3. The Disk {Facies). This is the flattened upper extremity of the column, as the base is the flattened lower extremity. Its outline is circular ; and this is recognised without difficulty when, as is usually the case, the edge is plane {plana) ; but some- times the edge is wavy {undulata), as in hellis ; or even deeply frilled {sinuosa)^ as in dianthus. In Actinia proper, the disk bears, just within its margin, a row of spherules {splicerulce marginales) ; and, in every species, it carries the tentacles, and is pierced at the centre by the mouth. Converging lines {radii) cover the surface of the disk, starting from each tentacle-foot and meeting around the mouth. One radius on each side of the disk, leading to each mouth-angle {gonidium)^ is often more marked than the rest ; these may be termed GONIDIAL radii {radii gonidiales). 4. The Tentacles {Tentacula). These are hollow cones springing from the siu'face of the disk, and arranged in one or more series of circles towards its margin. When there are more circles than one, that circle which is nearest the centre may be called the first ROW {series prima) ; that which stands next to it towards the margin the SECOND {series secunda) ; and so on till we reach the outermost {series extima). Witli respect to each individual tentacle, its FRONT {untied) is that aspect u 2 4 OtEnekal description which is next to the centre; its BACK (jyostica), that which is next to the margin ; its RIGHT and LEFT sides (latus dextrum, 1. sinistrum), those which depend upon these indications. Each tentacle has a foot {radix) and a tip {apex). 5. The Mouth (Os). The entrance to the stomach is placed, as has been stated above, in the centre of the disk. It is surrounded by a generally thickened lip [labium), which is sometimes elevated on a cone [colliculus), and sometimes level. The LIP may be smooth [Iceve), or FURROWED [sulcatum) ; at each of two opposite points, — the mouth-angles [gonidia), — there are placed two tubercles [lentigines) , between which opens an imperfect tube or groove formed by the approxi- mation of two cartilaginous bands : these grooves, one at each mouth-angle, may be termed gonidial grooves [canales gonidiales). Their function appears to be that of oviducts. (In Actinoloba, there is but a single mouth- angle, and a single groove).* From the lip descends into the cavity of the body a membranous veil, much gathered into folds, but free at the lower edge, like a sack without a bottom ; this is the STOMACH [stomachus) , of which the portion immediately below the lip may be conveniently termed the throat [gula). 6. The Cavity [Venter). The whole of the region included between the walls of the column and the stomaeh-wall, and between the free edge of the stomaeh and the base, may be indicated by this term. It is divided into imperfeet ehambers by * In Actinopsis, a singular form recently described by Messrs. Danielssen and Keren from the Norwegian coast, the gonidial tubercles are prolonged into a pair of long and rigid semi-cylinders, the sides of which are bent downwards, and the tips of w’hich are cleft. AND EXPLANATION OF TERMS. 5 perpendicular muscular partitions {septa), all of which are inserted into the column-wall, hut advance into the cavity in various degrees. Some are inserted by their inner edge into the stomach-wall, completely dividing-ofF the cavity : these may be called primary septa {septa primordialia) . Others are placed intermediately between these, which do not reach the stomach-wall ; these are secondary septa {s. secundaria). Others, again, are intermediate between these and the former, whose height is still lower (these may be distinguished as tertiary (s. tertiaria) ; and so on, if tliere be any series beyond this. The spaces thus parted off in the cavity, I would call intersepts {intersepta). The free edges of the secondary and tertiary septa, and also of the primary ones below the stomach, carry a thin membrane which encloses the ovaries {ovaria), and is terminated by a sort of CORD {craspedum), much twisted and involved. Long missile cords {acontia) are in some species attached by one end to the partitions, and lie coiled- up, or float freely, in the intersepts : these are, by the volun- tary contractions of the animal, forcibly ejected through the loop-holes, into which they are then gradually withdrawn. Both the craspeda and the acontia are almost wholly com- posed of THREAD-CAPSULES {cnidce), which contain a coiled WIRE {ecthormim). This wire is shot out under particular stimulus, and is an efficient weapon of offence ; it is usually surrounded with one or more spiral bands composing the SCREW {strehla), each of which carries a series of barbs {pterygia) ; and the whole apparatus is a vehicle for the infusion of some highly venomous fluid. The different conditions assumed by the animal, may be distinguished as the FLOWER {anthus), Avhen the disk with its tentacles is expanded; the button {oncus), when these are retracted and concealed by the closing over them of the summit of the column. 6 CLASS ZOOPHYTA. Animals of radiate structure; of gelatinous or fleshy substance ; more or less column-shaped ; having, in general, one end permanently attached or temporarily adherent to foreign bodies ; the other end forming a flat disk surrounded by one or more circles of tentacles, and pierced in the centre by a mouth opening into the digestive cavity ; furnished with offensive weapons in the form of capsules imbedded in the tissues, each of which encloses a projectile poisoning dart ; possessing no special organs of sense. OKDER ACTINOIDA. The visceral cavity inclosing the stomach, and divided into compartments by perpendicular partitions of membrane which support the reproductive organs ; germs ejected through the mouth. SUB- ORDER ACTINARIA. Tentacles twelve or upwards, rarely warty ; membranous partitions sometimes simple, sometimes depositing solid calcareous plates, which, with the surrounding walls, con- stitute the coraUum. TRIBE I.— ASTR^ACEA. Tentacles many, in imperfect series, or scattered ; coral- lum (when present) calcareous, consisting of cells containing many radiating plates; the plates prolonged outward beyond the cells which enclose them. (N.B. No known British species of this Tribe deposits a coralhim.) TRIBE II.— CARYOPHYLLACEA. Tentacles many, in two or more series ; mostly increasing by lateral buds ; generally depositing a coi'aUmn, which is invariably calcareous, and many-rayed. 7 : TRIBE III— MADREPORACEA. Tentacles in a single series, twelve (rarely more), some- times ol)3olete : gemmiparous ; gemmation lateral : coral- ligenons ; cm'allum calcareous ; cells [calyces] quite small : rays [septa] six to twelve, or obsolete : interstitial surface not lamello-striate. [Not British.) TRIBE IV.— ANTIPATHACEA. Animals with six tentacles, forming at the base horny secretions (fleshy, enveloping a horny axis). [Not British.) TRIBE L— ASTR^ \CEA. ANALYSIS OF THE NON-CORALLIGENOUS FAMILIES. Base adherent at pleasure. Tentacles compound (Not Britiish) MetrkUada. Tentacles simple. Column pierced with loop-holes Sagartiada. ^ Colirmn imperforate. Column smooth. Margin simple AntJieadce. Margin beaded *. . . Actiniadoe. tyl Column waited Bunodidce. / St? Rise non-adherent. Lower extremity rounded, simple I/yanthida. J J Lower extremity inclosing an air-chamber Minyadida. 8 TRIBE L— ASTR^ACEA. All the members of this Tribe with which we are fami- liar on the European shores are simple, and destitute of a corallum. But when those of all seas are taken into con- sideration, we find that the majority are compound and coralligenous. The increase of these is effected by the budding forth of new polypes from the single primary polype ; and it is in the manner of this gemmation that the tribe Aslrc&acea differs from the Caryoj^liylliacea. In the former, increase invariably takes place by the extension of the summit, and not of the side or base. The process of widening, in budding polypes, may be confined to the parts exterior to the disk and visceral cavity below, or the disk and cavity may continuously enlarge ; in the latter case, the buds open in the disks, the process of budding being the cause of their enlargement (Dana). The greater part of the Astrcecicea increase by disk-buds, and spontaneous subdivision ; the disk of the polype, and the cell of the corallum, gradually widening by growth, and finally separating into two portions, which become in- dependent. A few only widen exteriorly to the disk, or in the interstitial spaces between the cells of aggregate corals (Dana). The polypes in both this and the following tribe are many-tentacled ; but, while this character distinguishes them from the two other tribes, it is of no assistance in discriminating those species with which we have to do. Moreover, as our Astraeacea are all simple, it is difficult to apply the rule derived from the manner of gemmation. The spontaneous fission of some species, however, as Actinoloba diantlius, partially, Antliea cereus completely, may help us to assign their affinities ; and their general resemblanee, inter se, and that of the whole to the polypes of the coralligenous Astraacea, leave little room for un- certainty. 9 FAMILY L— METRIDIADiE. {No European species.) FAMILY IL— SAGARTIAD^. I have thought tit to associate in this group those genera of the Tribe, which have the following characters : — They do not deposit a coraUum. They have a broad base, capable, at the pleasure of the animal, of firmly adhering to foreign bodies, such as rocks, stones, and shells ; or of being used as a foot, on which to creep, somewhat in the manner of a snail. They have always simple, smooth tentacles, arranged in (generally) unintemipted circles at the margin of the disk, but often encroaching far upon its surface. Their body is for the most part pulpy or fleshy, generally lubri- cated on the surface with copious mucus ; its exterior is often studded with sucking cavities, hicli have the power of adhering to foreign bodies, by the formation of a vacuum within the cavity, its muscular edges being appressed by the weight of the superincumbent atmosphere and water. The margins of these cavities do not rise into conspicuous warts when inactive. The integument is pierced with loop-holes {cinclides), — special orifices, through which are emitted and retracted fleshy cords {acontia), which liave their origin in the membranous partitions of the body- cavity. These arc filled with capsules {cnidce), which arc generally chamhered, and which shoot a very short, but densely-armed wire {ecthormm). ANALYSIS OF THE GENERA. Tentacles moderately long, slender. Disk perfectly retractile. Column destitute of suckers Column fumished with suckers Column clothed with a rough ei^idermis . . . Disk imperfectly retractile. Base annular ; parasitic on shells Base entire ; not parasitic Tentacles mere warts ; set m radiating bands {Not British) ... Actinolola. Sagartia. Phellia. Adamsia. Gregoria. Biscosoma. 11 GENUS I. ACTINOLOBA (Blainv.). Actinia (Linn.). Cribrina (Ehrenberg). Sayartia (Gosse). Base considerably broader than the column ; its outline often undulate, but entire. Column pillar-like, in the expanded state ; the margin forming a thickened parapet, or low wall, separated from the tentacular disk by a groove or fosse. Surface perfectly smooth, without suckers, but pierced with loop-holes. Substance approaching to pulpy. Bisk deeply frilled at the margin ; thinly mem- branous. Tentacles short, slender, not arranged in distin- guishable circles, scattered at their commencement about half-breadth, of the disk, becoming gradually smaller, more numerous and densely crowded as they approach the border. Mouth surrounded with a thick lip ; furnished with only a single gonidial groove, surmounted by a single pair of tubercles. Acontia emitted somewhat reluctantly, but copi- ously upon occasion. Only one British species. AST ACE A. SAGARTIADiE. THE PLUMOSE ANEMONE. Actinoloba dianthus. Plate I. Fig. 1. Specific Character. Body smootli, columnar when distended ; five inches and upwards in height : mouth strongly furrowed, rufous ; tentacles marked with a ring of white. Actinia dianthus. senilis. judaica. pentapetala. plumosa. aurantiaca. Actinoloba dianthus. Sagartia dianthus. Ellis, Phil. Trans. Ivii. 436; tab. xix. fig. 8. Johnston, Br. Zooph. Ed. 2. i. 232; pl.xliii. Daltell, Anim. of Scothmd, 235 ; pi. xlviii. figs. 6. 7 ; xlix. Gosse, Aquarium, Ed. 2. 182 ; pi. V. Tugwell, Manual of Sea Ane- mones, 56 ; pi. i. Linn. Syst. Nat. 1089. Ibid. Syst. Nat. 1088. Penn. Br. Zool. iv. 104. Muller, Zool. Dan. iii. 12 ; tab. Ixxxviii. ; figs. 1, 2. JoRD.^N, Annals. N. H. Ser. II. vol. xv, 85. {juv.)- Blainville, Actinologie, 322. Gosse, Man. Marine Zool. i. 28. GENERAL DESCRIPTION. Form. Base. Adherent to shells and stones ; expanded considerably beyond the diameter of the column. Column. Smooth, lubricated profusely with mucus; destitute of suckers, warts, wrinkles, furrows, and corrugation.s. Substance fleshy, approaching to pulpy. Form cylindrical, terminating in a simple thickened pai'apet, which is separated from the outer tentacles by a fosse. Disk. Widely expanded, thin, greatly overhanging the column, deeply frilled. Tentacles. Exceedingly numerous, moderately large and scattered at about the middle of the semi-diameter of the disk, but becoming smaller and closer outward, until they are excessively crowded, and very minute at the margin. In extreme youth they are comparatively few, and much longer in proportion. Mouth. Not raised on a cone ; lip thick, divided into lobes by strongly marked furrows. A single groove only at one of the mouth-angles, guarded by a pair of tubercles. PL^TK 00 ACTINOLOBA DIANTHUS 3 SACARTIA TROGLODYTES 7 SACARTIA VENUSTA. SACARTIABELLIS 456 S H03EA 8 9 qpuivPnrirTA THE PLUMOSE ANEMONE. 13 Colook. Column. Olive, olive brown, umber-brown, red-lead, pale-orange, salmon- red, flesh-colour, cream-white, pure white. [“ Lemon-yellow,” “ peach- blossom.” — Dalye ll. ] Disk. Agrees with the column. Tentacles. Generally agree with the column, but in the olive and brown varieties, they are sometimes almost wholly pellucid-white, and in all cases they are marked with a single transverse bar of white, near their middle ; most conspicuous in youth. lAp. Always rufous, or orange-red ; whatever the hue of the body. Size. Specimens occasionally attain six inches in height, and three in thickness. Locality. All round the coasts of Europe, in deep water, and on dark rocks between tide-marks. Varieties. These might be made as numerous as the various shades of colour above- mentioned ; but for practical purposes it may be sufficient to distinguish the following : — a. Brunnea. Including the shades of brown, from dingy blackish olive, to warm umber, or fawn-colour. Sometimes, as in examples that have fallen under my own observation, the tentacles, in these brown specimens, are almost white, marked with the more opaque white bar. There is not the slightest reason to assign these, as has been suggested, to another species. j8. Ruhida. The various tints of red, from the full minium-scarlet to the peach-blossom and flesh-colour, may be classed under this variety, w'hich is perhaps the most abundant of all. 7. Flava. Sir John Dulyell enumerates “ lemon-yellow ” among the hues of this species ; but it must be a very rare variety. I have never seen it. 5. Sindonea. Perhaps this is the most elegant variety ; the animal being clad in translucent white — “ simplex munditiis," as if arrayed in the finest Goan vestments. It is not uncommon. This noblest of our native Sea-anemones seems to be entitled to generic separation from the Sagartice, with which I have hitherto associated it. Its form and habit, its puckered disk, its crowded and fringe-like tentacles, its thickened parapet and deep fosse, and the presence of only 14 SAGARTIADJ2. a single mouth-groove, are well-marked characters peculiar to it among our British species. This last peculiarity isolates the species from every other with which I am acquainted. The generic appellation Actinoloha, I have adopted from De Blainville, who formed the genus in his “ Actinologie” (1834). It is sufficiently expressive ; hut ohjectionable on account of its construction. It is a good canon that no generic name ought to form a part of a second generic name. In this case the word is constructed out of Actinia^ and Xo/3o<;, a lobe or flap : it means, therefore, “ the lobed Actinia.” If it had been formed of the element a/crtV, a ray, the construction would have been unobjectionable, though the word would have been false in signification ; for what the French zoologist wished to express was “ a lobed Actinia,” not “ a creatiu-e with lobed rays (= tentacles).” The specific name, dianthus^ is due to a pretty fancy of Ellis, the father of English Zoophytology. Observing the resemblance which the Actinice, bore to composite or many- petaled flowers, — a resemblance which is perpetuated in the popular appellation. Sea- Anemones, — he named such as were known to him after those lovely objects ; helUs^ the daisy ; mesemhryanthemum, the fig-marigold ; dianthus, the pink. I do not know that we are to seek for special resemblances to the particular flowers chosen ; one q)oly- petalous flower might have served as well as another : still less shall we find any etymological significance in the appropriation. For the latter we must go back to the flower. In the present case, the pink and carnation genus is named dianthus, some say, for its great beauty (8409, divine, dv0o<;, flower^ ; but it may be from its tendency to become double [81, the sign of duplication, SLavd})ri7na-facie re- semblance to S. venusta; but the specific marks of the tentacles, the strong crenation of the mouth, and the well-defined and concentrically striate i’adii are good signs of distinction. (Plate ii. fig. 3.) * IMy friend Mr. F. H. West has received a specimen from the vicinity of Boulogne, with the disk more variegated than is usual Avith our specimens, and which had this peculiarity, that one-half of the disk was flushed with a delicate rose-pink, and the opposite half with an equally lovely shade of green. PI.ATK 11 I. 8. SACARTIA NIVEA 234. S MINIATA 6 S. TROGLODYTES 7. S ICTHYSTOMA 6 S PARASITICA 9.10, S ORNATA THE SCAELET-FRINGED ANEMONE. 43 •y. JRoseoules. Column orange-brown ; disk palo yellowish-grey ; ten- tacles rose-coloured, with the proper markings ; and the outer row either wholly or partially scarlet-cored. Dartmouth, Plymouth. This is esceed- ingly like S. rosea. (See the article on that species.) 5. Niveoides.* Column drab-olive. All the tentacles opaque white, except five groups sub-symmetrically arranged, each group comprising a few tentacles of a pale orange-buff hue. A single specimen in the possession of Mr. G. H. King, of Torquaj", obtained by him in the vicinity. €. Coccinea. Column deep pellucid crimson : tentacles crimson. This approaches a common state of A. mescmbryanthemum in its api^earance and colouring ; its suckers, however, will in a moment distinguish it on exa- mination, and the usual row of orange-cored tentacles determines its true character. (Plate ii. fig. 2.) f. Brunnea. Column umber- or even bistre-brown, with pale suckers : tentacles with the characteristic bars much disguised, and almost lost in a general cloud of dusky black occupying the lower half of the tentacle : this is divided by a naiTOW whitish band from the terminal half, which is pellucid umber. The tentacles ai-e unusually long. Those of the outer row are not all scarlet, some being white; all, however’, have the cored appearance. Torquay. It may suffice to particularise these varieties, hut spe- cimens are frequently found combining the characters of several, and running into one another by imperceptible gradations. I obtained a very young individual at Wey- mouth, which I assign to this species, in whieh the ten- tacles of all the four rows were cored with the richest orange. I first became acquainted with this very fine species in the summer of 1853, at Weymouth, wdiere I found several specimens adhering to the shells of oysters and pectens, brought to market by the trawlers. Since that time I have met with it in some abundance in the neigh- bourhood of Tenby, especially on the eroded surface of some dangerous rocks, known as the Woolhousc Eocks, lying about a mile off shore, and exposed only at low’ Avater. In the pools and hollow’s of this reef, open to * In these compounds I take the liberty of using the elements “ venusta,” “ rosea,” and “ nivea” not as Latin adjectives, but as words now having the force of proper names. 44 SAGAETIAD^. investigation only under favourable cireumstances of wind and weather at the equinoctial spring-tides, this, with other lovely kindred species, as rosea, nivea, &c., expands its beautiful blossom, in charming abundance. But still more profusely does it occur in certain situations in the vicinity of Torquay. The line of shore between the Baths and Meadfoot is very bold, and a great number of precipitous insular and peninsular rocks fringe the sea- margin. When the tide is very low, and when the sea is very smooth, a small boat can penetrate into the narrow straits and caverns formed by these fragments : and there, on their landward sides, where the rays of the sun never reach, may be seen myriads of Anemones, chiefly of this species, but mingled with dianthus, rosea, and nivea, and varied by a vast number of Alcyonium digitatum, which beneath the surface of the clear water are seen blossoming with their lovely polypes. The finest specimens I have seen are those which Mr. W. A. Lloyd obtains from the iMenai Straits. The species seems to be specially abundant in that locality, and specimens two inches in diameter are not at all rare. The varieties ornata and hrunnea are the prominent forms. The habit referred to, under S. hellis, of greatly lengthen- ing one of the tentacles, is possessed by this species also. Mr. E. W. H. Holdsworth has favoured me with the fol- lowing note. “ In two specimens of the Rosy-armed miniata [var. roseoides\ I have observed a remarkable elongation of one of the tentacula, apparently of the second row. Under the microscope the surface appeared corru- gated [or transversely annulated], but mostly so when the arm was fully distended, and the corrugations were most decided at the free end, which was enlarged, truncate, and slightly dimpled at the centre. No use was made of this long arm when the animal was feeding : _ it hung down as THE SCARLET-FRINGED ANEMONE. 4o if it did not possess any particular function. It had the same colour as the others ; but was not, like them, wholly withdrawn when the animal was closed. In fact, it appeared as if rather in the way, and not easily disposed of by its possessor. After about a week [the phenomenon] disappeared, and I have seen nothing of the lengthened arms since, in either of the specimens that had had them.” Those curious missile filaments which I have named acontia,'^ are discharged by this species in great profusion. They are, as usual, white, but appear to possess the power of discharging a pigment. A large specimen, which I had irritated by forcibly detaching it (in the usual way) from a stone, diffused a copious mucus. Acontia were also abundantly protruded, and spread to double the diameter of the body on all sides, on the bottom of a saucer in which I had placed it. After a while the whole of this mucus over the same area was of a delicate hut decided roseate hue^ as seen on the white china. The acontia are very densely filled with cnidce, of two kinds, chambered and unchambered. The former are -g-Jirth of an inch in length, linear-ovate, of a clear pale yellow hue, highly refractile, with a long parallel-sided chamber, extending through three- fourths of the cnida. It discharges a wire (ecthorceum) about one and a half times its own length, furnished for the distal two-thirds with a screw of two (or three) spiral bands, closely set, and forming an angle with the axis of 30° : the bands are clothed with reverted barbs. The unchambered cnidse are -g^th of an inch long, of a similar shape, shooting a wire to eight times its own length, which is attenuated to a fine point, and is furnished with a single screw-band, unbarbed. When out of water, miniata has the habit of protruding * See the General Introduction, for a full description of these organs. 46 SAGAETIAD^. the wall of the stomach, almost to as great an extent as B. crassicornis. This is specially seen when the specimens hang from the perpendicular face of a rock. According to Mr. Holdsworth, S. mimata increases by spontaneously separated fragments of the base, like A. dianllius. He says, — “ I have had two young ones of mimata produced from bits of the base detached Aom a large specimen, which 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 which 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 cmi-ents ; and I isolated one. It was of a sub-nautiloid form, irregularly convolute, much like a Bursaria, about xi^tlis of an incli in long diameter, -j-o^ths in lateral, and about tfinr^hs 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. Pliys. Soc. THE SCAKLET-FllINGED ANEMONE. 47 ornata \_=Sag. miniatci] in the last six months, were horn with a double row of tentaeles, 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, Bev. 11. II. Domhrain : Weymouth, P. II. G. : Torquay, P. II. G.: Dartmouth, E. W. II. II.: Plymouth, Pr. G. Dansey: Ilfracombe, W. A. Lloyd: Tenby, P.H. G.: 3[enai Strait, TV. A. L.: Hilbre Island, E. L. IV.: Arran, T. S. IV. : Cumbrae, D. B. bellis. MINIATA. rosea. ornata. ichthystoma. ASTRjEACEA. SAOARTIAD^. 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. pulcherrima. • vinosa. Sagartia rosea. Gosse, Devonshire Coast, p. 90, pi. i. figs. 5, 6 (var. vinosa). Jordan, Ann. N. H. Ser. 2, vol. xv. p. 86 (var. pulcherrima). Holds WORTH, Proc. Zool. Soc. 1856 (var. vinosa). Gosse, Tenby, p. 365. Frontisp. (var. Fe- 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 shell occasionally adhere. Substance fie.shy. Form in expansion elongate, cylindrical. Fish. A shallow cup, the margins occasionally undulate. Radii strongly marked, and covered with transverse striae. Tentacles. Moderately numerous, in four or five rows, nearly equal in length (but this varies according to the variety) ; often arching regularly 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. Fish. Pale silvery olive, without markings, except an ill-defined 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 upper is the thicker. Mouth. 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 corner 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 oHve. 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. Erythrops. 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. 5. 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 ArjpLrjTal, the ancient inhabitants of that part of Wales. All are beautiful ; but perhaps jtulckerrima, as its name imports, is the loveliest of all. E 50 SAGAETIADiE. There is no doubt that S. miniata and S. rosea approxi- mate in some of their 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 rosece and o 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 vexaia, — 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\\xtfo7'm distinguishes the species, colour only the variety. But this is quite untenable. In many instances colour is not only specific, but even generic ; — as black, white, and red, in well-recognised patterns and in certain fixed regions of the body, in the Woodpeckers ; black, yellow and red, again in certain patterns, in Paqnlio ; yellow, red and white in the Pieridce. Indeed, our entomological friends would be sorely puzzled to define their 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 wliat we require ; let us only indicate any mark that is invariahly found, — no matter whether it be colour, form, pattern, surface, sculpture, or any thing else ; or any combination of THE KOSY ANEMONE. 51 tliese, and wc have a good specific character. I believe, with Mr. Wallace, 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 formulaj, differ 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 Lidstep, or on the Woolhousc 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 Ehodymmia * Zoologist, p. 5S83. £ 2 52 SAGARTIAD^. pahnata that spring from the edges, you see the dark hi'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 veiiustce. Then indeed the sloping sides and bottom resemble a parterre, of wliich 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, ghstening 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. c7'assicorn{s, 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 eoils, having penetrated through the open base of the tentacle from the intersepts of the body- THE 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. II. G. : near Paignton, Rex>. W. F. Short: Dartmouth, E. TF. H. II. : Tenby, Lidstep, St. Gowan’s Head, P. H. G: Bantry Bay, E. P. TF. miniata. ROSEA. ■ t venusta. nivea. ASTR^EACEA. EAGARTIAD.E. THE ORNATE ANEMONE. Sagartia ornata. Plate II. Figs. 9, 10. Specific CTiamcter. Basal region of tlie tentacles, and the outer region of the radii blackish : a vrhite bar across the former, and a white cordate spot on the latter. Actinia ornata. Holdsworth, Proc. Zool. Soc. 1856. PI. v. figs. 5, 6, 7, 8. GENERAL DESCRIPTION. Form, Ease. 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 rapidly as they approach the margin. Mouth. Not raised on an obvious cone. Lip tumid. Aconlia. Emitted freely. Colour. Column. Dark orange-brown, paler at the base. Suckers pale. Eislc. 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 surrounding the bases of the tentacles, according to the following arrangement. The first tentacle may be said to arise from the space heticeen two pairs of bands, the second being situated within the pair;* the band bifurcates near its exti’emity, and incloses the third tentacle : these branches again divide and form a similar inclosure for the tentacles of the fourth row :+ 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 ai'e narrower than the primary. t Hence the yellow bands are doubtless the united radii of the tertian 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 bands.” On each primary radius is a large heart-shaped spot of cream-white, well defined, in 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. TENTACLE [front vieio). 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 laniinarian zone. Varieties. a. Fusea, The condition above described. 0. Fubida. 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 iMr. Holdsworth, who described it in detail, with accompanying drawings, in a Memoir read before the Zoological Society of London, Dec. llth, 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 beautiful drawings, whicli 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 coloiu’ing and elegance of marking, will bear comparison 56 SAGARTIADJi. 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, but were always found nestling among the roots of Laminaria digitata." The variety rubida was described in the same paper. Six specimens were found among the roots of a Laminaria 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. ichthy stoma. ASTR.EACEA. SAGARTIAD.E. THE FISII-MOUTH ANEMO^^E. Sagartia ichthy stoma, {Sp. nov.) PL.i.TE 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. lyisTc. 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 ; neaidy equal in size, very small, short, and conical. Mouth. Set on a large cone. Lip very tumid, coarsely fuiTowed. Colour. ■ 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 efiect 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 efiect. Month. Lip deep rich scarlet. Size. Button half an inch in height. Flower throe-fourths of an inch in diameter. tentacle {front). 58 SAGARTIAD^E. Locality. The south coast of England : deep ■water ; low i-ocks. Varieties. a. Slihista. The condition above described. j3. 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. AV. 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. 59 THE FISII-MOUTII ANEMONE. The acontia contained, as usual, both unchambered and chambered cnidce. The former were linear-oblong, g^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 acontiiim 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 both 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 stibium, 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. ? iCTiTiiYSTo:NrA. B. crassicornis. ? miniata. * See Pliny, Nat. Hist, xi, 37 ; Juv, Sat. ii. 93. ASTR^EACEA. SAGARTIAD.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 upper 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. ' Colour. Column. Warm brown, varying from deep bufi", to full rich brown- orange, often paler towards the lower half, where traces of alternate lon- gitudinal bands of pale and dai'k 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 THE ORANGE-DISKED ANEMONE. 61 ia^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 in 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 liollows 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 G2 SAGAETIADiE. 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 full-blown 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 cliff 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 past tense ; for alas ! it is so no more. When I revisited Tenby in 1856, 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 without 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 combined, probably half a dozen Anemones .are destroyed for one that goes into the aquarium. THE OEANGE-DISKED ANE3IONE. ca “ On tlie south side of this wall, almost at its base, on a rough mass of rock so covered with luxuriant tufts of Dulse [Ithodpnenia 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 inehes deep ; in other words, about the size of a soup- tureen. 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 [Sagartia venusta), and twelve of the Snowy {S. nivea), all fully blown ; besides two large Shore- Crabs [Garcinus moenas), a Shanny {Blennius pholis), a Cgntliia, several Sahellce, a group of Sabellaria alveolata^ some very fine masses of Botrglloides, and many specimens of the Crown Sponge {Grantia ciliata). “!Nor was this extraordinary pool less rieh in its botany than in its zoology. Chondrus crispics, finely tipped with steel-blue, as usual ; the Common Coralline ( Corallina officinalis)^ purpling the sides and bottom ; some small fronds of Bhodgmenia palmata, and one or two tiny ones of Laminaria saccliarina, — 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 plumosa. Besides all these, there were other plants and animals of less note, which I did not enumerate.’^* * Teuhy; a Sea-side Holiday; 96, et scq. 64 SAGAIiTIAD^. 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 they do not greatly surpass, in the luxuriance of their marine zoology and botany, any- tliing that we can boast in England. As a companion to the above, I gladly give an Irish picture of S. 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 entomologizing with Messrs. Ilaliday and Furlong in Killarney and Glengariflf, 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 Bock, 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 foiu* 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 debris of shells, and to stick them over their bodies, in the "vray 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 tine 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, both 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. ]SIr. Holdsworth informs me that he has witnessed the production of new individuals from fragments spontaneously F 66 SAGARTIAD^. detaclied from the "base, in S. venusta, as before described in the case of A. diantlms. 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, Br. J. D. Hilton : (on Laminarice washed up) Miss Giiille : Toiciuay, P. H G. : Clovelly (on oysters from deep water), Rev. C. Kingsley: Morte Stone, G. T. : Lnndy, G. T. : Tenby, P. H. G. : St. Gowan’s Head, P. IL G. : Puffin Island, E. L. W.: Bantry Bay, E. P. TF. .• Belfast (abundant), C. Bosanqiiet. 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. ASIR.EACEA. SAGARTIAD^E. THE SNOWY ANEMONE. Sagartia nivea. Plate II. Fifjs. 1, 8. Specific Character. Disk and tentacles opaque wliite, ■without markings. Actinia nivea. Gosse, Devonsh. Coast, 93 ; pi. i. fig. 8. Safjartia nivea. Ibid. Trans. Linn. Soc. xxi. 274. Tenby, 3G8, Frontisp. Annals N. H. Ser. 3, voL i. p. 415. GENERAL DESCRIPTION. Foeji. 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 cylindrical; the height often exceeding the diameter. Dish. Flat or slightly concave ; the margin scarcely undulate. Outline circular. Radii conspicuously marked. Tentacles. About two hundred, ai’ranged 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. Acontia. Emitted freely and copiously. CoLoru. 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 full}' ex- panded, a grey tinge spreads in a circle, near the bases of the tentacles. Occasionally a very faint tinge of yellow suirounds the mouth. Tentacles. Pure snow-white, 02iaque, except when much distended with water; without any markings either on the body or around the foot. Mouth. Lip and throat pure white. Y 2 68 SAGARTIADJi. 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. Locality. The south-west coast of England. Crevices and rock-pools. Varieties. a. Immaculata. The condition above described. 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 Laminarice 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 domi 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 ANEMONE. 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 edulis), 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 {Alcgonium 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 SAGARTIADiE. 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 acquaintanee 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 probability 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. Cowan’s, and the oversliadowed pools of Tenby Head and Lidstep. Here, as we peer into the clear water of these obseure Avells, we see the Snowy Anemone studding the rugged sides by hundreds, like bright stars on the mid- night sky, singly and in constellations. Here, too, swarm its eongeners and companions, the equally lovely rosea and vemista ; 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 perpendieular 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 eurious form of elongation of the tentacles described under S. miniafa. Here, however, no feAver than ten or twelve of the tentacles of the first and second rows hung doAvn, THE SNOWY ANEMONE. 71 straight and motionless, to a distance of two inches from tiie disk. They 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. hellis. (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 nivecB and venustce under Avater, especially among the small mossy groAvth of grass-green Algge, — Bryojosis, Con- ferva, Cahthrix, Enter omor^ha, &c., — Avithout being forcibly reminded of a crop of daisies on a lawn. Mr. Iloldsworth finds it ‘‘not uncommon at Dartmouth, but usually small ; inhabiting crcAuces in steep rocks under sea-Aveeds ; at Guernsey, in sheltered nooks, A^cry fine.” The young do not differ from the parent, except in size and in the number of the tentacles. An infant specimen that Avas born in one of my aquaria, adhered by the base immediately, and presently expanded. It displayed tAA'eh'e tentacles, set in six pairs ; each pair being nearly parallel, and separated by a marked interval from the pair on either side. Nivea riA'als miniata in the profusion Avith Avliich it shoots forth its poison-bearing acontia, on the slightest irri- tation. They arc moderately croAvded Avith cnidee, mostly of the chambered kind, discharging an ecthorceuin little longer than themsch^es, densely armed Avith rcA'ertcd barbs, AA’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. T'F. H. H. : Clovelly (on oysters trawled) , C. K. . Morte, G. T. : Ilfracombe, P. H. G. : Lundy, G, T. : Tenby, P. H. G. : St. Gowan’s Head, P. H. G. : veuusta. NIVEA. sphyrodeta. ASTR.EACEA. SAOARTIAD.E. THE SANDALLED ANEMONE. Sagartia sjyliyrodeUi. Plate I. Fiys. 8, 9. Specific Character. Tentacles few, thick, pm’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; ph viii. figs. 11, 12, 13 (“ The Purple Spotted Anemone”). Sagartia Candida. Ibid. Linn. Trans, xxi. 274 ; Man. Mar. Zool. i. 28. tphyrodeta. Ibid. Annals N. H. Ser. 3, vol. i. p. 415. GENERAL DESCRIPTION. Form. Base. Adherent to rocks; expanded beyond the column. Column. 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 di.stinct. , Tentacles. About forty-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 regnlarly to the external row : their form is stout and conical. They are usually spread horizontally, and have their tips frequently bent downwards. Mouth. Raised on a conspicuous cone, which, however, is not per- manent. Lip capable of great protrusion and distension. Aconlia, Emitted freely and coiiiously. Colour. Column. Marked longitudinally with many bands anjl narrow lines of opaque white, separated by interspaces, always narrow, of pale semi-pellucid brown, or drab. The suininit is occasionally 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 appearance 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 SAGARTIAD.®. wlaich is occasionally TENTACLES OF SPHT- EODETA {vieived verticallij). broien in front, but always passes off behind in a slender wavy line to the margin, where it slightly bifurcates. Frequently the ring dilates into an undefined spot at each side of the tentacle-foot. Sometimes the line passing off to the margin can be scarcely discerned beyond the second row, and sometimes the whole marking seems obliterated. Mouth. Pure Avhite. 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. Xanthoins. 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 was discovered by myself at Ilfracombe. It was during an unusually low spring- tide, in October, 1852. Specimens occurred at that time ill 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 the solid rock at the seaward base of Capstone Promenade. A frequent tendency to a pendent posture was noticed ; for even where the general surface of the rock was perpendicular, many of the Anc- THE SANDALLED ANEMONE. mones W’cre hanging from hcneatli the little points and projecting ledges. In describing these specimens, I suggested the possibility that they might be referred to the Actinia alba of Mr. W. 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 until I see specimens of A. alba from Mr. Cocks’s locality, I dare not assume the identity. From original draAvings with which that gentleman has kindly favoured me, I per- ceive, 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, Avhich are described as “ barred, having opafjue white patches anteriorly,” removes the animal from any species with Avhich I am acquainted. I am not, however, without hope, that before this Avork is closed, the kindness of my Coinish friends may bring me into personal acquaintance Avitli this, and other desiderata of that prolific coast. The substitution of another appellation for that AAdiich I had at first assigned to this species was called for on Iaa'O accounts. First, there was already a species named Candida by ^liiller ; of Avhich fact I was not aAvarc. Secondly, this name proA^ed objectionable. While no specific name may be rejected on account of its ha\’ing no significance, CA^ery one ought to be rejected Avhich has a false sig- nificance. Mr. IIoldsAvorth’s discoveries of the species at Dartmouth and in the Channel Islands have proA’ed, or at * Johnst. Br. Zooph. ; Eel. 2; 217. Rep. Cornw. Polyt. Soc. 1851 ; 6, 76 SAGAKTIAD^. 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 “ Candida^' therefore, became inappropriate as a nomen trtviale ; and I have sought one which should express a more unvarying character. The word “ s])}iy- rodeta" signifies sandalled, from aipvpa, the ankles, and Sea), 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 the disk, however, has nearly vanished, but some traces of it are still to be seen around the mouth. 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 imexpected 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. Tl’’. JI. H. : Dartmouth, E. Ilfracombe, P. H. G. : Hilbre Island, E. L. W. nivea. SPIIYRODETA. pallida. ASTR^ACEA. SAGARTIAD^E. THE PALLID ANEMONE. Sagartia jgaUida. Plate III. F'ujs. 4, 5. Specific Character. Tentacles numerous, slender, white, each rising between two bowed blue lines. Actinia pallida. Holdsworth, Proc. Zool. Soc. 1856, pi. v. fig. 4. Safjartia pallida. Gosse, Annals N. H. Ser. 3. vol. i. ji. 415. GENERAL DESCRIPTION. Fokm. Base. Adherent to rocks ; considerably wider than column ; outline undulate. Column. Smooth, without conspicuous suckers. Substance pul^)}'. Form cylindrical, pillar-like, about twice as high as wide, when extended, but very flat when contracted. Margin a low parapet. Disk. 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 flrst row outwards. They are commonly carried sub-erect, the external rows arching outwards. Mouth. ? Acontia. Emitted from the mouth in some abundance, but not very readily. Colour. Column. Pellucid whitish. White longitudinal lines are sometimes visible, but they are merely the edges of the septa, seen thi’ough the ti’anslucent skin, and not bands of surface-coloui’. Disk. Pellucid whitish. Tentacles. Pellucid whitish. The foot of each ten- tacle is embraced by two curved lines of dark blue, which approach each other without meeting ; and l^ass off in front towards the centre of the disk, and behind towards the margin, in the form represented in the accompanying figure. The general effect is to tentacle of produce a bluish shade on that region of the disk palliea from which the tentacles sin'ing. (viewed vertically). THE PALLID ANEMONE. 79 Size. Diameter of column about one-tbird of an inch ; height of column two- tliirds ; expanse of flower nearly an inch. Locality. South-west coast of England ; rocks between tide-marks. Vaeieties. a. Cana. The colourless state above described. Plate iii. fig. 5. $. Itufa. Column 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 i\Ir. Iloldsworth, who discovered about a dozen specimens 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 Avere 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 his former cajitives in every respect, save that their column Avas of a rufous hue ; the tentacles, hoAvever, ha\dng the same characteristic foot-marks as before. He concluded • Proc. Zool. Soc. 1S5j. 80 SAGARTIAD^. that they were but varying 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 [= sphyrodet(x\. I have now seen, and know both well, and can readily point out the distinctions. Pallida may be easily taken for a young dianthus 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 jyallida 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 captm-es were of a reddish buff, like some of dianthus ; and one of tliese, 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 pallida 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 turned up the stone, and the animal presently crawled off 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 regulffi-ity 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. II. sphyrodeta. PALLIDA. dianthus. a ASTRuEACEA. SAGARTIADJ^. THE TEANSLUCENT ANEMONE. Sogartia ^ura. Plate III. Fig. 6. Specific Character. ‘Wholly pellucid-white, without markings. Actinia pellucida. Alder, Catalogue of Zooph. of N'orthumb. aud Durh., 43. Sagartia pellucida. GossE, Anuals N. H. Sei’. 3, vol. i. jo. 415. jiura. Alder, in litt. GENERAL DESCRIPTION. Form. Rase. Adherent to shells from deep water : somewhat exceeding the column. Column. Perfectly smooth, without visible suckers. Substance puljiy. Form cylindrical, a little higher than wide, when extended, but nearly flat when contracted. Dish. Slightly concave ; the margin entire. Tentacles. Thirty or upward.s, arranged in aboirt three rows ; the inner ones longest (about twice the diameter of the disk in length) ; diminish- ing regularly outwards, the outei-most row being rather short. The inner ones jre usually carried more or less erect, the outer arching downwards. Mouth. Set on a small cone. . Colour. 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 assirme 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, aud one-sixth in diameter of column ; expanse nearly half an inch. Locality. The coast of Northumberland. On old shells from deep-water. THE TRANSLUCENT ANEMONE. • 83 This species I know only by the descriptions and figures of Mr. Joshua Alder, who has kindly put into my hands, not only the published ‘‘ Catalogue of the Zoophytes of Isorthumberland and Durham,” in Avhich 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. Tlie name “ i^ellucida," originally applied to this little animal, having been preoccupied, Mr. Alder proposes that it should be called “ jyura.'^ 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 Fiisus anti- quus from deep wate].*, — nestling among the Serpulje 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 Actinia became expanded, that its presence was detected. A* specimen kept in a va.se 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. B. Ilowse has obtained it once or twice from the five-men boats, on the same coast. Ills specimens were slightly larger than INIr. Alder’s. sphyrodeta. PUEA. pellucida. ASTRjEACEA. SAGARTIAD^. 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. Dish. Flat; the margin entire. Outline circulai’, 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 hears two white lines, — one parallel and close to each edge, but separated from its neighbour by a fine line of the ground colour : 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. Mouth. 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. Size. The largest I have seen is half an inch in height, by about one-thii’d of an inch in diameter 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 Muller, 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 TENTACLE {viewed end%vise and frontwise). 86 SAGAIiTIAD^. and sea-Aveeds;” but added no other information to tlie description of Muller, which he quoted in the original Latin. An expression in this, Avhich had puzzled me not a little, became graphically descriptiA'e when I saw the living animal. Muller says that the tentacles “ seem com- posed of an eye furnished with exceedingly slender rings croAvded together,” — a comparison which at first seems little applicable to such organs. But, in fact, they are frequently contracted into A^ery Ioav cones or Avarts ; Avhen, vicAved from aboA^e, they present the appearance of a number of fine rings surrounding the central point, very much like the eye-spots in a butterfly’s AAdng. (See left- hand figure aboA’e.) 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, tAVO or three more liaA^e 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 generatiA^e process. The most minute displays its circle of tiny tentacles. The outline of the base is exceedingly A^arlable : it projects in ragged promontories and rounded points, Avhich continually, though sloAvly, change their form and relatiA'e proportions. From some of these, minute fragments sepa- rate, Avhich 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 Avith our vicluata. The sinuous outline on which he relied rather indicates a condition than a species. Thoiigh the short conical form of the tentacles is charac- 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 jjhrase congeneres’’ notwithstanding), but by the extension and contraction of the base. Ireland, E. F. : Caithness, C. W. P. : Cornwall, C. W. P. miniata. venusta. COCCINEA. viduata. ASTRjEACEA. SAGARTIAD.E. THE CAYE-DWELLING ANEMONE. Sagartia troglodytes. Plate I. fig. 3 : II. 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. Nat. Hist. iii. 48. Couch, Com. Fauna j iii. 75 (nec Muller). viesemhryanthemum, var. Johnston, Brit. Zooph. Ed. i. 211. troglodytes. ? elegans. ? explorator. Sagartia troglodytes. aurora. Scolanihus sphcerotdes. Johnston (after Price), Brit. Zooph. Ed. 2. 216. fig. 47. Cocks, Rep. Cornw. Polyt. Soc. 1851. 6. pi. i. fig. 16. Daltell, Anim. of Scotl. 226 ; pi. xlvii. fig. 9. Ibid. Ibid. 227 ; pi. xlvi. fig. 11. Gosse, Linn. Trans, xxi. 274 : Tenby, 365 : Manual Mar. Zool. i. 28 : Annals, N. H. Ser. 3. i. 416. Ibid. Ann. N. H. Ser. 2. xiv. 280 : Tenby, 356 (Frontispiece). 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 tentaculate. BisTc. 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 diflSerent varieties. Mouth. Generally elevated on a cone. THE CAVE-DWELLING ANEMONE. 89 Acontla. Long and very slender. Emitted reluctantly, and only on great irritation. Colour. Column. Olive, of a greener or browner tint in different 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 compared 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 K-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. TROGLODYTES (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 SAGAllTIAD.E. Locality. The coasts of England and Scotland. Hollows in rocks between tide- marks. Varieties. * With chai’acteristic marks on disk and tentacles. а. Scolopacina. The condition above described. (Tenby: Torquay.) Plate II. Jiff. 5. /3. Ilypoxantha. Disk and tentacles pinkish drab: the latter strongly barred, with the B indistinct ; each tentacle full orange. (F. H. West in litt.) 7. Badifrons. Disk ground-colour pale umber-broivn : tentacles wholly pellucid grey. (F. H. West in litt.) 5. Alhicornis Disk, ground-colour French-grey ; tentacles wholly ojiaque white. (F. H. W. in litt.) ** With characteristic marks on tentacles only. б. Niffrifrons. Column greenish drab, duskier towards the summit. Disk uniform blackish-grey ; summits of mouth-angles oi-ange-cream- colour. Tentacles pellucid, for the most part marked with an undehned long patch of opaque orange-cream-colour on the lowest third of the front; above this three remote spots of opaque white on the front face. The j3 distinct when searched foi*, but nearly mei-ged in the dark hue of the disk. (Morecambe Bay.) Fulvicornis. Column drab, blackish at the summit. Disk dull umber; each radius with an undefined centre of black in the exterior half; the interior third wholly drab, separated by black lines. Lip narrow, orange. Tentacles short, remarkably blunt; numerous, in five rows ; uniform oxiaque xiale orange ; the 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.) rj. Pallidicornis. Column dull gi'ey, blackish above, becoming dull rusty immediately at the summit. Disk dull sex^ia-bi'own ; the radii sepa- rated by slender black lines : xn'iniary radii with a central white spot broadly margined with black. Tentacles short, very blunt, set in five full rows ; oiiaque dull cream-white, the front with a line of faint orange, and a broad ill-defined strix^e of blackish down each side; each tipped with a round dark spot. The U separated into its constituent halves, by a dividing line of whitish. (Morecambe Bay.) Plate I. Jiff. 3. 6. Aurora. Agrees with a in column and disk, and in the form and comparative fewness of the tentacles ; but the colour of these organs is brilliant orange, with the B rather ill-defined. (Tenby : Torquay ) Plate 111. Jiffs. 1, 2. THE CAVE-DWELLING ANEMONE. 91 I. Jiuhicunda. Agrees with o in disk and tentacles (ncixrly) ; but ground- colour of tentacles rose-red : column dull buff. (Torquay.) K. Lilacina. Column greyisb-drab with faint longitucbnal 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 sti'onglj'-defined black IJ. (Boulogne.) A. Melanoleuca. 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, and have the B thick and strongly marked. (Morecambe Bay ; Boulogne.) Plate V. fy. 5. ft. Prasina. Disk and tentacles transparent crown-glass-green ; primai’y radii with a white spot, secondary with a white line. Lqi white. (Firth of Forth ? Dr. T. S. Wright in litt.) *** Without characteristic marks on disk or tentacles. (Column drab.) V. Flavicoma. Disk grey-buff, more positive on the lip ; tentacles warm orange-buff; remarkably short, blunt, and stiffly 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.) o. Luna. Disk warm orange, with the central fourth white. Tentacles elongated, opaque white, with an unbroken line of pellueid white running down each side. (Boulogne. F. H. W. in litt.) TT. Xox. Disk and tentacles blaek : the latter much attenuated, with an unbroken line of grey running down each side. (Boulogne. F. H. W. in litt.) p. Eclipsis. Disk black. Tentacles opaque brilliant orange. (Morecambe Bay. F. H. W. in litt.) (T. Npethamera. As p in every respect, except that the black of the disk ends abruptly at half-radius, the central portion being light grey. (More- cambe Bay. F. H. W. in litt.) T. Hesperus. Wholly pure white ; gradually acquiring colour in a con- finement of some months. (Lundy. W. Brodrick in litt.) V. Nolilis. Disk deep violet-blue. Tentacles rich orange. (Cheshire Coast. Lady Oust in litt.) From the 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 me 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 diffienlty 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. ya, v, o, or merged in the abnormal spread of the dark hue of the disk, as in vars. tt, p, c, 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, from 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 retiremept. ]\Ir. Price well characterised it, when he proposed for it the name of troglodytes (“ cave-dweller,” from rpco^Xy, a cavern, and 8vvco, 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 tlie shallow pools that floor the largest of the caves at St. Catherine’s, Tenby, the vars. scolopacina 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 injui-ed 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 column ; 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; from 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 which the water stands. Several of the varieties have been found at ]\Iorecambe 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 of crassicornis, and of course the commonmesemhryantliemum. Several kinds of EoUs, as coronata, papillosa, Drummondi, and pellucida, are found here : — Sal^ellce in abundance ; and Sertularice, 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 troglodytes, including the orange-disked, present themselves through the sand, much elongated, — the point of attachment being 94 SAGAETIAD^li. sometimes three or four inches below the surface. They are all equally sensitive, shrinking on the slightest alarm.” Mr. Hohlsworth 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 sphceroides.^ “ 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 has suggested the specific name of sijhceroides. 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 habitat, 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 Vv’hencc these were obtained.” My friend was subsequently convinced that lie had been misled by the appearance of the specimens : lie 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. ; Mar, 1S55. THE CAVE-DWELLING ANEMONE. 95 contraction and approximation of the column around tlic retracted base ; and we proved its power of basal adhesion in the speeimen which came into my possession ; for it not only attaehed itself by the entire broad base to the saucer — and that repeatedly after having been removed — but during 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, which was readily removed, bringing away all the dirt, and leaving a clean smooth Sagartia. The tentacle-feet displayed the B-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 the base contracted to one-sixth of an inch in diameter, and became very buoyant. It thus strongly reminded me of Mr. Iloldswor th ’ s sph CBro '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 sown 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 are in this species very adhesive ; and in this vagabond condition it is not rare for the Anemone to moor itself temporarily, not by the base, but by these 96 SAGAKTIAD^. 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 Holothuria. Some observed facts indicate a considerable tenacity of life in this species. On the 5th of October last ]\[r. 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 meek (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 hors 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 som-ce 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 ’writing 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 Corynactis 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 the 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 II 98 SAGARTIADiE. the tentacles, especially those which 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 tlie 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. Byerly, however, has succeeded in rearing the young of this species ; hut 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 he plainly seen through the skin at the hase. These made their exit through “ breaches of continuity in the outer envelope near its junction with the hasal disk, and some- times through ragged apertures in the hase itself.” Tlie 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 perfeet 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 from 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 com-se 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. 185.5. 11 2 100 SAGAETIADiE. 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 yoint d'ajjpui. This was the first time I had ever seen the sper- 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- colom’ed 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 measiwed 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 reddisli-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, which 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 SAGAKTIADJi:. to select and abridge. This lady finds troglodytes abund- ant on the Fife coast, in several varieties. Of these she specially enumerates lilacina, of which eight specimens have from time to time occurred ; Hesperus, two specimens, and a third well-marked variety. One of the var. Hesperus has been in Miss Gloag’s possession fifteen months : “ the disk and tentacles are, if possible, whiter 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. (j). Pyromela. Some of my lady -readers may be glad to avail themselves of Miss Gloag’s experience in collecting. ‘‘ I find no diffi- culty in digging the troglodytes out of the rocks or mud. The instruments I use are long, thick hair-pins [of iron- wire, i\th of an ineh thiek]. 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. Kobertson has sent me from Cumbrae an exquisite variety, of which I was at first inclined to make a distinct species. It has the charac- THE CAVE-DWELLING ANEMONE. 103 teristic marks of troglodytes^ however, on disk and tentacles. Column marked with longitudinal green bands on a pellucid olive groimd. Tentacles very short and conical, pellucid, with three transverse white bars, and three longitudinal streaks of fine 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 Prasmopicta. 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 SAGARTIAD^. 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 speeies that have come to my knowledge : — Wick, C. W. P. : Moray Frith, A. Robertson: Coast of Fife, [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, C. K. ; E. C. Holwell : Seaford, E. W. H. H. : Selsey, G. G. : Weymouth, W. Thompson: Teignmouth, R. C. J.: Torquay, P. ff. G.: Falmouth, W, P. C.: Ilfra- combe, G. T. : Tenby, P. H. G. : St. Bride’s Bay, H, Given : 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. C. : Cumbrae, P. R. : Belfast, E. P. W. coccinea. TROGLODYTES. viduata. ASTR^ACEA. SAOARTIADjE THE SNAKE-LOCKED ANEMONE. Sagartia viduoia. Plate III. fig. 3 ; VI. fig. 11. Specific Character. Tentacles veiy extensile, very flexuous, indistinctly barred ; marked with an uninterrupted dark line down each side. Actinia vidnata. ? undata, anguicoma. ? lacerata. Jsacmcea viduata. Sagartia viduata. Muller, Zool. Dan. Prod. 231. No. 2799. Zool. Dan. ii. 31 ; pi. Ixiii. figs. 6 — 8. Ibid. Zool. Dan. ii. 30 ; pi. Ixiii. figs. 4, 5. Price in Johnst. Brit. Zooph. 2nd Ed. p. 218 ; fig. 48. Gosse, Devon. Coast, 96 ; pi. i. figs. 9, 10. Daltell, Rem. Anim. Sootl. 228 ; pi. xlvii. figs. 12—17. Ehrenberg, Corall. 34. 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 corrugated in contraction ; with distinct suckers on the upper half. Subsstance fleshy. Form cylindrical; capable of great elongation, in the shape of a tall and slender pillar. Margin tentaculate. Dish. Flat; the margin plane. Outline circular. Radii distinct; crossed by fine stria). Tentacles. About two hundred, arranged in five rows ; of which the first and second contain each twelve, the third twenty-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 eone. 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. 106 SAGAKTIADiK. Colour. Column. Ground tint a light buff, sometimes merging into a warm fawn, or wood-brown, at others into a flesh-hue, or even pale scarlet. This is marked with longitudinal bands of paler hue, sometimes almost white ; the bands being equal to the interspaces. As these bands approach the base they become more defined, and the contrast between the alternate dark and light hues is beautifully distinct, especially as they are separated by slender jagged lines of very dark brown. The whole upper parts are freckled with numerous brown dots ; and the suckers are generally inclosed each in a little olive blotch. Dish. Ground tint a dull whitish-grey, covered with a regular speckled pattern, formed of the following elements. At the point where each tentacle springs from the disk, the radius is marked by a long dash of deep brown, or blackish, at each edge; the intervening space between the dashes is occupied by a transverse band of pellucid greyish-brown ; two other similar bands cross the radius at equal distances, but without the bounding dashes. As the markings of the secondary radii do not coincide in posi- tion with those of the primary, the result is the minutely chequered or dotted pattern above spoken of. Go- nidial radii often opaque white. Tentacles. Translucent grey, marked on each side with a line of dark brown running through the whole length. Occasionally a very faint ring of pel- lucid white surrounds the tentacle near its middle, and a second just above its foot : the lateral lines are lightened at these places, but their continuity is not interrupted. They end abruptly just above the junction with the disk. Mouth. Greyish white ; with darker [right side). furrows. Size. Average specimens in the button state are about five-eighths of an inch in height, and the same in width of column ; the base covering an area of nearly an inch in diameter. Such a specimen in ordinary expansion would spread an inch and a half from tip to tip of the tentacles. But specimens an inch and a quarter in height and width in the button are not rarely met with. Locality. It is widely scattered over the European coasts. Where found it is generally common, adhering to rocks and loose stones, between tide-marks; • • PIRATE rn COLOURS BY biCKSS 1 2 8 4 5 I 2 SACARTIA TROGLODYTES. 4 5 3 S . VI DUATA 6 7 . 8 ADAMSIA PALLIATA S PALLIDA 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 a. Aleurops,* — the mealy-faced condition above described, — is Melanops 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 w'hole 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 are 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 sti'ipes 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, the 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 wliich I have described above, with Mr. Price’s anguicoma ; though that gentleman has not noticed tlie characteristic tentacle-lines. Its re- • ’'kXfupov, meal ; the face. + M€\as, black ; coij/, the face. 108 SAGARTIAD^. markable power of elongation in the dark, alluded to by him, I have often noticed. The finest specimen I have ever seen used to stretch up at night in the form of a perpendicular column, five inches in height, with a thickness of about two-thirds of an inch ; from the summit of which the numerous slender tentacles, arching outward on all sides, and extended to extreme tenuity and translucency, gave to the whole animal somewhat of the appearance of an elegant palm-tree. This form I have endeavoured to imitate in Plate III. fig. 3 ; though the engraver has not succeeded in conveying an adequate idea of the shadowy character of the tentacles, which look like a thin light blue cloud when seen against a dark background. The more ordinary appearance I have given in Plate VI. fig. 11. But as little doubt exists in my mind that the species is the viduata of the “ Zoologia Danica.” I have before me at this moment specimens, which answer almost preeisely to Muller’s description, even in such minute characters as the number of the white bands (twenty-six in mine, “ viginti-quatuor ” in his); the dark brown speck, with a white dot in its centre — “ puncto pertuso ” — at the summit of each main band; the slender evanescent line between the bands — “ inter has strigas alia tenuior et pallidior ;” the longitudinal dark lines of the tentacles — “ lineola duplici longitudinal! obscurd ;” and even the minute depression in the middle of each tentacle at its foot — “ foveola versus basin all these points I trace readily ; and while they do honour to the preeision of the great Danish zoologist, they abundantly prove the identity of om* species with his. AVhether his undata is not a variety of the same, I am not sure. The Actinia lacerata of Dalyell I also incline to identify with the present, — from what he says of the colour, the length, form, and contour of the tentacles, the card-like. THE SNAKE-LOCKED ANEMONE. 109 al)ject flatness of tlie body in contraction, and the elonga- tion at night.* The name viduata (“ widowed ”) probably alluded to the white and black lines, which seem to have been remarkably contrasted in Muller’s specimen. Mr. Price’s name — anguicoma (“ snake-locked ”) — is far more suggestive and significant ; and I regret that the law of priority forbids me to adopt it. Mr. Holdsworth has found some curious anomalies in the tentacles of a specimen in his possession. He first observed that all these organs assumed a nodulous appear- ance, being abruptly thickened into knobs at regular inter- vals in their length. The phenomenon disappeared and reciuTed several times, sometimes lasting two or three days. About a fortnight after my friend had favoured me with a record of this fact, he wrote me again as follows : — “ The viduata that had the knobbed arms has taken a new freak, and not being content with a normal number of tentacles, must needs throw out branches from some of them. I inclose a sketch of the most conspicuous.” From the drawing it appeared, that while some of these organs were but slightly notched at the tip, others were divided nearly half-way down, the branches diverging in various degrees ; ■while one bifurcate tentacle had one of its branches cleft. A similar phenomenon has occurred to my own observation in Aiptasia, and in Anthea. It is by no means common for either viduata or troglodytes to emit the filaments, which I call acontia, from the loop- holes of the column ; but I have "witnessed the fact on several occasions. From the mouth they are protruded much more readily. In both species they are crowded with long oval cnidee about .002 inch in lengtli, and * Rem. Anim. of Scotland, p. 228. 110 SAGARTIAD^. under ; which discharge an ecthorceum about one and a half times the length of the cnida, and densely bearded. Of the increase of this species I have no information, unless the lacerata of Sir J. Dalyell be truly identical with it. He observed that this increases by spontaneous sepa- rations of portions of its base. The outline becomes irregu- larly sinuous, and the prominences gradually (in the course of a week or two) become pinched off, maintaining their connexion only by a very slender lengthened filament, not in contact with the glass, hut free above it. Rupture of the connecting thread at length takes place, and the independent fragment ^develops itself into a young Anemone. The laceration of the outline of the parent was always very irregular and ragged. Above seventy were thus produced in a year from a single adult.* Sir John Dalyell could never detect any embryo or germ inclosed in the portion of margin about to be separated : and the careful experiments of Dr. T. S. Wright appear conclusively to negative that hypothesis which would thus explain the mode of increase by fission of the base. From an attached individual of Actinoloha dianthus, Dr. Wright cut a minute piece of the base, having first ascertained, by careful examination of the part, which was perfectly trans- parent, that no ovum or germ existed there. The part immediately receded from the parent, and in three weeks had become a perfect Anemone, with long tentacles. From this small one he cut two other minute slips, which also assumed the perfect condition ; and from the base of the original adult fourteen other slips yielded the same results. From these experiments it appears that all that is essential to the process is tlie existence of a portion of each of the tliree elementary tissues of the animal — the tegumentary. * Op. cit. p. 228. THE SNAKE-LOCKED ANEMONE. Ill the muscular, and the epithelial or ciliated lining-membrane of the cavity.* S. viduata is hardy in an aquarium, and needs no special care or peculiar treatment. It expands principally diu-ing the hom-s of darkness ; a shaded angle suits it best. The following are the British localities in lyhich it has been recognised : — Felixstowe, 3Iiss M. E. Guille: Dover (rare), E. L. W.: Guernsey, E. W. II. H. ; Bournemouth, Eev. J. Guille- mard: Torquay (abundant), P. II. G. : Dartmouth, E. W. II. 11. : Falmouth, W. P. C.: Ilfracombe, P. //. G.: Tenby, P. H. G. : Menai Strait, J. P/ (abundant) TF. A. L. : Puffin Island, E. L. TF. .• Mouth of the Dee, F. II. TF. .* Dublin Bay, J. B. Greene ; E. P. TF. .* Belfast Lough, TF. T.: Lahinch (Co. Clare), E. F. troglodytes. bellis. VIDUATA. [impatiens.] coccinea. parasitiea. A. amacha. A. cereus. Edin. Phil. Journal, for 1856. ASTRjEACEA. SAOARTIAD^. THE PARASITIC ANEMONE. Sagartia 'parasitica. Plate II. fig. 6. Specific Character. Large, pillar-like ; skin coriaceous ; tentacles in seven rows, marked with a many-broken line down each side. Actinia effoeta. Rapp, Polyp, 54 ; pi. ii. fig. 2 (An Linnsei?). parasitica. Couch, Zooph. Cornw. 34 ; Corn. Fauna, iii. 80 ; pi. XV. figs. 1,2. JoHNST. Brit. Zooph. Ed. 2. 228, pi. xli. Cocks, Rep. Cornw. Pol. Soc. 1851, 8, pi. ii. fig. 11. Gosse, Aquarium, 144, pi. iv. Tuowell, Manual, pi. vi. Sagartia parasitica. Gosse, Tr. Linn. Soc. xxi. 274; Ann. N. H. Ser. 3. i. 416. GENERAL DESCRIPTION. Form. Base. Adherent, generally to shells. Little exceeding the column. Column. Minutely corrugated on the upper parts, but studded on the lower half with numerous warts, mostly small, but a few among the rest large and prominent. No apparent suckers. Substance firm, somewhat coriaceous. Form, that of a thick pillar ; the height twice or thrice as great as the diameter ; plump and rounded. Margin forming a slightly thickened rim, minutely notched, scarcely rising above the level of the disk, and obliterated when the disk is fully expanded. Disk. Nearly flat, or slightly concave ; the margin somewhat mem- branous, wider than the column, which it overarches; occasionally it is thrown into puckered undulations, but only to a small extent. R^dii not prominent. Tentacles. Five hundred or upwards ; arranged in about seven rows, of which the first contains about twenty, the second twenty-four, the third forty-eight, the fourth ninety-six ; those of the other rows are too numerous and too closely set to be enumerated. The first row springs from the disk at about half-radius, — that is, midway between the lips and the margin they occasionally stand erect, but more frequently arch outwards in elegant overhanging curves. When distended, those of the first row are often an inch in length, and one-eighth of an inch in thickness : the others diminish in regular gradation, until those of the margin do not exceed a line in length. Their form varies in different individuals, and perhaps at THE PAKASITIC ANEMONE. 113 difiFerent times, sometimes being blunt and nearly cylindrical, at others tapering to a fine point. Mouth. The centre of the disk gradually swells into a stout low cone, in the centre of which is the mouth, edged with a thick furrowed lip. Acontia. White, long, and as thick as sewing-cotton ; projected on the slightest irritation, and in the most copious profusion, both from the mouth and from the loop-holes of the column. Colour. Column. Ground-colour, a dh’ty white or drab; often slightly tinged with pale yellow ; longitudinal bands of dark wood-brown, reddish- or purplish-brown, run down the body, sometimes very regularly, and set so closely as to leave the intermediate bands of ground-colour much narrower than themselves : at other times these bands are narrower, more separated, or broken into chains of dark spots. Immediately around the base the bands usually sub-divide, and are varied by a single series of upright oblong spots of rich yellow, which are commonly margined with a deeper brown than that of the bands. The whole column is surrounded by close-set faint transverse lines of pale hue, sometimes scarcely di.stinguishable, except near the summit, where they cut the bands in such a manner as to form, with other similar lines which there run lengthwise, a reticulated pattern. Dish. Pellucid yellowish-white, often tinged wuth faint purple about the half-radial region, and marked with a circle of six squarish patches of opaque white. Tentacles. Pellucid, faintly tinged with flesh-colour, cream- yellow, or purplish; each marked with a dark purplish or bro^vn line down each side, which is broken into about five dashes. The sub-marginal rows, which from their minuteness may be compared to a fringe, are frequently divided into alter- nate patches of colour ; — a patch of pale tentacles, then one of purplish, — six groups of each colour completing the circle. These alteraations do not conceal the lateral lines of the ten- tacles ; and though sometimes beautifully distinct, they are at tentacle others scarcely perceptible. The pale patches correspond to (front). the square spots of white on the disk. Mouth. Opaque white, or cream -white. Size. It frequently attains a height of four inches, with a diameter of two and a half in column, and three and a half in flower. Locality. The shores of the British Channel, the Mediterranean and Red Seas ; in the coralline zone. For the most part adhering to such shells as are inhabited by the Soldier-crab. I 114 SAGARTIAD^. Varieties. Though subject to considerable diversity in colouring, I am scarcely able to select any pattern sufficiently distinct, or sufficiently stable to wari’ant its registration as a named variety, I have above defined the limits within which, so far as my experience goes, the divergence extends ; it seems mainly to consist in the relative proportions and arrangements of the dark and light bands of the columns. One mentioned to me by Dr. Hilton, of Guernsey, as having been found by him at Herm, seems more worthy than any other of being considered as a distinct variety. It “had a very light coloured body, and was beautifully marked with lilac spots.” Perhaps I may venture to call it Amethystina. I have seen a specimen at Torquay, in which the stripes of the column were dark crimson. The keen eye and scientific zeal of old Ellis failed to discover this species, notwithstanding its large size and commanding appearance. Common as it is in some locali- ties, it seems, however, to he quite unknown along the eastern coasts of great Britain and Ireland, whence Ellis’s zoophytic treasures were principally gathered. It was left for Mr. R. Q. Couch, of Penzance, to indicate it as a British species, though it had long heen known in the Adriatic and Mediterranean seas.* I have found it exceedingly abundant in Weymouth Bay, — extending from the deep water of the offing even into the narrow harbour, — but have never heard of its being found within tide-marks, except in the instance of the var. amethystina, above mentioned, which was found attached to a stone at low-water mark. It is, as its name imports, normally parasitic in its habits ; though not so strictly but that wc frequently dredge specimens adhering to stones ; and in captivity it is by no means uncommon for an individual to detach itself from its native site and adhere to the bottom of the vessel, or even to crawl up the perpendicular side. Generally, however, it is found seated * With Dr. Johnston I utterly and indignantly reject Linnaeus’s specific names in the Actinoida, and with reluctance even cite them. THE PARASITIC ANEMONE. 115 on some univalve shell, which is tenanted by a Soldier-crab; young specimens on Turritella terehra, Trochus magus, T. zizipliinus, &c. ; but adults, which are much more frequently met with than the young, almost invariably on the great Whelk {Buccinum undatum). The dredge, indeed, often brings up shells invested by this Anemone, which are empty ; but I believe that in every such case the shell has recently been vacated by the Soldier, and that the Sagartia never voluntarily selects either an empty shell, or one tenanted by the living Mollusk, for his residence. My friend. Dr. E. Percival Wright of Dublin, has favoured me with a humorous sketch of the ways of this loving pair, — Crab and Zoophyte, Arcades ambo, — which bears on the matter before us. “ The following scene,” he observes, “ was witnessed by my much lamented friend Dr. R. Ball. One of the specimens referred to, attached to the shell of a Buccinum undatum, which had from its appearance been, in all probability, just deserted by a Pagurus, was placed in a glass aquarium : in a short time the Anemone left the Buccinum, and attached itself to the side of the tank ; it next deserted this position and fixed itself on the side of a large stone that filled the centime part of the aquarium. After the lapse of some weeks, a Hermit Crab was dropped into the tank (I think Pag. hernhardus). Well, if these Hermits can’t live without hiding themselves in the deserted shell of some poor Mol- lusk, I think it is equally true that they can’t live happy until they hide both themselves and their shells in some quiet little hole in the rock -work of our aquaria, from whence they can look out; and, thinking that the super- imposed stone-work adds vastly to the strength of their fortifications, experience sundry intense feelings of safety. Be this as it may, the Hermit in question was not long ere he walked up to a little grotto that was in the rock-work I 2 116 SAGARTIAD^. of tlie aquarium (quite close to tlie Sag. parasitica) ; and after a sliglit survey to see tliat all was right, he turned his left slioulder forward and ‘ backed in : ’ then he began to whisk his antenna3 and foot-jaws in a dreadful manner, and looked evidently quite content. I suppose this was a state of things the parasite perched on the rock above had long been waiting for ; for it was not long in moving its disk over the top of the small whelk ; and before the Crab knew where he was, tlie big Sagartia had pitched his tent on the roof of the Hermit’s house. Where the Hermit Crab goes, there goes the Sagartia; a quiet life it led before; a restless one it has to lead now. But doubtless it knows what’s best for it.” The crab who sustains the honourable office of porter to this species is invariably the brawny-limbed Paguriis hern- liardus, as P. Prideauxii is favoured with the support of Adamsia palUata. In the rude and blundering manner in which the bearer performs his office, it cannot be but that the poor Anemone sustains many a hard knock and many a rough squeeze among the rocks and stones over whicli his servant travels ; but he appears to bear these mis- chances with great philosophy : I know of no species which lives so constantly exposed. A rude shock will, indeed, cause it to withdraw its tentacles, and contract its disk into that button-like shape which is common to the tribe ; but this is only for a moment ; it instantly expands again, and remains full blown in spite of all its draggings hither and thither. Its skin is peculiarly tough and leathery ; a provision, doubtless, against the accidents to which its vagrant life exposes it. Mr. R. Q. Couch says that the favourite site for this Anemone (in the neighbourhood of Penzance?) is on the claw of the Corwich Crab {Maia squinado). Mr. Cocks, however, says tliat in the neighboiu'hood of Falmouth it is THE TAKASITIC ANEMONE. 117 never found on this Crab, nor on Pinna ingens, but fre- quently on Pecten maximns, as well as on Buccinum xm- datuni, and on stones.* I do not remember myself to have ever seen it on a bivalve. We have no species of Sea- Anemone which, to such an extent as this, shoots forth those filaments which I have called acontia, and which are undoubted weapons of offence. On being rudely handled, or otherwise alarmed, from vari- ous points of the body, particularly from the larger warts, the loop-holes {cinclides) give issue to these threads, which exactly resemble in appearance white sewing-cotton. They arc often shot forth with force to the length of four or even six inches ; and under circumstances of great irritation an immense bundle of such threads is projected from the mouth. Their interior end remains, however, attached to the cavity wdience they issued, and they are soon withdrawn again. JMost species of Anemones give out a rank penetrating odoiu*, but it is more than usually offensive in S. parasitica. It is communicated to the fingers on handling the animal ; and repeated washings with soap, and even scrubbings with a brush, scarcely avail to remove it. It is insufferably nauseous. S. parasitica, like its congeners, is by turns oviparous and viviparous. To the former mode of increase ]\Ir. G. H. Lewes bears witness. “ In the water of a pan con- taining, among other animals, specimens of Actinia para- sitica, I twice noticed abundance of light-purple ova floating at the surface. Some, of these were placed in a vase by themselves, and others left in the pan; but no further development took place. One day, dissecting a, parasitica, I found in its ovaries these very purple ova which had attracted my attention,”! ]\Ir. Lewes doubts, however, that it is viviparous. This point has been settled by my friend, j\Ir. F. 11. West, “ A * Johnston, Br. Zoo25h. 228. f Sea-side Studies, 141. 118 SAGAETIADiE. specimen,” he writes, “ which I received in December from Weymouth, produced a young one on the 1st of JMarch following ; it was most beautifully and distinctly marked, and as dark-coloured as the parent, which was of the dark reddish-brown variety. It was a pretty little creature, and lived for five or six weeks, when I lost sight of it.” Mr. Holdsworth also has met with the young of this species, not more than a line in height, yet distinctly marked like the adult. As a proof of the tenacity of life of Anemones under the privation of sea-water, provided the skin be preserved from becoming dry by evaporation, I may mention the following fact, which is valuable as bearing on the trans- mission of these animals from distant localities. I inclosed two large specimens of S. parasitica, two of T. crassicornis, and one of A. dianthus, in a large jar, containing one or two tufts of Chondrus crispus, but no water. The jar was closed with a bung, but was not air-tight. The Anemones remained thus imprisoned for ten days, wallowing in their mucus and discharged water, which from time to time I poured off. At the end of that time they were quite well, and I restored them to the aquarium. Might not the species fi-om North America, or those from the Mediter- ranean, be transmitted to us thus inclosed ? I should add that the experiment was performed in December. The following are the known British habitats of this species. Guernsey, Herm, J. D. H.: Jersey, O. H. Leioes: Weymoutli, P. H. G. : Teignmouth, R, C. J. : Torquay, P. IL G. : Falmouth, W. P. G. : Penzance, R. Q. Couch : Bantry Bay, E. P. If" viduata. y bcllis. PARASITICA. A. palliata. B. coronata. ASTUTE ACE A. SAGARTIAD.E. THE GOLD-SPANGLED ANEMONE. Sagartia (?) chrysospJenium. Plate VI. fiy. 8. Specific Character. Column green, with lines of golden-yellow dots : tentacles pellucid, with green bars. Actinia chrysosplenium. Cocks, Rep. Cornw. Polyt. Soc. 1851, 5; pi. i. fig. 17. Johnston, Brit. Zooph. Ed. 2, 214 ; pi. xxxvii. figs. 1 — 3. Sayartia (?) chrysosplenium. Gosse, Annals N. H. Ser. 3. i. 416. GEXERAL 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 ti-ansparent 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. Under-surfaces of 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 diseoverer, who in one of his MS. notes has added the words, — “ allied to crassicornisy On the other hand, the marginal line around the base, and the gonidial tubereles being distinguished by a different colour from the rest of the animal, while agreeing inter se, suggest Actinia, of whieh these peculiarities are characteristic. There is, too, a well-known variety of A. mesemhryan- thenium, whieh is green, marked with lines of yellow dots, and of this circumstance I ventured to remind Mr. Cocks. Ilis reply was as follows : “ In the A. mesemhr. var. the stripes and spots are as in cJirysosplenium, but several shades lighter, and the labial tubercles, as well as the edging of the base, are bright blue ; the tentacles arc uniformly of one colour, and are much more numerous, slender, and tapering.” The character of the surface, however, decidedly separates it from both the Actiniadoe and Bunodidee. ]\Iy friend had at first written, — “ Suctoreals numerous, scattered, embedded ;” but he afterwards added the following particulars : — “ When I examined the body of the cJirysosplenium with a lens of two inches’ focus, the surface appeared to be pierced or punctured, and in appearanee resembled a piece of smooth India-rubber when pierced with a pin ; not the slightest trace of tubercles apparent. Tlic body when contracted TIIK GOLD-SPANGLED ANEMONE. 121 was as smootli as before ; not papillatecl ; and the apertures were nearly obliterated.” Until I have an opportunity of personal examination, T therefore assign to the speeies a place in the genus Sagartia ; but I consider that it is one of the links which connect this with the neighbouring 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 zoophytologists 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. ciirysosplenium. crassicornis. ? 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, which cannot, however, be properly considered as higher than sub-genera, the charac- ters by whicli they are distinguished being too vague to afford 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 : — miniata, 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: — sphyrodeta, 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 spJiyrodeta 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 SAGAKTIADiE. 123 and to continue detached. In these last two particulars they approach the Ilyantkidce. 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 kvXiq), to wallow about. Beilis will probably be eonsidered 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 erowded arrange- ment of its tentaeles, the undulation of its margin, as well as the peeuliarities of its colouring, isolate it strongly from its fellows. Miniata, from tlie undulation of its margin, send, parasitica, from the eraterine form of its disk, and the multitude of its tentacles, are connecting links with it in their respective groups ; while bellis looks, as has been already intimated, towards other genera, as Actinoloba, Aiptasia, &c. It might be called Scyphia, from aKvj>oulsive and lumbering? Again, I might make new words — arbitrary aggregations of vowels and consonants, — “ Farson,” “ Toler,” — words, if words they might be called, without an etymology, and without a meaning. I do not think this would be generally acceptable, though I might plead precedent in scientific technology, — “ Rocinela,” “ Conilera,” &c. for example. A celebrated Greek orator is said to have coined only three words in the whole course of his professional eloquence ; and, for the comfort of those who should attempt the same again, it is added that the Athenian public refused to swallow these. Yet it is much easier to make a Greek word than an English one. I manuhicture “ Aiptasia ” an:l “Bolocera” boldly; yet it is not without mi.strust that I see “ Ti’umplet” and “ Opelet” on my pages. In this dilemma, since the words must be made, I have thought that they ought to be formed according to certain conditions. First, thej' should be Saxon : “ Ilyanth,” “ Lucemary,” “ Cyathine,” are no more English than if they retained their classical terminations. Secondly, they should be significant : the new word should aid the memory, not tax it. Thirdly, they should be consimilar in structure, since they are intended to designate consimilar objects. Fourthly, they .should not, if possible, exceed a dissyllabic length. According to these rules, I have ventured to construct a series of verna- cular names for the genera. Allowing “ Anemone ” to stand for Sagartia, I have formed for each of the others a dissyllable, Saxon in origin, sug- gestive of some prominent character, and ha'ving a common termination, — viz. the English diminutive “ -let,” from lit, little. In accordance with this plan. Plumelet may stand as the English repi’esentative of Actinoloha, and Cloaklet of Adamsia. THE WALLED CORKLET. 130 gular, clear granules, with some Alga-spores, Diatoms, and here and there a cnida. I removed, with a fine needle’s point and pliers, the epidermis piecemeal. It was tough, allowing the xVnemone and its hit of rock (as large as a filbert) to be lifted out of the water by it, without giving way. Its adhesion to the lower part of the column was very firm. As I removed the loose free tubular portion, (the animal having retreated far in at the earliest assaults,) I discovered free within its cavity about half-a-dozen cgg-like germs, of a rich deep orange colour; these, under the microscope, proved to be covered with vibratile cilia, by means of which the germ slowly swam. They were soft, ovate, '(Id inch long, by •025 wide. One, on being crushed, was resolved into a mass of minute round clear granules, — fat-corpuscles ? When the whole epiderm was removed, I detached the animal from its adhesion in a small hollow of the lime- stone ; not without the discharge of a thick mucus from the base, and the emission of a single acontium from the lower part of the column. The animal was now reduced to an abject flatness, and looked like a miniature S. viduata in its greatest contraction. In a day or two it attached itself to the rock again, and even crawled a little way. It now expanded freely, and looked just like an ordinary Sagartia ; but did not renew the epidermis. The only locality as yet known for the species has been already indicated: — Torquay, r.H. G. ? A. palliata. :\iueocincta. E. carnea. gausapata. picta. ASTRjEACEA. SAGARTIADjE. THE AYAETED COEKLET. Phellia gausapata. PL.VTE VII. fig. 1. Specific Character. Epidermis dense ; firmly adherent throughout ; wai’ted. Phellia gausapata. Gosse, Annals N. H. Ser. 3. ii. 194. GENERAL DESCRIPTION. Fokm. Base. Adhei’ent to rocks : scarcely exceeding column. Column. Cylindrical, pillar-like when expanded ; smooth in extension, but in contraction becoming coarsely corrugated, so as to present large irregularly rounded knobs or warts. To this a dense epidennis is firmly adherent throughout, having no free margin ; and, being modelled on it, it is covered with coarse warts or knobs ; “ resembling, when contracted, a straw bee-hive.” {C.W.P.) DisTc. A deep cup or funnel. Tentacles. Sixteen, arranged in two rows, eight in each : those of the first row twice as thick and long as those of the second, with which they alternate ; variable in form, sometimes being conical and pointed, at others short, rounded, and even slightly inflated at the tips. Mouth. Not raised on a cone : lip thickened “ as in dianthus." Acontia. Freely dischai-ged from the base ; long and veiy slender. Colour. Column. Exposed portion pellucid white, with sub-opaque whitish longi- tudinal streaks. Epidermis. Pale yellowish, with darker warts ; the separation of which in extension causes the general tint to appear lighter, and vice versd. Dish. (No note has been taken of its colours.) Tentacles. Pellucid drab, with the lower part and a broad .ring near the tip dark brown, undefined : pix)bably there is also an intermediate ring of paler brown. Size. Diameter of column half an inch ; height three-fourths of an inch. Locality. Rocks at low-water : extreme north-east of Scotland. THE WARTED CORKLET. 141 By a curious coincidence, on the very day that I disco- vered the preceding species, the post brought me a living specimen of the present, from Mr. C. W. Peach, of Wick ; and so the extreme north-east of Scotland and the south- west of England conspired, at the same moment, to augment our native Actinologia^ each with a species of a genus entirely new to scienee. The kindness of Mr. Peaeh had, it is true, sent me a specimen of the same animal before this, viz. in the preceding May ; but it had arrived dead, and in so advanced a stage of decomposition, that I had not been able even to form a conjecture of its characters. Observation of the species is even now very defective ; for though the last specimen sent arrived in health, and continued for upwards of a month to live in my possession, yet, during the whole of that period, I never saw it expand sufficiently to enable me to describe either its tentacles or disk. For the above description I am largely indebted to the notes and sketches of Mr. Peach. The distinction between PhelUa gausapata and P. muro- cincta is slight; and future observation may resolve the two species into one. The distance of their respective localities, however, renders their identity less probable. The specimens were obtained from very narrow fissures in a rock called Proudfoot, at the entrance of Wick Bay, in Caithness. This rock is accessible only at the low water of spring-tides. The first specimen obtained, which was much larger than the second, remained unattached for several days, while in Mr. Peach’s possession, but appeared healthy. The smaller one sent to me remained adherent to its original fragment of rock for more than a month ; at the end of which time I lifted the base from its attachment. It was in doing this that I saw the acontia copiously discharged from the offended base. 142 SAGARTIADiE. When received, several young algse, — one apparently a minute Laminaria, another a Rhodymenia ;palmata, — were growing from the upper margin of the epidermis ; a fact which is of value as showing the persistency of this investment, which, moreover, was not separated during the subsequent period of the animal’s captivity. The trivial name of this species I have formed from the yausape, or rough frieze coat which the Koman soldiers wore in cold weather. The only known locality for this Phellia is, as above stated, — AVick, C. W. P. ? GAUSAPATA. murocincta. picta. ASTB^ACEA. SAGARTIADjE. THE PAINTED CORKLET. Phellia ^icta. (Sp. nov.) Plate XII. fi[aci:a. [tuberculosa]. [bicolor]. thallia. ASTR.F.ACEA. liCNODID.E. THE GLAUCOUS PIMPLET. Bunodes tJudlia. Plate IV. Fujs. 5, 6. Specific Character. Warts sub- equal, vertically remote, unicolorous. Ihinodes thallia. Gosse, Annals N. H. Ser. 2, xiv. 283 : Tenby, 361 ; pi. xxiii. fig. c: Linn. Trans, xxi. 271. Annals N. H. Ser. 3, i. 417. Cereut Thalia. Milne Edwauds, Hist. Corail. 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 covered with numerous (about thirty -six) vertical rows of sub equal prominent warts, which arc separated, in moderate extension, both laterally and vertically, by interspaces 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. Disk. 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 primai7 and secondary radii, 0 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 ; rock.s within tide-marks. Varieties. a. llygroxyla. The green condition described above. 0. 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 a ; the central half sometimes white. I first discovered this species at Lidstep, on tlie 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. Tliough 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 the 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 group.^, mutually pressing each other’s sides. The habits of the Glaucous Pimplet in captivity are THE GLAUCOUS TIMPLET. 197 closely like those of the Gem. Like the latter, it expands under the stimulus of the light, rather than in darkness, indicating a habitually exposed mode of life. Like gem- viacea, 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 fragments to the body, like S. hellis and T. crassicornis, but in taking hold of a firm support, like S. troglodytes. Tlie 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 “ ” (not TJialia, as M. Milne Edwards misquotes it) I adopted in allusion to the elon- gated form and glaucous colour, from daWla, 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 snecimens, 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. TIIALLIA. [xanthogrammica]. [Artemisia]. T. crassicornis'. * Loudon’s Mag. N. H. ix. 303 ; fig. 49. ASTR^ACEA. BUNODIDJi. THE RED-SPECKED PBIPLET. Bunocles JBallii. Plate IV. Fir/. 4. Specific Character. Warts sub-equal, vertically contiguous, red-spotted. Actinia Ballii. clavata. B anodes clavata. Cereus clavata. Cocks, Rep. Com. Soc. 1849, 94 ; Ibid. 1851, 9 ; pi. ii. figs. 9, 17, 18. Thompson (w.), Zoologist, 1851, App. cxxvii. Gosse, 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. Gosse, Linn. Trans, xxi. 274. Ann. N. H. Ser. 3, i. 417. Milne Edwards, Hist. Corail. 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 pillar-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 iirimary 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. Dislc. 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 gemmacea, 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- sile : gonidial tubercles usually prominent, often inflated. Colour. Base. Red, sometimes rich crimson. THE RED-SrECKED 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. I>isk. Pellucid-grey, covered or dusted with opaque white specks, varying in size and shape, as if sprinkled with flour. Tentacles. Yeiy 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- times erimson or rose-pink ; but sometimes whitish or pale yellow. TENTACLE {lateral rieic). 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 feeding, /oar 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. liosea. The most lovely condition above described. fi. Dealbata. The roseate hue wanting; the tentacles cream white; in other respects as a. y. Funesta. Tentacles dark umber or wood-bro^vn, with little trans- lucency. Disk smoke-black. Both dusted with yellowish-white specks as usual. Column as o; but tinged with brown. Usually of large size. S. Livida. 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 chai-acteristic 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 akeady described and figured, under the title of A. the same 200 BUNODID.E. 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 own names,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 clubbing, 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 limk 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 sui-face 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 found on the coast of Norway, in 1843. t See ante, p. 75, THE KED-yPECKED PIMPLET. 201 concealed ; or a narrow crevice, as between two contiguous stones, into which it may thrust its body. The variety Iivida, which is not rare in Weymouth 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, which 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 /8 are veiy beautiful, especially the former. The variety 7 has not unfrequently beguiled me, on a hasty examination, into the notion that S. hellis 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. 11. G. : Falmouth, TF. P. C. thallia. Sag. bellis. Ballii. Aip. Couchii. [cruentata]. [Macloviana]. ASTR.^ACEA. BUNODIDJi. I THE DIADEM PIMPLET. Bunodes coronata. Plate VII. Fig. 4. Specific Character. Warts almost confined to ujiper half of column, in lines and irregularly scattered ; sub-equal, small. Bunodes coronata. Gosse, Annals N. H. Ser. 3, ii. 194. GENERAL DESCRIPTION. Form. Base. Adherent to shells, scarcely exceeding column. Column. Cylindrical in expansion, much higher than wide ; covered on the upper two-thirds with moderately numerous 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. AVhole 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. Dish. 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 springing at about three-quarter radius ; they are shorter than radius, diminishing outwardly, conical, sub-acute. Mouth, Large, protrusile : lip sharp : throat evertile, coarsely furrowed. Colour. Column. A rich orange, 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. Bisk. Red, varying from pellucid scarlet to a reddish ehocolate ; each mdius bearing a longitudinal central streak of white, which does not reach THE DIADEM TIMPLET. either tentacle or lip, and bounded by a very fine 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 three dim sub-opaque white bars, of which the middle one is most distinct ; near the base ai-e 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. Month. Lip whitish. Throat rich orange-scarlet ; the furrows darker than the ridges. SiZK. Diameter of column in button, one and a quarter inch ; height tsvo inches expanse of flower one inch. Locality. The south coast of Devon ; moderately deep water. Varieties. o. Patricia. The rich orange-scarlet condition ju.st described. fi. Plcheia. 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 lines by i^ellucid drab ; the whole intemipted by four or five bi’oad 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 twenty fathoms, in August, 1858. Three or four specimens came up in about the same number of liauls. In every case the animal was adherent to the shell of the living Turritella terehra, a mollusk 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 eight or ten adhering to a mass of oysters. 203 TENTACLE {front riete). 204 BUNOD1D.E. 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 that 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 S. parasitica, especially when in the act of unfolding. It has much resemblance to that species, as well as to 8. 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 Turritellce. 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 surround the margin. Berry Head, P. H. G. : Torbay, E. W. H. H. : off Teignmouth, G. II. King. Ballii. Sag. parasitica. CORONATA. Sag. coccinea. T. crassicornis. 205 GENUS III. TEALIA (Gosse). Actinia (Linn.). Cribrina (Eiikenb.). Cereiis^ (Milne Edwards). Banodes (Qosse). Base exceeding the column. Coliumi 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. Bisk 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 digitaia. Warts equal : stomach and warts grey ; tentacles banded . cramc X K* z < >- < f- < < H H < (/> O < 2 I 3 < I O < LJ H Q. CO ki I- J < lli a uj 0 I 1 (L ASTRJRACEA. ILYANTHIDAi. THE ARROW MUZZLKT. Peachia hastata. Plate VIII. Fig. 3. Specific character. Column lengthened ; conchula bearing from 12 to 20 lobes, which are mostly bifid ; tentacles marked with arrow-heads. Peachia hattata. Go.sse, Linn. Trans, xxi. 207, pi. xxviii. ; Man. Mar. Zool. i. 31, fig. 46 ; Ann. N. H. Ser. 3. i. 418. GENERAL DESCRIPTION. Form. Column. Club-, pear-, or spindle-shaped, or cylindrical, the same indi- vidual assuming all these forms ; lower extremity rounded, with a minute central orifice, distinct, but generally closed, and apparently furnished with a sphincter. Surface smooth, but covered with microscopically minute suckers, which have the power of strong adhesion to foreign bodies. Substance fleshy, becoming more membranous below, where, when in- flated, it resembles a blown bladder. Disk. Flat, but protrusile, as a low cone ; radii distinct. Tentacles. Twelve, in one circle, marginal; short, thick, and some- what flattened at the foot, tapering to a point ; generally carried hori- zontally expanded ; sometimes they are considerably lengthened and attenuated. Mouth. Prominent, with a pro- trusile cushion-like lip, deeply fur- rowed. Conchula. There is but one go- nidial groove, the edges of which are united, the suture marked by a depressed line, on each side of which the wall is plump. The apical edge of the tube rises into a con- spicuous organ (conchula), and is cut into papillary lobes, placed in single series, but generally so crowded as to overlap each other. Tliey are from 12 to 20 in number, but are not j>erfectly regular either in form or order. Most CONCHULA AND MODTH OF P. HASTATA (magnified). 236 ILYA NTH ID Ja. of them are bifid ; the back lobes have a temlency to be simple, except the central back one, which is large, and composed of two bifid ones united on a single stem ; this compound one is generally bent over as a protection to the orifice of the gonidial tube. The papillae resemble tentacles in that they are hollow, with thick walls, the internal surface of which is lined with brown pigment, deepening at the tips ; they are very moveable. Colour. Column. Pale red or flesh-colour, through which the edges of the septa appear as twelve white lines : the fore half of the column is fre- quently marked with irregular splashes of chocolate-brown, which are sometimes confluent. Disk. Pale red or bufif, each radius marked with two Vs of deep brown, one within the other, the points of which are outwards ; the point of the outer one meets the tentacle, and sends off a branch on each side, encompassing its foot. Tentacles. Pellucid, each marked on its front face with arrow-heads of deep brown, arranged in two longitudinal rows, the points downwards ; there are about six in each row, but near the tip they become indistinct. Each arrow-head is separated from its successor by one of opaque cream colour or pale sulphur-yellow. Mouth. White, with the farrows deep brown. Conchida. Pale salmon-colour; the lobes pellucid, with an opaque white core, which is crossed by a brown bar neai' the tip. SiZK, About four inches in length, and one in greatest diameter. I have seen the body lengthened to eight inches, without any signal attenuation. Locality. Torbay, at extreme low water, and thence downward, buried in sand. In a paper read before the Linnean Soeiety on the 20tli of ]\[arch, 1855, I charaeterised this genus and species from specimens presented to me by the Eev. Charles Kingsley. I named it after Mr. Charles W. Peach, who Avas the discoverer of the first British Ilyanthidan known, Avhich I at that time referred to the same genus. In June, 1856, ]MM. Danielssen and Koren founded, on a speeies oceurring on the coast of NorAvay, their genus Siphon- actinia, Avhich is evidently identical Avlth this, though they appear to have mistaken the conchula for the mouth. THE ARROW MUZZLET. 237 The heavy easterly gales of last autumn, coinciding with the October spring tides, must have disturbed the Peachice iu their burrows ; for the species suddenly became common, as many as fifty having found their way into the possession of the Torquay dealers about that time. A few of these fell to my lot, and enabled me to correct and amplify the history of the species. These specimens were very lively, ever bending their columns, and rapidly changing their forms. While under examination, they frequently adhered by various points of the column, and when lying on the side would, gradually but quickly, bring the hinder extremity round, under the body, nearly to the front, and then applying it to the bottom of the vessel, adhere, not by the orifice, but by the swollen sm-face around it. Constrictions were constantly passing along, commencing about the middle of the column, and passing off down'svards, the effect of which was to throw out the translucent posterior extremity, like a clear dis- tended bladder, within which the septa could be very distinctly defined. One only of the specimens survived, the others I dis- sected. Tlie former I put into a vase of sea-water with a bottom of sand. This was at night ; in the morning it was just beginning to insert the hinder extremity into the sand, and thence the process of burrowing w'ent on regu- larly. In two hours it elevated the fore parts, and assumed a perpendicular position, continuing to descend.* By * Mr. Holdsworth, who obtained another of the Torquay specimens, has made an interesting observation on this process. " After it had selected a suitable place for burrowing, in the darkest part of the vase, the posterior extremity of the body became tapered to a fine point by a partial expulsion of the contained water, and at the same time turned downwards and pressed slightly into the ground ; the fluid contents of the animal were then forced back until the base was completely distended, and by thi.s means a shallow depression in the sand produced ; the tail then resumed its conical shape, was again thrust into the ground, and swelled out ; and these proceedings were continued until a hole was made sufficiently large to admit the animal. Its first efibrts in burrowing had but little effect. 238 ILYANTHIDiE. eleven A.M. only about an inch in length of the fore parts remained above the level of the sand, when it expanded, and seemed satisfied. At night, however, it came out of its burrow, and remained wallowing on the surface ; and for a week after this it continued to go in and out once or twice a day, grovelling and stretching awhile, and then burrowing comfortably almost to the tentacles. This individual still survives in the same vase, after six months’ captivity ; it frequently remains for days completely hidden, sometimes shows only the tips of the expanded tentacles, and rarely more than the disk, above the sand. It is perfectly domiciliated. Another of the individuals referred to gave birth, while under my observation, to some half-dozen or more embryos, of oblong or ovate form, which appeared like little Peachias, but I could not see any trace of disk or tentacles in any. They were discharged one by one through the gonidial tube, as the animal lay on its side. This one was ruptured in two places ; and as it lay in a small tank, the craspedal mesenteries were protruded, and spread in large irregular areas on the glass bottom, per- fectly flat and adherent, the membrane being pellucid and very delicate, and the craspedum bounding the outline like a white thread. The conchula is generally protruded, even wdien tlie tentacles and disk are wholly retracted. Perhaps it is the seat of some sensation. I. Mitchellii. Ilalcampa. hastata. Ceriantlius. tripliylla. uudata. and it was only after an hour’s labour, when the cavity liad become large enough to allow the polype to work in an upright position, and with the assistance of its whole weight, that rapid progress was made.” (Annals N. H. for Jan. 18.59, p. 78.) AST ACE A. ILYANTUlDJi. THE WAVED MUZZLET. Peachia undata. Plate VIII. Fig. 4. Specific Character. Column cylindrical, short ; conchula cut into five shallow lobes ; tentacles crossed by dark wavy bands. Peachia undata. Gosse, Annals N. H. Ser. 3. i. 418. GENERAL DESCRIPTION. Fokm. Column. Cylindrical, rounded below, slightly fluted, about twice as long as the diameter of the disk ; terminating below in a central perforate depression, around which the skin is much puckered, and minutely cor- rugated. Surface wrinkled, both transversely and longitudinally, espe- cially when contracted. Margin distinctly angular, sometimes forming a very low parapet. IRsk. Smooth, flat, or rising with an even and very gentle elevation from the foot of the tentacles to the edge of the mouth ; marked with twelve radii forming so many fine lines. Tentacles. Twelve, in one circle, marginal ; thick and rounded at foot, tapering regularly to the tip, which is obtusely pointed ; transverse section sub-ovate, the diameter from side to side exceeding that from back to front. By irregular contraction, they sometimes become slender and cylindrical, often with the tip clubbed or knobbed. They are generally carried widely expanded horizontally, with the tips arching downwards, like a twelve-rayed star. Mouth. Descends abruptly from the disk with a sharp angle, but which can scarcely be called a lip, as it is not thickened. It is protrusile at the will of the animal, when ordinarily it embraces the exserted gonidial groove, and displays a number of plicae at its edge. Conchula. The groove is greatly de- veloped ; its edges are in contact until about one-sixth of an inch from the tip, where they separate, and turn over with a scroll-like expansion, the margin of which is cut into five shallow teeth, as follows : — one terminal and two CONCHULA OF P. UNDATA {magnified). 240 ILYANTHID.E. lateral, all of which are bluntly triangulai’, or sub-square, two others still further removed from the terminal one, which are rounded and merge into the smooth descending edges. The mouth is sometimes widely re- tracted, and the groove exposed for the gi-eater part of its length ; but usually the conchula only is protruded from the almost closed mouth. Colour. Column. Very pale yellow, marked with irregular longitudinal splashes and stripef5, of dull red, more or less confluent at the lower extremity. Margin pellucid, with alternating spots of 02>aque white. Dish. Creamy white : each radius marked with a minute brown speck at the foot of each tentacle ; except that radius which is opposite (not correspondent) to the gonidial groove, in which the speck is wanting. Tentacles. White, crossed by seven waved bands of deep brown, each band strong and well defined at its upper edge, but ill defined and fainter at its lower edge : the fourth band (the central one) is broader and fainter than the rest. The lowest two bands are rather of a deep bluish-black. On the tentacle which corresponds to the groove, the lowest two bands are wanting, as are the lowest three on the tentacle opposite, leaving the face of this part of the tentacle pure white. The bands in all cases extend only across the front face and sides, disappearing on the back. Mouth. Whole interior of throat and stomach, and exterior of the lower parts of the groove, a rich red bufif or salmon-colour. Conch ula. Both without and within pure cream white. Size. Length about an inch and a quarter ; diameter of disk about seven- eighths of an inch ; expanded flower an inch and three-quarters ; thickness of column one inch. Locality. The Channel Islands. The only individual of this species that I have seen was one which I owed to the kindness of my friend Dr. Hilton, of Guernsey, who obtained it on the island of Herm, lying- on the sand at very low water, in April, 1858. When it arrived, after just thirty-six hours’ confinement, it looked much exhausted, and lay flaccid, with the mouth very widely gaping, displaying the thickly folded stomach, of a salmon-huff’ hue, and the gonidial tube greatly exposed and protruded. The tentacles were collapsed. When put THE WAVED MUZZLET. 241 into sea- water, no immediate change appeared, but after an hour or two the tentacles began slowly to move one by one backward and forward, and slightly to swell and to lengthen, while the mouth partly contracted. Next morning it had quite reeovered health and beauty. The tentacles were very versatile, constantly changing their form. The mouth also was perpetually opening or closing, but slowly. The animal appears unable to enclose the disk, but the tentacles contract individually, when touched, or spon- taneously, shortening to mere warts. I have seen the animal when several of its tentacles could scarcely be distinguished from the general level of the disk-edge, except by the coloured rings. It would lie rolling about on the sand in a vase, with constrictions successively passing up its body, and throwing off clear mucus. When put into a hole in the sand it would not remain ; being very buoyant, it was soon on the surface, the hole gradually filling beneath it. It remained in health for a few days, at which period the mouth gaped widely, and the lax corrugated stomach was exposed ; the tentacles contracted to warts, and, the animal being manifestly feeble and dying, I dissected it. !Mr. Whitchurch, of Guernsey, reports having found a Peachia, which he supposes to be this species, on re- peated occasions; it may, however, have been the following, lie mentions the interesting fact that the tentacles are luminous. The Siphonacttnia (= PeaeJna) Boeclcit has so close a resemblance to this species, that I am not certain whether my specific appellation will not have to be merged in that of the Norwegian zoologists. I rely, however, on the figure in Faun. Litt. Norv., ii., in which the lobes of the conchula are distinctly three in number, and arc square in R 242 TLYANTHID^. form. The manner in which the mouth is represented as pm'sed out, and closely investing the gonidial tube, with the gular furrows looking like rudimentary tentacles, I have observed both in this and the foregoing species. P. Boeckii is assigned to a depth of 80 to 200 fathoms in the fjords of Norway. The posterior orifice in this genus cannot always be observed; I have, however, satisfactorily demonstrated it by dissection in both hastata and undata. When the inte- gument is cut away from the whole vicinity, it appears as a circular foramen, about half a line in diameter. It does not appear to be an anus, but probably admits water for respiration. The specific name, undata, indicates the waved pattern of colouring on the tentacles. The term Muzzlet, which I have assigned to the genus, alludes to its most prominent characteristic, — the protrusion of the gonidial tube, like a proboscis or muzzle. hastata. triphylla. UNDATA. ASTRJiACEA. JLYANTHID.K. THE TREFOIL MUZZLET. Peachia t7't2)hylla. (Sp. nov.) Plate X. Fig. 2. Specific Character. Column pear-shaped, moderately long; conchula bearing three ovate or leaf-like lobes ; tentacles marked with arrow-heads, and based with brown. GENERAL DESCRIPTION. Form. Column. Pear-shaped ; lower extremity rounded, with a distinct central orifice, around which the skin is puckered. Surface covered with fine and close-set transverse wrinkles, and with minute suckers, which have a strong adhesive power. Dish. Flat, but very protrusile ; radii distinct. Tentacles. Twelve, in one circle, marginal ; thick at foot, and tapering to a point. Moxith. About one-fourth of an inch wide at the margin, shelving downward funnel-like ; lip rugose and erectile. Conchula. Cut into three ovate, leaf-like lobes. CONCHULA AND MOUTH OP P. TRIPHYLLA {magnified). Colour. Column. Opaque pale reddish-brown, or bay, with numerous irregular longitudinal splashes of rich red-brown. No pale lines indicate the septa. R 2 244 ILYANTHID.E. DisTc. Reddish buff; each radius marked with a minute brown speck in its centre : the gonidiat radius, however, and the opposite one, are pure white, without spots. Tentacles. Pellucid, each marked with a double row of brown arrow- heads, exactly as P. hastata, but the foot is crossed by a hand of deep brown, the discal edge of which is perfectly defined ; the confluence of these bands forms a broad circle of brown bounding the disk. In the gonidial tentacle, however, and in the opposite one, the band is wanting, as well as the lower arrows, the opaque white of the radius running up the front of each of these tentacles half-way to the tip. Mouth, Dark brown. Conchula, Pure opaque white ; the lobes without spot or core. Size. Length three inches; greatest diameter one inch and a half. Disk three-quarters ; tentacles about one inch, j Locality. The Channel Islands. I have had no opportunity of seeing the animal to whieh the above deseription applies. It "was taken at Guemsey, in December, 1858, and came into the possession of Dr, G. C. Wallich, who has kindly drawn out for my use copious notes, and furnished me with beautiful coloured drawings. It appears intermediate between hastata and undata, the species already recognised ; but I cannot'satis- factorily assign it to either, as it differs from both in the form and number of the conchular lobes. I have there- fore given it a name expressive of these peculiarities. “ The suctorial processes,” remarks Dr. Wallich, “ ap- pear to consist of simple depressions of the integument, each of which exhibits an oblong muscular body at its base, whereby a vacuum may be formed, and adhesion accordingly secured. On examining these muscular bodies under a power of 250 diameters, longitudinal as well as transverse strim are distinguished. Tlie nature of these .suckers was strikingly manifest on attempting to turn the animal in the glass, when tliey exhibited the appearance of THE TREFOIL MUZZLET. 245 a number of pointed papillae, the apices of which clung forcibly to the glass, whenever a strain was put upon the creature to disengage it.” hastata. TRIPHYLLA. undata. Peachia ctlindeica (Reid), In the Annals of N. H. for January, 1848, Dr. Reid described and figured, under the name of Actinia cylindrical an Actinoid, which was washed ashore at St. Andrews. It must have certainly been a Peachia, and may possibly have been an immature P. hastata. The points in which it disagreed with such specimens of the latter as I have seen were the following: — 1. It was but one and a quarter inch long. 2. The conchular lobes were twelve, six of which were very minute ; triangular, orange, with trans- lucent edges. 3. Twelve bands of faint reddish-brown radiated across the disk. 246 GENUS III. ElALCAMPA (Gosse). Actinia (Peach). Peachia (Gosse). Column long, slender, c}dindrical, or swollen at the inferior extremity, which appears to be imper- forate : no distinct margin. Surface without loop- holes, but studded with minute suckers. Dish flat. Radii distinct. Te?ifacles of one kind, few (less than twenty), marginal or sub-marginal, cylindrical, obtuse; per- fectly retractile. Mouth simple. No obvious gonidial development. ANALYSIS OF BRITISH SPECIES. Tentacles 12, banded ; lives in sand chrysanthellum. Tentacles 16, white ; lives in eroded rocks .... microps. ASTR^ACEA. ILYANTIIIDjE. THE SA^^D PINTLET. Halcampa chrysanthellum. Plate VII. Pigs. 9, 10. Specific Character. Tentacles twelve, in one row, as long as the diameter of the column, banded. Actinia chrysanthellum. Peach, in Johnston’s Brit. Zooph. Ed. 2, i. 220 ; pi. xxxvii. figs. 10 — 15. Cocks, Rep. Comw. Soc. 1851, 6 ; pi. i. figs. 20, 21. Peachia (?) chrysanthellum. Gosse, Linn. Trans, xxi. 271 ; Man. Mar. Zool. L 31. Halcampa chrysanthellum. Ibid. Annals N. H. Ser. 3. i. 418. GENERAL DESCRIPTION. Form. Column. Cylindrical, lengthened, worm-like (extending to ten times its diameter or more) ; slightly invected ; terminating below in a rounded extremity, which is generally distended into a bladder-like form and translucent thinness, and is incapable of being retracted ; merging above into the tentacles without a parapet. Surface studded with excessively numerous, minute, sucking warts. Disk. Plane. Radii twelve, distinct. halp-disk of u. CHRYSANTiiELi.D.M {magnified). Tentacles. Twelve, strictly marginal, set in a single row, their feet in contact. Nearly cylindrical, with rounded extremities, about as long as the general diameter of the column, usually carried pointing upwards and outwards, slightly arched ; perfectly retractile by the ordinary process of inversion. 248 ILYANTHIDiE. Mouth. A line without distinct lip ; not elevated on a cone. Furrowed within. Colour. Column. Drab or dirty white ; the septa distinct as white longitudinal lines ; the swollen bladder-like extremity translucent, and almost colorxr- less, except for the septa. DisTc. Mai'ked with a pretty star-like pattern, eonsisting of a pale blue area, inclosed in a pale line, and surrounded by twelve triangular rays of a dark brown hue; each triangle surmounted by a pale W-hke figure, which incloses a dark brown area, according to the accompanying pattern. Tentacles. Pellucid brown, the front crossed by six semi-rings of opaque white, of which the second, the fourth, and the fifth (counting from the foot upward) are angular, the second pointing downward, the fourth and fifth upward. The pellucid interspaces are tinged with brown, deepest on the first, second, and fourth ; and the first white ring, surrounding the foot, is sometimes tinged with sulphur-yellow. Mouth. Y'ello wish-white. Size. Specimens reach to an inch and three-quarters in length, and one-eighth of an inch in average diameter ; the extremity is frequently inflated to one-fourth. Localitv. Coast of Cornwall : buried in sand at low water, and in tide-pools. This is a very interesting little zoophyte, which was first made known by Mr. C. W. Peach, who has faithfully described its person and manners. Its lack of an expanded base of course removes it from the genus fa/ and when I formed the genus Peachia, it was under the sup- position that the present little species was to be therein included. Subsequent personal acquaintance with it, however, induced me to constitute a new genus for its reception, to which I have since added a second species. The name of this genus, Ilalcampa, formed from aX?, the sea, and Kafiirr,, a maggot, alludes to the grub-like form of the animal ; a form which I commemorate also in the English name, pintUt, from pintle, an iron pin. The THE SAND riNTLET. 249 specilic appellation must be accepted, I suppose, as ex- pressing the general resemblance of the painted disk to a flower. In May, 1858, by the kind courtesy of J. Scott, Esq. of Her Majesty’s Customs, I was favoured with two consign- ments of this pretty little species, ineluding upwards of a dozen specimens. They were procm-ed at Fowey, in Corn- wall. AVhen turned out of the package in which they had travelled, they looked like little earthworms. Some of them I dropped into holes which I had made with a stick in damp sand, carefully poming the sea-water in afterwards. These maintained their place, and soon protruded and expanded their disks from the surface of the sand. Others I simply laid on the sand when covered with water; these presently began to bore -with the in- ferior extremity, and soon descended as far as the level of the disks, which then expanded, as if at home. Several of those specimens I still possess in health, after about eleven months^ captivity; and I have reason to think that in the meantime they have produeed living young. After they had been domiciled for a time in a wineglass nearly filled with sand, and coveredjwith a shallow layer of water, I wished to remove them to a larger vase. On washing out the sand, I found the animals firmly adhering to the glass by the lower parts of their bodies. When removed, they would take instant hold of the smooth glass, with the suckers on any part of the body, four or five of these drawing out to a considerable length when force was applied. On examination of [these suckers, we see that the skin is covered with very minute and close-set, irre- gularly shaped, rounded warts, which have a firmly adhering function. They are best seen on the distended skin of the hinder extremity, where, under a power of 150 diameters, 250 ILYANTHID^. they prove to be granular nuclei in the substance of the skin, dense in the centre, and gradually thinning to an undefined circumference, elevating the surface with a smooth rounded outline to a height about equal to their diameter ; viz. about .002 inch. Many of them certainly have a shallow pit on the summit, and I am persuaded that their adhesion is a sucking. In the middle part of the body, these warts are elongated transversely, and have a ten- dency to run in close-set annular lines. I have not been able to satisfy myself of the character of the inferior extremity. It often appears as if it were distinctly perforate; but I believe this is an illusion, produced by the following phenomenon. As the animal lies on its side, it is continually being constringed, the constriction gradually moving downward till it passes off at the extremity. The parts above and below being in- flated, and being as transparent as glass, one sees, looking directly at the extremity, the inner edge of the constriction, through the transparent integument, exactly like a ter- minal orifice, at the moment before it passes off. The manners of the species are lively and pleasing: it is very susceptible of alarm, when it closes and disappears in its burrow with great quickness ; it is, however, soon full- blown again. Under irritation, as when fine clay is mixed^ with the water, the tips of the tentacles are jerked from side to side with a suddenness and force that contrast with the languor common to the tribe, and which seem to indicate both a higher nervous sensibility, and also a greater development of the muscular system. My experience, as well as that of Mr. Peach, shows that it is a species well adapted for an aquarium, and that no special treatment is needful beyond a layer of sand equal in depth to the length of the cohimn. Tlie stomach is sometimes protruded, and inflated so as THE SAND PINTLET. 251 to form an ovate bladder as wide as the diameter of the column. This occurs as well when comfortably ensconced and expanding, as when exhausted by lying out of water. Mr. Peach has favoured me with notes of a singular example of the reproduction of organs in this species. A specimen in his possession displayed a transverse cut, apparently the result of accident, which extending almost quite across the column just below the disk, caused the fore part to fall over, hanging only by a fragment of skin. The tentacles, which now of course drooped from the bottom of this hanging part, presently disappeared by absorption, while at the same time from each of the severed sm-faces a new disk with new tentacles was developed. Thus tlie old stump became pretty much as before, only slightly shorter, but the severed piece lost the tentacles at one end, and acquired new ones at the other. Halcampa chrysantJiellum has been found as yet only in Cornwall, but in the following spots : — Fowey, G. W.P. : Gwyllyn Vase, Pennance, &c., W.P.G. P. hastata. CHRYSANTHELLUM. microps. Edwardsia. AiiTR^ACEA. ILYANTHID^. THE EOCK PINTLET. llaJcampa microps, Plate YII. Fig. 11 : XII. Fig. 6 (magn.). iipecijic Character. Tentacles sixteen, in two rows, very short, without markings. Hulcainpa microps. Gosse, Annals Nat. Hist. Ser. 3. ii. 195. GENERAL DESCRIPTION. Fob.m. Column. Cylindrical; 8-invected, the tegumental insertions of the septa being the boundaries of the swellings ; hinder extremity inflatable, pro- trusile, adhesive ; skin minutely granular, enveloped in a thin mucus, which entangle.s foi-eign mattei's ; ordinarily covered avith minute, close- set, transverse wrinkles. Disk. The rounded .anterior extremity of the column, around which the tentacles are planted in two contiguous circles (though those of each row are remote inter se). Sometimes this rounded form is not observed, •and then the disk is flat. Tentacles. In two rows; the first of eight, about .014 inch long, and .0045 inchin medium di.ameter ; the second also of eight, marginal, remote, alternate with the former, pai)illiform, their length not exceeding their diameter, or .005 inch. When expanded, those of the first row either stand erect, or arch slightly outward : their movements are rather sudden ; their form quite cylindrical, with round ends; their walls thick, apparently imperforate ; a few cnidro scattered in their substance. Month. Elevated on a small abrupt papilko. CoLOUlt. Pellucid yellowish white, positive in the ratio of opacity of the parts without markings. Ovaries tinged with flesh-colour. Size. Column when moderately extended about .025 inch in diameter, to a point about halfway down its length ; diameter of posterior inflation at the same time .065 inch. Total length in this condition .3 inch. Locality. South Devon ; rocks between tide-marks. THE ROCK PINTLET. or:f> I found this tiny species in much eroded limestone from a cavern at Oddicombe, Devon, associated with Edwardsia carnea, in June, 1858. Having chiselled off many frag- ments of the rock, I put them into glass jars of sea-water ; and in a day or two found Halcampa microps crawling up the side of the jar, adhering by its inflated skin. In the course of a day or two more, another and another appeared, until five or six had come under my notice, most of them adhering to the glass. They were active and locomotive, moving along the surface with ease and comparative quickness (at least ten times their length in a night), adhering by any part of the hinder moiety of the column. Very frequently they threw the anterior portion suddenly round, like an irritated caterpillar ; and almost continually constrictions were passing down in succession from head to tail. They are very coy and very sensitive, retracting forcibly and suddenly when alarmed. I attempted to feed them, but only frightened them. The specific name is from /x/Acpo?, small, and the face. chrysanthellum. MICROPS. Edwards- ia. 254 GENUS IV. EDWARDSIA (Quatuefages). Scola7ith%is (Gosse). Column long, slender, cylindrical, divided into three distinct regions, of which the two terminal are retractile within the central one. Anterior region forming a short thick pillar {capitulum) of less diameter than the central, and more delicate. Central region {scapus) covered by a skin {epidermis) more or less thick and opaque. Posterior region {physd) thin, pellucid, inflatable like a bladder; imperforate (?). Bisk sometimes flat, sometimes conical. Tentacles of one kind, few (less than thirty), mar- ginal, arranged in one or two rows ; slender, mode- rately long, pointed ; perfectly retractile. Mouth simple. No obvious gonidial development. ANALYSIS OF BRITISH SPECIES. Tentacles sixteen, transversely dashed with white ; capitulum purple brown, with white markings ; lives in sand callimorpha. Tentacles twenty-eight, pellucid crimson ; capitulum pellucid carneous ; lives in eroded rocks .... carnea. ASTRJEACEA. ILYANTHIDAi. THE PAINTED PUFFLET. Edwardsia calUmorpha. Plate VII. Fig. 7. Specific Character. Tentacles sixteen, transversely dashed with white : capitulum chocolate-brown, painted with white. Scolanthus callimorphus. Gosse, Annals N. H. Ser. 2. xii. 157 ; pi. x. Edwardsia calUmorpha. Ibid. Linn. Trans, xxi. 271 : Man. Mar. Zool. i. 31 ; fig. 45 : Ann. N. H. Ser. 3. i. 418. GENERAL DESCRIPTION. Form. Column. Nearly cylindrical, slightly enlarging posteriorly, worm-like, the length in extension being to the diameter as 10 : 1. Capitulum a short pillar, slightly contracted above and below the middle, and most expanded at the margin ; marked with eight invections, each of which is divided towards the summit into two ; the surface smooth and delicate. Scapus opaque, leathery, rough and minutely corrugated. Physa (not observed). Disk. Plane ; radii distinct. Tentacles. Sixteen, marginal, set apparently in a single row, but yet slightly alternating, corresponding to the invections and semi-invections ; long (nearly thrice the diameter of the disk), slender, slightly tapering, obtusely pointed. They radiate horizontally or diagonally, and are fre- quently intro- or retro-verted. Mouth. Set on a prominent cone. Colour. Column. Capitulum rich chocolate-brown, irregularly dashed with white and black, each invection bearing a conspicuous lozenge-shaped spot of cream-white at its foot, and each semi-invection a triangular spot of white at the summit. These marks are well defined, and their effect is very beautiful. Scapus a deep orange-yellow, somewhat tarnished. Disk. White, marked with a star of pointed arches of deep sienna- brown, each arch having a radial stria for its centre, and a circle sur- rounding the mouth for its base. The two gonidial radii dark brown. 256 ILYANTHIDiE. Tentacles. Transparent and colourless, marked with spots and dashes of opaque white, ari’auged in in-egular transverse rows and rings, which increase in number and size until they become confluent towards the tips, which are thus pure white. The glassy translucency of the tentacles throws out these opaque markings with beautiful effect, especially as the foot of each is girded by a broad circle of white. SiZK. Column about three-quarters of an inch long when contracted, but extending to two and a half inches, with a diameter of one-fourth : disk one-fifth of an inch ; expanse of flower about one inch. Locality. The south-western coasts of England ; deep water. In the summer of 1853 I obtained, from about five fathoms in Weymouth Bay, a specimen of this species, which I described and figured in the Annals of Nat. Hist, under the name of Scolanthus, as I supposed it to be an unrecognised form. M. de Quatrefages had, liowever, pub- lished an able and elaborate Memoir* on a form Avhich he had named Edioardsia, in well-merited honour of the eminent French zoologist, M. Milne Edwards. On mature consideration, I was convinced that my Weymouth spe- cimen ought to be placed in this genus ; for though I had described a posterior orifice, which is wanting in Edwardsia, it is probable that I mistook, for such, the depression at which the phijsa, which I did not see, was retracted. The animal appears to be quite distinct from all of the three French species described by ]M. de Quatrefages, and to be well marked by its beautiful painting, which, resembling the inlayings of veneer-work, or the fignires of the kalei- doscope, suggested to me a name derived from /eaXo?, beau- tiful, and /jLopebr), form. The English term commemorates * Anualea lies Sci. Nat. 1842, Ser. 2, xviii. 65. THE PAINTED PUFFLET. 257 the habit of the genus, of puffing out the bladder-like termination of the column. The habit of the species, judging from what I have seen of it in captivity, is to buiTOw in fine gravel or sand at such a depth as allows it to protrude the coloured capitulum from the surface. Here it expands its tentacled disk for passing prey : I fed it with fragments of a shrimp, and found that it ate with the same avidity, and in exactly the same manner, as its cousins, the Sea- Anemones ; the tentacles catching and moving to and fro the morsel, and disposing its position and direction so as to facilitate the mouth’s grasping it ; this latter organ expanding its flexible lips to an apparently indefinite width, and gradually en- veloping the presented food. If rudely touched, the disk was suddenly withdrawn ; the capitulum^ and then the upper two-thirds of the scapus, disappearing in rapid succession by a process of intro- version, exactly like that by which the earthworm with- draws its fore parts, or, to use a homely simile, like the turaing of a stocking. The extent to which the intro- version proceeds depends on the degree of annoyance to which the animal has been subjected, or on its wayward will. It is capable of crawling along in its subterraneous abode, while contracted ; pushing aside the gravel with the front of its body. It proceeded in this way two or three inches in as many hours, while I was watching it, before it turned upwards and thrust out its head ; the evolution of the capitulum not beginning until the surface was reached. A second specimen of this species was dredged by the Rev. Charles Kingsley, off Brixham, in January, 1854. He informed me that the form and colours agreed with my description, except that the hues of the capitulum were more brilliant, and tho.se of the disk less so. “ lie broke off his tail in disgust two days ago, but has now thought a 258 ILYANTHID^. better of it, and has begun wisely to grow a new tail, which is at present transparent, hut with a well-defined orifice. He lies half-buried in sand, and lias several times temporarily attached himself by his new tail.”* Since this page was in type, Dr. Hilton has taken a specimen at Bordeaux Harbour, Guernsey, which he has kindly transmitted to me. In its general characters and markings, it agrees witli the specimen described above ; it is, however, much larger, being at least five inches long, and three-eighths in diameter. The scajyus is more spindle- shaped, and more coarsely invected and corrugated ; the fihysa I have seen inflated, but slightly. The tentacles which correspond to the gonidial radii, and the pair at right angles to these, are much shorter than the rest. The dark gonidial radii have a flush of rich green. Many points in the form and anatomy of this genus indicate, as has been ably shown by Quatrefages, a decided approach to the Echinodermata, through such forms as Syrinx and Sipunculus. Weymouth, P. H. G. : Brixham, C. K. : Guernsey, T. D. H. [Beautempsii.] Echinodeumata. callimorpha. [Harass!.] camea. H. chrysanthellura. * Kingsley in litt. ASTR^ACEA. ILTANTUIDJi. thp: crimson pufflet. Edwardsia carnea. Plate VII. Figs. 5, 6 : XII. Fig. 3 (magn.). Specific Character. Tentacles twenty-eight, pellucid crimson ; capitv.hm pellucid flesh-pink. Edicardsia camea. GossB, Annals N, H. Ser. 2. xviii. 219 ; pi. ix. figs. 1—4. Ibid. Ser. 3. i. 418. GENERAL DESCRIPTION. Form. Column. Generally cylindrical, sub-equal in diameter throughout, worm- like, length to diameter as 10 : 1. Capitulum cylindrical, or slightly barrel- shaped, marked with eight invections and eight semi-invections, like the preceding ; margin tentaculate. Scapus slightly more coriaceous than the other regions, but clothed with a very rough epidermis, so slightly adherent that it frequently forms a partially free tube. Physa thin, membranous, globose, transparent, revealing the septa ; imperforate. Disk. Plane ; radii distinct. Tentacles. Twenty-eight, sub-marginal, arranged in three rows, — &, 8, 12 = 28 (perhaps the ultimate number of the third row may be 16); vertatile in shape, being sometimes very short and fusiform, at others elongated to thrice the diameter of the disk, tapering and very slender. They generally radiate diagonally, arching outwards. Moiith. Set on a low cone; lip furrowed. Colour. Column. Capitulum translucent, delicately tinted with pink, each in- vection bounded by a fine line of opaque white or brilliant pale yellow, and marked with a longitudinal dash of the same near its foot. The stomach is plainly visible, as a thick axis of rich scarlet. Scapus and physa of the same rose-tinged translucency, but the epidermis of the former is of a brownish-yellow hue. Dish. A star of cream-white rays on a translucent ground. Tentacles. Lovely pellucid pink, sometimes with alternate bands of less s 2 260 ILTANTUID^. and more positive colour; frequently becoming a pale opaque yellow at foot, which hue runs up in a point on each aide. Mouth. Scarlet, leading to a stomach of the same rich hue. Size. Column, in extension, reaches to nearly an inch in length, with a general diameter of one-tenth ; capitulum one-sixth in length, one twenty-fourth in diameter ; expanse of flower one-fourth. Locality. The south-western coasts of England; eroded rocks. This beautiful and interesting little species was first made known by myself in the Annals of Nat. Hist, for September, 1856, from a specimen kindly forwarded to me by ^Miss Pinchard, who obtained it from the rocky islet called the Orestone, off Torquay. In May, 1858, three specimens were forwarded to me by my friend, Mr. F. H. Dyster, out of some hundred and fifty that were found by a collector on rocks, between tide- marks, near Tenby ; and a few weeks after this I was so fortunate as to discover a populous home of the species, in the neighbourhood of Torquay. On the south side of the promontory, called Petit Tor, on the coast of South Devon, there is a low-roofed cavern, whose orifice is left bare at the lowest water of spring-tides. The interior parts of the floor are covered with the common limestone shingle, and, being more elevated than the mouth, atford an opportunity of working within, whenever one can gain admittance. The roof and sides of this cave are Studded with the pretty little Crimson Pufflet, as well as with many other Anemones. The tide having receded, they arc very readily discovered by their crimson columns projecting an eighth of an inch from the dark floccose rock. The limestone is much eroded by Saxicavm ; and it is in the old burrows of these Mollusca that the Edicardsia THE CRIM80N PUFFLET. 261 dwells, clinging to the sides or bottom of the hole by the suckers on its skin, the column and disk now protruding, where formerly the siphons of the Mollusk projected. It has forcibly reminded me of Ossian’s beautiful image of the fox looking out of the window in the desolate dwelling of Moina. In captivity the animal is able to roam about the glass by means of its adhesive suckers. Under high magnification the epidermis is seen to be a film of condensed mucus, evidently composed of disin- tegrated cells, in which are entangled a few cnidce, some threads and many spores of Confervce, and multitudes of Diatomacece, of many species. I carefully removed piece- meal the whole epidermis from one, exposing the skin of the entire scapus, which then was seen to be fleshy, pel- lucid, pink, and in all respects like that of the terminal regions, except that it was slightly more dense. In a few days the scapus was again encased in an epidermic tube, thin and semi-transparent, but, instead of being yellowish or brown, it was quite grass-green. This I found to be owing to the entanglement of conferva-spores in the mucus, the water having been exposed for some days in a shallow saucer. After having been kept some days in stale water, the animal is found much contracted and retired to the middle part of the epidermic case. This may be then readily removed, the adhesion having ceased. The organic con- nexion between the epidermis and the scapus thus appears to be less in this species than in others of the genus, and approximates it to Phellia in the Sagartiadce. This pretty Pufflet is easily kept in the aquarium, but it appears to require a considerable volume of water in a state of purity. It sometimes floats at the surface, extended at full length. It will feed readily on minute atoms of raw 262 ILYANTHIDiE. meat, like the common Anemones. All its movements are rapid, sudden, and spasmodic. Torquay, P. II. G. : Tenby, F. D. Dyster. [Harassi.] Phellia. caknea. H. chrysanthellum. ? Edwabdsia Beautempsii (Quatref,). About the same time that Mr. Kingsley dredged E. cal- limorpha at Brixham, he found at Torquay, washed up after an easterly gale, an individual of the same genus, but manifestly distinct in species. While generally agreeing with E. callimorpha, in size and form, it differed in the following points : — 1 . The scapus was less opaque, more smooth and lubricous, and studded with longitudinal rows of minute warts between the invections. 2. The capituh/m was clavate, proportionally longer, and of the same colour as the scapus, a pale pinkish-buff, or light orange. 3. The tentacles were fourteen in number, slightly uncinate or incurved, banded with dark buff. 4. The disk was trans- parent and colourless, with a dark protruded mouth. From these characters I think it probable that the animal in question was referrible to the E. Beautempsn of M. do Quatrefages. 263 GENUS V. ARACHNACTIS (Sars). Column moderately long, cylindrical, rounded at the inferior extremity, but not swollen, imperforate. Surface capable of temporary adhesion, and therefore probably studded with minute suckers. Bisk ? Tentacles of two kinds, the one marginal, very long, slender ; the other gular, short ; few in each series, not retractile. Mouth, a simple slit. Habit: freely swimming in the sea. There is but one British species, A. albida. ASTRuEACEA. JLYANTUID.E. THE iSPKAWLET. Arachnactis alhida. Specific Character. Marginal tentacles longer than the column, gular tentacles about one-fourth of the length of the column. Arachnactis albida. Saks, Fauna Litt. Norveg. i. 28; pi. iv. tig. 1 — 6. Forbes and Goodsir, Trans. Koy. Soc. Edinb. xk. 310. GENERAL DESCRIPTION. Form. Column. Shortly cylindrical [pear-shaped, E. F.j, sub-globular in contraction, becoming gradually smaller and rounded at . the inferior extremity, where no orifice has been observed. Surface smooth [but with the power of adhering, at least by the inferior extremity (E. F.), which implies the existence of suckers]. Substance softly fleshy. Disk. [Undescribed.] Tentacles. Of two kinds. First series marginal, twelve to fourteen in number, filiform, tapering, very long, slender and pointed : of these eleven are about equal in length and thickness, while one or two are very much shorter and smaller, and un- equal inter sc. Some individuals show traces of the budding forth of another tentacle. These smaller and apparently sprouting tentacles always occur at that part of the circle which corresponds to one angle of the mouth. Second series springing immediately around the mouth-slit, eight to twelve in number [sixteen, E. F.], conical, pointed, scarcely one-tenth as long as those of the first series ; some smaller than the rest, and apparently budding, and these correspond in position with the budding ones of the first series. Mouth. A simple slit. Colour. Column. Pellucid whitish, displaying the dark brown stomach through its translucency [dusky white, tinged with tawny, E. F.]. Tentacles. First series whitish with dark brown tips [tawny and white, E. F.]. Second series dark brown on the front face. THE SPKAWLET. 265 Size. Length of column about one-third of an inch [one inch, E.F.] ; diameter one-eighth ; length of marginal tentacles one and a half inch [three or four inches, E. F.]. Locality. The Hebridean and Norwegian Seas. This very interesting form, the only British example of a natatory Anemone, has occurred on two occasions. Loth in the month of August, and both in the Minch, the strait that divides the Isle of Lewis from Scotland : — first by Dr. Balfour in 1841, who obtained a number of specimens, but all in a mutilated condition, and subsequently by Messrs. E. Forbes andGoodsir in 1850. In the interim, the Rev. Mr. Sars, of Bergen, had described and figured it in an elaborate memoir in the “ Fauna Littoralis Norvegioe” (1846) ; and it is from this that we derive our chief know- ledge of the species, Forbes’s account being exceedingly meagre. It appears in the vicinity of the Isle of I lorde, on the coast of Norway, in autumn and winter, swimming on the smooth sea, sometimes in dense shoals, sometimes singly, borne on the northward current. Comparing the periods of its occurrence in the Hebridean and Norwegian seas, we may infer that it comes up from the warmer parts of the Atlantic ; and it might be hopefully looked for on the west coasts of Ireland in the earlier summer. As it swims it carries the marginal tentacles horizontally spread, when it looks not unlike a long-legged spider : hence the generic name from apd^vr], a spider, and uktU, a ray, and hence also the English term I have assigned to it. The superior or the inferior extremity is indifferently carried uppermost. It swims by a languid undulation of the long 266 ILYANTHID^. tentacles ; but it has- a certain power of crawling also ; for these organs are strongly adhesive throughout, and the animal, attaching itself by these means to foreign bodies, slowly draws itself forward. The gular tentacles are usually projected, and clasped together, but sometimes they are horizontally spread. In the latter case, if touched, they are instantly drawn to- gether, and slightly contracted, but never retracted ; they have no adhesive power. The appearance and situation of these organs have suggested to my mind the thought that possibly they may be the lobes of a conchula, in which case the animal would be a swimming Peackia: if, however, tliey are true gular tentacles, then the alliance is obvious with the 'following genus Cerianthus. May it not possibly be the immature condition of this latter?* There are discrepancies in form and colour, and especially in size, between the specimens seen on om’ own coast, and those described by Mr. Sars, which make it possible that these may constitute two species. We trust other speci- mens may clear up this and other questions of interest. Forbes found a species of the same genus abundant in the Grecian Seas, but whether identical with this, we are not informed. The internal structure, which, from the transparency of tlie integuments is clearly seen, presents nothing peculiar. ? Peachia. Acalepha. albida. Anthea. ? Cerianthus. * See M. Haime’s observations on the free-swimming young of Cerian- thus, infra, p. 273. 207 GENUS VI. CERIANTHUS (Della Cuiaje). Tubularia (Gmelin). Moschata (Blainville). Edwardsia (Forbes). Column lengthened, cylindrical, swollen and bulb- like at the inferior extremity, which is perforated with a distinct orifice ; expanding trumpet - like at the margin, which merges into the tentacles,, without parapet or fosse. Surface smooth, without loop-holes, or (apparent) suckers. Usually enveloped in a loose, non-adherent tube, closed at the lower end, of tough, membranous texture, and ragged exterior. Dish wider than column, but not over-arching : funnel-shaped, with conspicuous radii. Tentacles of two kinds j the one marginal, the other gular ; both in perfect circles, those of each equal inter se, moderately numerous, slender ; absolutely incapable of retraction. There is but one British species as yet certainly assigned to this genus, C. Lloydii. ASTR^ACEA. ILYANTHIDJE. THE VESTLET. Cerianthus Lloydii. Plate VI. Fig. 8. Specific Character. Inferior orifice excentric : septa regularly graduated. % Edwardsia vestita. Gosse, Ann. N. H. Ser. 2. xviii. 73. Cerianthus membranaceue. Ibid. Ibid. Ser. 3. i. 418. Lloydii. Ibid. Ibid. Ser. 3. iii. 50. GENERAL DESCRIPTION. Fok.m. Column. Greatly lengthened, cylindrical for the most part, but gene- rally swollen at the inferior end into an elliptical bulb, and gradually expanding into a trumpet-shaped summit to about twice the median diameter. No distinct margin, the summit of the column itself dividing into the tentacles, the ridges of which are apparent for some distance below the point where they separate. Inferior extremity pierced with a round orifice, which is placed at one side of the axial line. Mesenteric prolongations of the visceral septa twenty-four, of which one pair are very minute, while the opposite pair extend to the immediate vicinity of the inferior orifice. From the one to the other of these conditions there is a regular gradation in length, but from the longest to the middle pair the diminution is slight, while from the middle pair to the shortest it is great and rapid. Disk. A deep funnel-shaped cavity, about twice as wide as the column, entire, circular, not overarching. Tentacles. Of two kinds. First series strictly marginal, sixty-four, set in two rows, alternating, but with their bases in mutual contact. They are equal, slender, conical, sharp-pointed, divided more or less conspicu- ously into knobs, by some half-dozen constrictions. Their contour is some- what stiff, and they are generally carried arching upward and outward ; but some of the inner row are frequently erect, and others inclined to a point over the disk. Second series remote from the first, crowded, in four irregular circles, springing immediately around the mouth ; filiform, obtuse, sub-equal, not half as long or thick as those of the fir.st series. THE VESTLET. 269 Colour. Mouth, A transverse slit ; lip minutely furrowed, not projecting. Investing Tube. Cylindrical, much wider than the animal, which is loosely invested by it without attachment in any part, papery or felty in texture, thick and soft, composed of many layers, the outer of which pre- sent ragged foliations. The tube can easily be detached, w’hen the ani- mal immediately begins to form a new one, by throwing off the material from the entire surface of the column ; this at first is adhesive, tena- cious, and very tough, pellucid, but gradually becomes milky, and finally opaque, entangling mud and sand in its substance. It is wholly composed of cnidce, the discharged ecthorcea of which, in in- calculable numbers and of great length, inter- twine and form a sort of felt. Column. Pale buff or whitish, gradually becom- ing rich chestnut brown at the summit. Disk. Pellucid white. Tentacles. First series maronne or chocolate-brown at the foot, above which pellucid whitish, with chestnut bands. Second series dark maronne. CERIANTHU8 without its tube. Size. Length seven inches, under strong irritation contracting to two; general diameter of column one-fourth of an inch ; of disk half an inch ; expanse of flower one inch and a half. 270 ILYANTHID^. Locality. The Menai Strait, in North Wales, and the Channel Islands; between tide-marks. Varieties. Specimens differ considerably in the depth and extent of the brown tints of the upper parts. In some the mai’onne or red-brown hue extends across the disk; in others it is scarcely discernible on the tentacles. The present species has generally been supposed to he identical with that of the Mediterranean, of which M. Jules Haime has given an elaborate memoir (Ann. d. Sci. Nat. Ser. 4, i. 341). But in that species the arrangement of the mesenteric septa, — which M. Milne Edwards (Hist. Nat. des Coralliaires, i. 308) gives as generic, differs so importantly from what obtains in ours, as to demand a revision of the generic characters. I have therefore con- stituted it a new species, naming it after Mr. W. Alford Lloyd, to whose intelligent enterprise the study of Actino- logy is so greatly indebted, and to whom we owe our acquaintance with this very animal. In the summer of 1856, this gentleman first obtained specimens from the Menai Strait, a fact which I noticed in the “ Annals N. H.” for July of that year, assigning the species to the Edwardsia vestita of E. Forbes. Mr. Lloyd also himself about the same time communicated two notes on the animal to the Zoologist,” in one of which he stated that he had then obtained eighteen specimens. Since that period he has procured many more, but, as I believe, only from the same locality. Some of these specimens he has courteously presented to me, and has thus enabled me to become personally familiar with the habits of the species. THE VESTLET. 271 The animal is hardy in the aquarium, bearing even tlie confinement of travel with more impunity than many commoner species. It is large and handsome, with a striking and noble aspect, and as it lives habitually expanded, and manifests considerable vivacity, it is a very desirable acquisition. The appearance of its felty tube is, however, repulsive ; but this I have found by no means essential to its comfort, and have managed to dispense with it, by the following device. Having prepared a glass tube of suit- able size, by cementing it perpendicularly to a stone of sufficient weight to maintain its stability in an upright position, I carefully removed the animaFs own case, and dropped the denuded body into the new lodging. The Cerianthus, in every instance, became immediately at home, presently lengthened itself, and expanded at the margin of its new abode ; and, as if the protection hereby afforded were sufficient, it threw off a new natural coat, only to such an extent as did not interfere with the sight of the body through the glass. Another advantage is secured by this treatment ; for whereas naturally the animal burrows in the mud, so that only the expanded flower is visible, and when put into a tank sprawls uncouthly along the bottom, the upright glass tube exposes the entire animal to observation, while it is protected from injury. I have specimens now which have been kept for many months in these circumstances, and are still in the highest condition. In handling the animal during the process of stripping off the coat, it contracts by sriong, sudden, and repeated jerks, at each becoming shorter. In these contractions the water in the visceral cavity is forcibly ejected from the terminal pore. This is not placed at the extreme point, which is marked by a depression, and by the convergence of lines, but is considerably excentric. I have also seen water 272 ILYANTHID^. ejected at intervals by the same orifice, when undisturbed, and that so forcibly as to hurl the floating atoms to the distance of two inches. I am pretty sure that I have also seen an inflowing current ; but this is more gradual, and therefore less conspicuous. The orifice must be considered as only a provision for respiration, and not as a tennination to the alimentary canal : the half-digested food is, as usual, discharged from the mouth. The Vestlet feeds freely in captivity, greedily accepting fragments of raw flesh, and also skilfully catering for itself. One evening I amused myself with observing it capture its prey. It was one of those mentioned above, set in an upright test-tube, in an old-established tank, close to the side. The water contained a large number of minute Entomostraca, which, when the candle was placed near the tank, flocked from all parts to the light. I thus was able to direct the migrant crowd to any point that I pleased ; and so brought them, when pretty well assembled, to the quarter which the expanded tentacles of the GeriantTius occupied. One and another were continually coming into contact with the tentacles ; and it was highly interesting to mark the unerring certainty with which each was an-ested the instant it touched a tentacle. No matter whether the foot, middle, or tip of the organ were touched, the little intruder inevitably adhered as if birdlimed, and apparently without a struggle ; when immediately, with the most beautiful ease and precision, the fortunate tentacle jerked inward, — all the rest remaining as they were, — and, deliver- ing the prey to the grasp of the gular tentacles, in a moment resumed its expectant position. So numerous was the giddy throng, that this manoeuvre was every moment in practice, with some or other of the tentacles ; so that scores, certainly, of the Water-fleas were captured while I was observing. THE VESTLET. 273 Mr. E. Edwards, of Menai Bridge, wlio has politely sent me a peculiarly fine specimen, has also favoured me with the following interesting note of tlie haunts and habits of the species. “ The only account I can give of the Cerianthus is, that I have found it in the Menai Straits in two distinct places, about five miles apart. “ The ground is a mixtime of stones, gravel, and mud. The disk (some of a light and some of a dark colour) when first seen is on a level with tlie surface of the ground, but on approaching instantly disappears into its sac. “ The operation of taking it is difficult, as on the least disturbing of the gTound it slips through the sac and is lost. The plan I adopt is to surround it with two or three spades, and each to act at the same moment, so as to undermine it in an instant, and press the ground, which causes its escape to be more difficult.” Mr. Holdsworth informs me that he found a specimen of this species * at the island of Herm, near Guernsey. “ It was close to low-water mark, buried among mud and stones, with a large piece of granite covering it. Not more than half an inch of the tube was exposed when the stone was removed ; and I found the rest winding about the irregularities of the ground in a most tortuous manner, turning sharp corners in its course downwards.” M. Ilaime {Op. cit.) furnishes us with some interesting details of the development of C. memhranaceus, which doubtless apply equally well to the present species. “ The young,” he observes, “which I obtained, all died in tlie course of a few days. I never found any young advanced, within the parent, as is so common with Actinice ; but the eggs, which float freely there, had already passed the first * It ia right, however, to observe that the distinction between this .species and C. memhranaceus was not then suspected. T 274 ILYANTHID^. period, and I had no opportunity of seeing their segmen- tation. All were strongly ciliated, and therefore were already larvae. They were oval in form, § millim. in length. One end becomes concave, the other conical. In the centre of the former an opening forms, through Avhich granules escape, and this becomes the mouth ; the escape of the granules leaving the visceral cavity. Soon around the mouth four minute tubercles bud, whicli become tentacles ; then two other tubercles nearer the mouth form lips ; meanwhile the body becomes smooth, and cylindro- conical. “ The young lived in this state ten or twelve days ; and attained one or one and a half millimetre in length. The body continued entirely ciliated, and was become very con- tractile. They swam freely in the manner of a Medusa. mouth downward, by means of elongations and shortenings of the trunk, and by openings and closings of the ten- tacles. Sometimes they would oscillate, or revolve on themselves.” Arachnactis. Lloydii. Cyathopliylliadje. [membranaceus.] I^Ckrianthus (?) VERMicuLARis (E. Forbes). Dr. Johnston, in liis “Brit. Zooph.” Ed. 2, p. 222; pi. xxxviii. figs. 2 — 5, has described and figured, on the authority of E. Forbes, under the name of Act. vermicu- laris, what seems either the young of the preceding- species, after it has become stationary, or else a near ally to it. It is described as “ OA long,” and the larger TUE VESTLET. 275 tentacles but what the integer is to which these fractions refer we are not informed. There is doubtless some error, as in the description these organs are called “ long ; ” and the figures, which are rude enough, are said to be “of the natural size,” and these represent the animal as inch in length, with the tentacles, both marginal and gular, about I of an inch. A slender cylindrical column, with a trumpet-shaped margin, a funnel-shaped disk, two kinds of tentacles, and a slit-like mouth, — this animal possesses in common with the Cerianthus. It is repre- sented, indeed, as standing erect, with the base attached in the manner of an Actinia ; but this was probably di'awn from assumption, and the attachment may have been similar to that which I have described in other Ilyanthidce, Professor Forbes says the base was “ not expanded,” which favours this supposition. No tube or case is alluded to, but it may be that this is developed only at a later period of life. The specimens were dredged in fifty fathoms in the Shetland Seas ; the column was greyish pink ; the disk and gular tentacles white ; the marginal tentacles fulvous. It gave out a vivid phosphorescent light when irritated in the dark. 276 TRIBE IL— CARYOPHYLLIACEA. • The large number of tentaeles in the polypes of this tribe allies them to the Astr^acea, and at the same time separates them from the Madreporacea and Antipa- » THACEA. Moreover, while the mode of increase in the compound species, by gemmation of the sides or base, removes them from the former, it affiliates them to the latter tribes. The majority of species deposit a corallum of lime, the calices of which are many-rayed. In compound species, the interstices between the corallites are not occupied by prolongations of the septal plates, but are granulous or porous, or sometimes faintly channeled. The stony plates {septa) are nearly or quite entire, rarely denticulate. Within the corallum the septa are connected laterally only by very distant dissepiments, if at all, never by series ot transverse plates. The stars, in a transverse section, are simple ; the chambers being rarely crossed by dissepi- ments : the calices are very commonly cylindrical, with narrow plates, arranged neatly around, and have often a broad bottom, generally porous and convex (Dana). The vast majority of Caryophylliacea are coralli- genous ; but this statement will not apply to those which belong to the British seas : for of the seventeen species presently to be described, seven are destitute of a corallum. So far as I am acquainted with them, the tentacles of our native species (with the exception of Zoanthus) differ from those of our Astr.(EACEA, in having the cnidce not lodged in the substance of the walls, but aggregated into masses wdiich form warts on the surface. Most of them have, moreover, these organs terminated with globose heads, destitute of cnidce, but studded with minute hairs (^palpocils). ANALYSIS OF THE BRITISH FAMILIES. Without a coralluvi. Simple Caimeadce. z/f Compound Zoanthidcc. With a corallum. Substance of corallum solid. Interseptal chambers free Turhinol'iadoc. 30'-! Interseptal chambers crossed by dissepiments . Cavity gradually filling up Oculinadce. Cavity permanently open Angiada. Substance of corallum porous Eupsammiadcc. 278 FAMILY I.— CAPNEADAE The members of this Family do not, at any period of their existence, so far as is known, deposit a corallum, or any trace of calcareous matter. They are, moreover, per- manently simple ; for though there is reason to believe that they increase by budding, the polypes so fonned quickly sever their connexion with the parent, and become inde- pendent though associated individuals. Thus they are essentially Anemones, such as we have already considered ; yet there is something in their aspect which at once betokens their affinity with the Corals. In particular, the tentacles have the singular structure and knobbed form ab-eady noticed as peculiar to this tribe : and, contrary to the universal rule in the Astrceacea, they increase in size outwardly, — the outer row containing the largest. The body, adherent by a broad base, is fleshy or pulpy, copiously lubricated with mucus, and sometimes separating the outer skin into a deciduous epidermis. The surface is not furnished with suckers, nor pierced with loopholes. There are no acontia, but the craspeda are numerous and large, and their contained cnidcB are remarkably developed. ANALYSIS OF THE GENERA. Tentacles truncate Tentacles crowned with bilobed heads Tentacles crowned with globose heads Capnea. A weliania, Corynactis. 27B GENUS I. CAPNEA (Forbes). Base expanded, swollen, adherent. Column cylindrical, pillar-like ; the margin forming a thick parapet, with a fosse. Surface smooth, without loopholes, invested with a woolly epidermis. Bisk circular, entire. Tentacles very short, truncate, retractile. But one species is known, C. sanguinea. CA R YOPH TLLIA CEA . CAPNEADjE. THE CROCK. Cdpnea sanguinea. Plate IX. Fig. 13. Specific Character. Body scarlet ; epidermis brown, 8-lobed. Kapnea sanguinea. Forbes, Ann. N. H. Ser 1. vii. 82 ; pi. i. fig. 1. Capnea sanguinea. Johnston, Brit. Zoopb. Ed. 2. i. 203 ; fig. 43. Cocks, Rep. Cornw. Soc. 1851, 1 ; pi. i. figs. 1, 2. GENERAL DESCRIPTION. Form. Base. Greatly expanded, irregularly inflated and lobe-like ; its outline irregularly undulate ; adherent. Column, Cylindrical, pillar-like, higher than broad j the margin form- ing, when fully expanded, a thick and prominent granulate parapet, or collar, with a deep fosse. Surface smooth, without loopholes, invested on the lower two-thirds with a woolly epidermis, the upper edge of which is regularly 8-lobed. Dish. Circular, entire. Tentacles. Extremely short, truncate, having the aspect of squared tubercles ; arranged in three rows of sixteen each, those of the outermost row the largest. Disk and tentacles perfectly retractile. Mouth. Round, slightly puckered. Colour. Column. Vivid vermilion, or dull brownish scarlet, with darker longitudinal stripes on the inflated basal portion. Epidermis bi’own. Disk, Yellowish flesh-colour. Tentacles. Orange-scarlet, paler than the column. Size. Height of column one inch ; diameter of disk one-fourth. THE CROCK. 281 Locality. Deep water, ofiF Isle of Man, on nullipore beds ; deep water, four leagues west of Falmouth, on a valve of Pecten mcucimus. The late E. Forbes first obtained this interesting form in August, 1840, and assigned to it its generic and specific names ; the former from Kdirvrj, a chimney, from its re- semblance to a chimney-crock, of which suggestion I have availed myself to make an English appellation. He tells us little of its history beyond what I have embodied above ; except that it is an active creature, changing its form often, but always presenting more or less of a tubular shape ; and that the upper part of the body can be retracted within the column as low as the commencement of the epidermis. Mr. W. P. Cocks has since obtained a second specimen. This was considerably smaller than Forbes’s, but agreed with it in essential points. Mr. Cocks has kindly put into my possession some notes of his specimen, which have enabled me to add a few details to Forbes’s diagnosis ; and also a colom’ed drawing made from the living animal, which I have copied in my Plate IX. Phellia. SANGUINEA. Aureliania. 282 GENUS II. AURELIANIA (Gosse). (Gen. nov.) Corynactis (Thompson). Base expanded, adherent. Column conico-cylindrical, low, the margin forming a thick parapet with a fosse. Surface smooth, without suckers or loopholes : invested with a deciduous epi- dermis. Substance firm and coriaceous, opaque. Bisk flat, entire ; radii distinct. Tentacles in several rows, very short, knobbed ; the heads more or less bilobate, and differing in form in the different rows ; perfectly retractile. Mouth slit-like, furrowed : stomach-wall protrusile. ANALYSIS OF BRITISH SPECIES. Base greatly expanded : crimson augusta. Base not exceeding column : yellow Tieterocera. I 5 !:f;R YN A- MS V I R I D ' S . BO rot; t R A F. Qi' . 5 A N T HU Ft ‘ II L ; U ; I ■ A I DERI . I- ■ / o A N ' H :i ; , : ■ I ■ H ■ I I ; AUR t I I A*n A All w: ; A M . A - HE I F iM): L R A I" ;AM-U-n 7 . 8 . C A R YOPH YLLIA CEA . CAPNEADJE THE CRIMSON IMPERIAL. Aureliania augusta. (Sp. nov.) Plate IX. Fig. 11. Specific Character. Column rising from a widely expanded base : crimson. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; greatly expanded ; the outline undulate. Column. A low, thick pillar, springing gradually from the broad base like the trunk of a tree; the margin forming a thick and prominent parapet, the inner edge of which is crenate ; and separated from the ten- tacles by a narrow and shallow fosse. Surface smooth, entirely invested with a soft, woolly, firm, thin epidermis (which fell off in patches soon after capture, and was not renewed). Substance firmly fleshy ; opaque. Disk. Somewhat elliptical, entire, flat or slightly convex ; radii fine but distinct. Tentacles. In four row.s, the outer row containing 42 ; very short, knobbed ; the knobs agreeing in form with those of the following species. Disk and tentacles freely and completely retractile. Mouth. Slit-like, slightly furrowed. Colour. Column. Rich crimson, splashed with deeper crimson, and with pale yellowish. Epidermis dark olive-brown. Disk. Light crimson. Tentacles. Rosy white, with opaque white tips. Mouth. Deep crimson. Size. Diameter of base two inches and three-quarters : of disk rather more than an inch ; height from one to one and three-quarters. Locality. North Devon ; low water. 284 CAPNEAD^. Ill August, 1856, the Rev. J. P. Greenly, being on a visit to Ilfracombe, found in a crevice of the slaty rock at Bull Point, at extreme low water, this magnificent species, which lived in his possession till the following April. To his courtesy I owe copious descriptions and drawings made from the animal while in life and health ; by which I am enabled to draw up the foregoing diagnosis. I forwarded to him for comparison some drawings which I had by me of Mr. Thompson’s Corynactis heterocera / and the agree- ment of the two forms in all essentials, and especially in the singular shapes of the diverse tentacles, showed that they were of one and the same genus, which was thus proved to have characters that called for its separation from Corynactis. At the period last named my kind corre- spondent forwarded the specimen to me : but it was already dead; and while it retained its form and colour, I was precluded from adding anything to my knowledge from personal observation. In captivity the animal was lively and extremely sensi- tive, retracting its disk with remarkable suddenness and rapidity on alarm. It early crawled from the piece of slate on which it was captured, and took up a position on the side of a finger-glass in which it was kept. The tentacles were observed to vary the shape of their knobs, within slight limits : one here and there in the outer row occa- sionally approaching the hastate form of the next row. sanguinea. AUGUSTA. heterocera. CA R YOPHYLLIA CEA . C APNEA DjE. THE YELLOW IMPERIAL. Aureliania lieterocera. Plate IX. Fig. 12. Specific Character. Base scarcely exceeding column ; yellow. Corynactis heterocera. W. Thompson (w.), Proc. Zool. Soc. 1853. Go.sse, Man. Mar. Zool. i. 28. E. P. Wright, Nat. Hist. Review, April, 1859, p. 122. GENERAL DESCRIPTION. Form. Base. Adherent to rocks : scarcely exceeding the column in width ; very slightly undulate. Column. A stout cylindrical pillar, about as wide as high, but often con- stricted below the margin, when the lower portion becomes neai’ly hemi- spherical : margin forming a thick parapet, the inner edge of which is crenate, and separated from the tentacles by a narrow fosse. Surface smooth, entirely invested with a thin slimy epidermis, which is easily rubbed off, and quickly renewed. Substance firm and coriaceous ; perfectly opaque. Disk. Nearly circular, entire, ample, membranous, flat or slightly convex : radii fine but distinct. Tentacles. About 120, set in four rows, of which the outermost con- tains 32; the others one or two less : they are short, thick, cylindrical, with knobbed tips, diverse among themselves. The knobs of the outermost row are little wider than the stems, they are sub-conical, or kidney-shaped, seemingly formed of two lobes, with a round tubercle seated on the inner face just below the knob. Of the second row the knobs consist of two swellings divided by a constriction, each swelling composed of two globose lobes placed side by side, with a mucro terminating the whole. Of the two innermost rows the knobs are nearly sessile ; they are rondo-quadrangular, or shaped somewhat like a loaf of bread. In the expanded state all these organs He ne (Lesueur). Corticijera ) Sidisia (J. E. Gray). Base permanently attached ; spreading over rocks, stones, or shells, in either a linear or incrusting manner. Coluimi pillar-like, higher than wide; margin cut into strongly marked teeth, which are united by a thin membrane. Surface smooth, excreting a mucus, in which occasionally grains of sand become imbedded, constituting an adventitious epidermis. Bisk slightly concave ; radii inconspicuous. Tentacles conical, pointed, similar in structure to those of AsTRiEACEA : wholly retractile. Mouth more or less protrusile, simple. ANALYSIS OF BRITISH SPECIES. Invested with sand ; extension various Couchii. Without sand — Polypes cylindrical, olive ; several abreast sulcaiut. Polypes obconic, pellucid white j in single file A Iden. CA E YOPE YLLIA CEA . ANTUID^. THE SANDY CREEPLET. Zoanthus Gouchii. Plate IX. Flr/s. 9, 10 ; X. Fig. 5. Specific Character. Basal band extending variously ; polypes invested with a sandy coating ; tentacles in two rows. Zoanthus Couchii. Johnston, Brit. Zooph. Ed. 2, i. 202 ; pi. xxxv. fig. 9. Couch, Corn. Faun. iii. 73 ; pi. xv. fig. 3. Holds- WORTH, Proc. Zool. Soc. 1858 ; pi. x. figs. 3 — 7. Dgsidea (fi) papillosa. Johnston, Brit. Sponges, 190, fig. 18; pi. xvi. figs. 6, 7. Sidisia Barleei. J. E. Gray, Ann. N. H. Ser. 3, ii. 489 ; Proc. Zool. Soc. 1858 ; pi. x. fig. 8. GENERAL DESCRIPTION. Form. Basal hand. Narrow, irregularly creeping, soft, elastic, fleshy to the feel, very sensitive ; invested with sand, like the column. Column. Cylindrical, rising to about three or four times its diameter ; smooth, transparent. Margin cut into twelve or fourteen (generally the latter number) large fleshy triangular teeth, which are connected by a thin web of transparent membrane, the inner layer of which is composed of transverse fibres, the outer is gianular and cutaneous. In a state of semi- contraction, these teeth form strongly-marked converging ridges on the flat summit of the column. Investment. Fine sand, evidently not a secretion, but extraneous, imbedded in the epidermis, — the fragments (in Torquay specimens) being of different colours, some being of white limestone, others of red sandstone. When the column is much distended, the grains of sand become considerably separated, and we can distinctly see through the transparent and smooth integuments into the visceral cavity. Thus the sand forms manifestly only a single layer. Only very minute grains are used, and there is very little diSerence in their size. Dish. Generally flat or slightly concave, but protrusile in a conical form. Radii apparently distinct, but only because the upper edges of the septa appear through the perfectly transparent disk. 298 ZOANTHIDJi:. Tentacles. Twenty-eight (twenty-four in less mature specimens), arranged in two rows, fourteen in each : those of the inner row correspond to the marginal teeth, those of the outer are intermediate. They are sub-equal, taper, bluntly pointed, and, when extended, about equal in length to the diameter of the column, hollow, not warted, with thick walls, which, in contraction, fall into transvei’se or annular corrugations. They are pro- truded in a brush, but, when fully expanded, spread out horizontally. Mouth. Lip sharp, much crenated, protruded after feeding. Colour. Investment of root-hand and column. Pale brown, the hue of the sand. Column. Beneath the investment, transparent and colourless. Disk. Pellucid reddish-grey, dusted with excessively minute white specks. Tentacles. Ti’anslucent, nearly colourless ; but each has a small mass of opaque white pigment on the internal surface, just at the tip : the aggre- gation of white points has a pretty effect. Mouth. Lip opaque white. Size. Xone that I have seen alive exceeded one-eighth of an inch in diameter, and about thrice that height in extension. In contraction the button is usually about a line in height, ilr. Holdsworth has obtained specimens much larger than these. Locality. The extreme northern and southern points of the British Islands, North- umberland, and various other points of our coast ; deep water ; on stones and shells, and free on the sea-bottom. VARIETIE.S. a- Linearis. The condition above described, in which the root-band creeps in a narrow i-ibbon over stones and shells. Cornwall and Devon. (Plate X. fig. 5.) jS. Diffusus. The root-band spread over the surface of a shell as a continuous carpet, whence the polypes spring, irregularly crowded together. Northumberland. (Plate ix. fig. 10.) y. Liber. Unattached. The root-band forming a free cylinder, exactly resembling the column of the polype, and of the .same diameter. The polypes in this case branch irregularly from the cylinder, and terminate both its extremities. Shetland. (.Plate ix. fig. 9.) Tf wc selected a single specimen of each of these vaviclics, THE SANDY CREEPLET. 299 and compared them, without any other information, nothing would he more manifest than that we must assign them not only to distinct species, hut even to distinet genera. IMr. Alder has favoured me with many specimens, obtained hy ^Ir. Barlee, at Shetland, some of which, each consisting of several full-grown polypes, are perfectly independent and compact, showing not the slightest trace of adhesion to any foreign body, nor of any part that can he distinguished as a root-hand. Thus, in the specimen figured in Plate ix. fig. 9, three polypes diverge from a common centre ; others are similarly formed, sometimes with a triangular dilatation of the point of divergence, which thus becomes flat, hut still with both surfaces eq^ually entire. 1 have not seen more than three polypes on any free specimen. But among these, we see specimens at first sight hardly distinguishable from them, except hy a sliglit globosity at the point of divergence : when we turn these over, we dis- cover that the globosity has been moulded on a minute shell, evidently that of a Natica. Then others occur, in which the shell, almost always a Natica, is larger, and there is a distinet basal carpet uniformly spread over it, of the sand-covered flesh, from which spring four or more polypes : these are manifestly identical with the free ones. But on larger shells the colony of polypes is made up of more individuals ; in one specimen before me, in which the shell is about the size of Natica Alderi, there are nineteen polypes. In every case the basal carpet has spread in uniform thickness over the entire shell, following the form aecurately, and extending to the edge of the outer lip, and clothing the rotundity of the inner lip as far as the eye can follow it. Strange to say, in every example, the shell itselt has wholly disappeared, and all that is left is the exact model of it in the sand-clothed membrane, or basal carpet, of the polype. 300 ZOANTHID^. In this condition, the zoophyte was mistaken by Dr. G. Johnston for a Sponge, and he has accordingly figured and described it in his “ British Sponges,” under the name of Dysidea papillosa. I do not see in what single particular such specimens differ from the genus Palythoa of Lamouroux, as this is characterized by M. Milne Edwards : — Poly- piero'ides cylindriques, naissant sur une expansion hasilmre memhraniforme, lihres lateralement, ov. soudes entre eux, et formant des masses encroutantes / ” * and thus we find the same species in some cireumstances a Zoanthus, in others a Palythoa. Nay, more, as if to increase the confusion. Dr. J. E. Gray has actually made a new genus for the inter- mediate free condition, which he calls “ Sid{sia.”\ The only way in which I can account for the free condi- tion is by supposing that the germ was, in those cases, deposited on a fragment of shell or stone so minute as to be completely overspread and enveloped by the increasing base.j The unvarying disappearance of the shell in the diffuse variety is more remarkable, and seems to imply a corrosive or absorbent power in the base. That the Shetland and Northumberland specimens are identical with ours in Torbay seems pretty certain ; for Mr. Alder, who has had opportunities of seeing both in the living state (some from the north having been sent him alive by Mr. Barlee, and some from the south by myself), can see no specific diversity between them. But that they are the same speeies as the Zoanthus Conchii of the Cornish coast, 1 assume rather than prove. It is unlikely that there should * Hist, dea CoralHaires, i. 301. f Annals Nat. Hist. Dec. 1858. J Mr. Alder remarks on these varying conditions as follows : — “I have come to the conclusion that when the zoophyte has free space on a stone it runs over it as Zoanthus ; but when the base is confined to a shell, it spreads into an uniform crust, as Palythoa. The loose branched speci- mens, I conclude, having affixed themselves to some minute object not affording a proper base of attachment, take a tubular form until they tei'minate in polypes.” — ( In litt.) THE SANDY CREEPLET. 301 be two species of the same uncommon genus, having so many points in common, found in so close proximity as the Devon and Cornwall coasts, and yet there are glaring dis- crepancies between Mr. R. Q. Couch’s published descrip- tions and the characters of our animal. He describes the surface as “ glandular,” the form as frequently “ contracted to an hour-glass shape,” and as being very versatile ; the habit as sluggish, and slow to change ; the tentacles as “ darker at the extremities than at the base ; ” not one of which particulars do our specimens contirm. My first personal acquaintance with the species I owed to Mr. Holdsworth, who dredged several colonies in twelve fathoms, ofi" the Ore Stone, near Torquay, in October, 1858, where fiu’ther researches show it to be quite common. They were of the variety linearis, affixed to fragments of slate and old valves of Cardium rusticum, twenty or thirty polypes on each, nmning in sinuous bands from half a line to three lines apart in the series. The colonies meandered over both surfaces of the fragments. One of these colonies my friend kindly gave to me, and it has lived now ten montlis with me. The polypes are by no means sluggish, but are continually opening and closing with considerable vivacity. When eompletely con- traeted, each polype is a cylindrical button, with the summit round and depressed in the centre. As expansion proceeds, the centre evolves, and the summit becomes nearly flat, with the twelve or fourteen strongly marked marginal ridges radiating from the central orifice. The central aper- ture enlarges, and the white tips of the tentacles are seen protruding, and presently the tentaeles themselves, blunt and pellueid white, which soon arch outwardly. They feed readily on raw flesh or earthworms, but will take only very minute fragments. These, however light their contact, cause the tentacles to retract ; but if the 302' ZOANTIIID.E. morsel be laid gently on the truncate summit of the closed column, the converging teeth appearing, it will remain there until the animal seizes it. The tentacles are protruded one by one so cautiously that the meat is not disturbed, and soon we discern that it is environed by a wall of tentacles, and that the mouth is gaping widely to embrace it. After feeding, or when food which has been resting on the disk is suddenly taken away, the whole disk is protruded as a cone, on the summit of which the open throat forms a Avide valley, coarsely furroAved. The creeping-band is very sensitive ; when touched with a needle-point, all the polypes suddenly contract, yet not quite simultaneously, but in the order of succession cor- responding to their proximity to the point of attack. Mr. IIoldsAYorth tells me that “ the polypes liA’^e A'ery Avell Avhen detached from their support.” The generic name is formed from an animal, and av6o<;, a floAver; the English term is meant to express its peculiar habit. Shetland, G. Barlee : Northumberland, J. A. : Guernsey, J. A. : Torquay, TT. H. II.: CornAA^all (throughout), 7?. Q. C. : Strangford Lough, TJ~. T. ASTRiEACEA. ZOANTHUS. Caryophylliacea. CA n YOPII YLLFA CEA . ZOAYTHIDJE THE FURROWED CREEPLET. ZoantJius sulcatus. (Sp. iiov.) Plate IX. Fly. 7. Specific Character. Upper half of column free from sand, and indented with longitudinal furrows, GENERAL DESCRIPTION. Form. Bas il band. Broad, with an irregularly sinuous outline, and offshoots, often bearing three polypes abreast ; loosely invested with coarse sand. Column. Generally cylindrical, but versatile, sometimes hour-glass shaped, springing out of a membranous epidermis, which tightly invests it, and holds a few grains of very fine sand imbedded in it. When ex- tended, the column rises free and smooth out of this, which then reaches to about one-third of the height. Surface marked with twenty-two (in immature specimens twenty) longitudinal sulci, most conspicuous towards the summit : in the button state this is rounded, with a central depression, where the sulci meet. Each alternate intersulcus forms a marginal tooth. Bisl:. Saucer-shaped ; radii not conspicuous. Tentacles. Equal in number with the intersulci, with which they cor- I’espond, in two rows, the inner row to the marginal teeth, the outer inter- mediate. Sub-equal, conical, pointed, usually radiating horizontally. Mouth. Not raised on a cone. Colour. Column. Dull uniform olive : each intersulcus having a blackish spot near its summit ; and each tooth is silvery white. Dish. Yellow-olive ; but invariably more or less studded with very minute grains of white sand, which seem fixed, and look like silver fdings. Aggregations of these grains specially occur at the bases of the secondary tentacles, omitting the primary ones. Tentacles. Perfectly colourless and transparent, with spherical granules of yellow-brown pigment, set like pavement on the interior surface of the wall, generally in contact, yet here and there leaving large spaces alto- gether unoccupied. The colour of the column and disk is evidently formed by similar granules, but in uninterrupted contact. 304 ZOANTHIDiE. Size, Column about one-eighth of an inch high, and one-twelfth wide. Locality. Torbay ; on rock, between tide-marks. This very distinct and interesting little Zoanthus occurred in a large colony at Broadsands, near Brixham, in March, 1859. They were spread on a rock of soft red sandstone, and so numerously, that, in the fragment wliich came into my possession, I counted sixty polypes in a space of one-and-a-half inch square. At first their character was much disguised by the crowded sand- tubes of a very minute Terehella, out of the tangled masses of which the Zoantlii were peeping. When these were cleared away by the careful application of a needle-point and a hair-pencil, the basal expansion was apparent, an irregular broad band, with several polypes abreast, as described above. The texture of the band appears less compact than in the preceding species, with wliich I com- pared it, having a more cellular appearance ; the grains of sand too are coarser. The species is hardy, my specimens being healthy at the present time, after three months’ captivity. They are evidently diurnal in their habits and predilections, gene- rally expanding under the stimulus of sunlight, but always closing at night. When the polype is irritated it shrinks nearly to the epidermis, and from the whole summit throws off a mucus, which presently becomes membranous, and seems identical with the epidermis. Couchii. [Solanderi.] SULCATUS. Phellia. YOPHYLLIACEA. ZOANTHID.E. THE MTHNKLED CREEPLET. Zoanthus Alderi. (Sp. nov.) Plate IX. Fig. 8. Specific Character. Polypes free from sand ; set in single file, obconic, transversely wrinkled. GENERAL DESCRIPTION. Form. Basal band. Narrow, smooth, irregularly branching, free from sand. Column. Inversely conical, the summit being two or more times as broad as the base ; summit (in the button state) swelling, flat, depressed in the centre, with many (about twenty ?) radiating stinee, indicating the marginal teeth. Surface smooth, without any investment of sand, but marked throughout with close-set transverse or annular wrinkles. Disk and Tentacles. Unknown. COLOCR. Basal hand and column. Opaque milk-white. Size. Height of column about two lines ; gi’eatest diameter about half a line. Locality. Noi-thumberland: on a stone, at extreme low- water. The slight acquaintance that I possess witli this species I owe to !Mr. Joshua Alder, who has sent me a drawing and description of a specimen found by him at Cullercoats, X 306 ZOANTHII)^. at a very low spring-tide, in the summer of 1857. My friend favours me with the following note of the capture: — “It was soft and fleshy, without trace of corallum ; the individuals connected by a creeping fibre running over the under sur- face of the stone. I chipped a piece of it off, which fell face-downwards, and I fancy got injured in consequence ; as it never showed any signs of life after I put it into my bottle. I kept it two or three days in expectation that it might recover, but, as it began to decay, I secured the remainder by putting it into spirit.” There were about a dozen polypes in the colony, all of the same size, which seems to be good evidence that they had attained adult dimensions. Couchii. Alderi. ? Sarcodictyon. 307 FAMILY III.— TURBINOLIAD^. In tliis, and all the families which have now to come under consideration, the tissues secrete calcareous matter, which unites into a solid internal skeleton of stone, known as the CORALLUM. The stony substance is chiefly deposited — 1. in the integuments of the base and column, forming the WALL {mums) ; 2. in the septa, forming a series of perpendicular plates (lamellce), which radiate iinvard from the wall ; and, in some cases, another circle, or circles, of similar plates, PALULES {pali), which do not 'reach the wall ; and 3. (as I believe) in the ovarian mesenteries, form- ing a series of plates, generally twisted, in the bottom of the cavity, called the columella. The hollow centre, formed by the upper edges of the plates, is called the CALICE {calyx). Sometimes the exterior of the wall is furnished with longitudinal RIBS (costce), which correspond to the plates. The plates are arranged in cycles : those of the Jirst cycle project furthest inwards ; those of the second bisect the interspaces ; those of the third bisect the interspaces thus formed, and so on. The whole of the plates developed in one primary interspace constitutes a system. In the TuRBiNOLiAD.a2 the corallum is solid (not porous), simple, with the lamellar interspaces reaching to the bottom of the cavity, and perfectly free. The plates are highly developed, simple, and generally have a granular surface. The ribs are well-marked. X 2 308 ANALYSIS OF BRITISH GENERA. AYith 'palules : adherent. Palules in a single circle : coUimella of many slender twisted plates Caryophyllia. Palules in several circles : columella broad and irre- gular in form Paracyatlius. Without palules : free. Columella a single plate Splienotrochus. Columella absent Ulocyatlius. '•iPHEI lA K. V TtKA /■ -iiA ‘Rlj-H I A ^ A >r,-. 309 GENUS 1. CARYOFilYLLIA (Lamarck). Cyuth 'uui (Eiikknb.). Corallim simple, generally obconic, often with an expanded base, permanently adherent ; outline ovate or circular. Columella composed of several thin, narrow, twisted, vertical plates. Palules broad, entire, in a single circle. Plates straight, broad, projecting, and forming six systems. Pibs straight, developed 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 column 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 pn YLL TA CEA . TURBINOLIA DjE. THE HEVONSIIIEE CUP-COEAL. Caryopliyllia Svuthu. Plate X. Figs. 12, 13.* Specific Character. Plates in five cycles ; base broad; outline generally ovate ; height not exceeding the long diameter. Caryophijllia Smithii. cyaih us. sessilis. ? TurhinoUa 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. 4 — 8. Couch, Corn. Fauna, iii. 72; pi. xii. fig. 3. Gosse, Dev. Coast, 108 ; pi. v. figs. 1 — 5. M. Edwards, Hist. Corail. ii. 14. Fleming, Brit. Anim. 508. Bellamy, So. Devon, 267 ; pi. xviii. Fleming, Brit. Anim. 509. Dana, Zooph. 371. M. Edwards and Haime, Ann. Sci. Nat. Ser. 3, ix. 288. Gosse, Man. Mar. Zool. i. 33 ; fig. 50. GENERAL DESCRIPTION. CORALLUM. CARYOPIIYLLIA SMITHII {slightly 7nagnified). Section of corallum. Coralhm. 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 genei’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 granules. Plates. Forming five cycles, and six systems, but the plates of the fifth cycle * Marked in the Plate “ Cyathina Smithii.” 1 THE DEYONSIIIRE 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 thii-d 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. Palules. Well-developed, more flexuous than the septa, 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 longitudin.al 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 tinged with rose. Mouth. Pure white. Size. Corallum. Fine specimens attain a diameter of three-fourths of an inch, and a height nearly as great. Animal. Tire column when distended frequently stands an inch above the corallum, and exceeds it in breadth by a sixth of an incli on every side; the tentacles augment the height still further by nearly half an inch. Locality. On various parts of our coast in deep water, attached to stones and shells : Devon and Cornwall, on rocks between tide-marks. 312 TUliBlNOLIAD^. 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 clitfs 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 Nortli 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 jweserved 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 THE DEVUNSIIIEE CUE-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 (o 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 elsewlrere * 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 corallum, which had been broken from its base ; and another, of the replacement of a large number of the sejyta, 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 corallum of half a line in height. * Devonshire Coast, pp. 108 — 127. 314 TURBINOLIAD^. ]\Ir. 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, whicii were free or unconnected \i.e. without any loalT] doAvn 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,f it would appear that the CaryophylUa 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 the parent, with all the characteristic colours and marks, hut without the least trace of a coraUum. During the pi-ogress of this condition, the 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 coralhim. Double and even triple specimens are not uncommon ; and I have seen at least two examples (one of which I now possess) that arc fourfold. J The appearance of such speci- mens is exactly that of a branching coral ; and, strange to * Quoted in Johnston’s Br. Zoopb. i. 199. t Ann. N. H. for June, 1859. + Such a specimen I have figured in my Dev. Coast, pi. v. fig. 5. 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 aecidental fixation of two or more gemmules in close proximity to each other, and the coalescence of the cal- careous walls in process of gi'owth. The name Caryophyllia is formed of Kapvov, a nut, and ed ; they are united by their inner edges into an iixegular horizontal platform, out of the centre of which rises the columella. P. PTEBOPC3 ( corallum magnified ). 322 TURBINOLIADJC. Size. Diameter from Avail to wall '13 inch ; lieiglit 'C5. Ani.\ial. 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 Lo3.sieinoutli, in October, 1858, attacked to a valve of Cyprina, 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 presenting a ^•ery striking character. They remind me of the immense but- ti'csses which surround the base of the giant Ceiba of tlie .lamaican forests. To this feature I have alluded in the specific name, Avhich is formed from nrepov, a wing, and 7rov<;, a foot. kly 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 Carycpliyllia Smithii. It is by no means improbable that further research may considerably aug- ment the list of our liviim' Corals. O Tliulensis. Fl’EROPUS. 323 GENUS III. SPIIENOTROCHUS (M. Edw. & Haime). Turhinolia (Lajiarck), CorciUum simple, free, with no trace of adherence, wedge-shaped, the superior extremity wider in all directions than the inferior ; transversely elliptical. Columella, a single lamina, occupying the greater axis of the calice : its upper margin flexiioiis and bilobate. Paliiles 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. Pihs broad, not very prominent, in general crisped, or represented by a series of papillous tubercles. ANALYSIS OF BRITISH SPECIES. Comllum uniformly dimiuisliing downward ; ribs smooth . Macandrewanm. Corallurn pedicellate, with swelling nodes ; ribs crisped . Wrighlii. T 2 CA R YOPH YLLJA CEA . TURBIN on A DjB. THE SMOOTH-RIBBED WEDGE-CORAL. Sphenotrochus Macandrewanus. Plate X. Fig. 4. Specific Character. Corallum uniformly diminishing downward; ribs smooth, not salient ; edge of calice plane. Tarbinolia 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 Andrewianus. M. Edwards and Haime, Ann. d. Sci. Nat. Ser. 3. ix. 243 ; pi. vii. fig. 4. ilacandreivanus. 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. Ribs. 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-develojied cycle.s, close-set, straight, thick at the margin, and gradually thinning towards the centre of the calice ; salient, arched at their upper edge, with a surface very slightly granulose. The primaries and secondaries are subequal and similari and hence the appearance of twelve systems ; each of these is united w’ith the columella by two diverging laminae, as if the j'late 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 y-MOOTH-RIBBED WEDGE-CORAL. Ii25 Animal. Undeecribed. Locality. The coaets of Cornwall and Galway : deep water. I am sorry that I can give no information about this species additional to what is already known, viz., that it exists in a living state on our 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 ofi* Arran, on the west coast of Ireland, by Mr. Barlee. The generic name is from a wedge, and Tpo')(po<;, a tuft, and the sun ; q. d. “ a tuft of suns,” alluding to the radiating plates of the corallites. [Acrohelia.] Lopuohelia. [Amphihelia.] 336 FAMILY 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- cliyma^ 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. GENUS I. HOPLANGIA (Gosse). Phyllanfjia (Gosse). Coralliim iiicrusting foreign bodies. CoraUites ratlier short, formed by buds ^vhicll 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)y which permits the ribs to be traced through it ; granulate. Bibs thin, sharp, low, very unequally distinct. Columella a broad surface of rough papillae, merging into the plates. Balides wanting. Blafes 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, 11. Buroirir. CA R YOPH YLLIA CEA . ANGIADuE. THE WEYI^IOUTH CARPET-COEAL. Hoplangia 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 are 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 ejiitheca. Ribs. 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 “ Ph yllangia A mericana ” in some copies. THE WEYMOUTH CARPET-CORAL. 339 Columella. The floor of the cavity is covered with iiapillary 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. Plates. 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 irregularly notched and toothed, especially below ; but the upper edge of the prmctr /cs 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- HOfLANCiA equal, and the plates of the third or fourth {magnified). 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 this 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 Angia, as well as Phyllangia, but the above diagnosis will, I think, warrant my decision. In forming a generic name, I have followed the plan of ]\I. Milne Edwards in using a common element for the genera of a given family ; though perhaps a little heterodox for stanch Linneans, it has advantages. Taking then the z 2 340 ANGIAD.E. element angia, from £17709, a cup, I have completed the word from oirKov, armour; with a double allusion to the mail-like epitheca, and the toothing of the plates. Tlie 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 tliis were from fifty to a hundred specimens of this little Coral, clustered in many groups. It was presumed to be Cargo - phyllia SmitJni, 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 tvas secured. I was not so fortunate as to see the animal alive, my s})ecimen, though in the flesh, being in an advanced state of decomposition ; but the discoverer, tvho is pretty familiar with C. Smitkii, 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. lie observed also numerous tentacles, but did not notice whether they were knobbed. [Angia.] Hoplangia. [Phyllangia.] 341 FAMILY VI.— EUPSAiMMIADiE. The stony tissue is here deposited in siieh 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 wliole ; it is perforate, and eitlier almost or quite naked, with a gi-anulate ver- miculate surface. The plates are numerous ; those of the last cycle always deviate from the radius of the calice, their planes approach- ing the bisection of their system, so that 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 arc completely open to the bottom, or divided only by a few incomplete partitions. There is only one British genus known, BaJanophylUa. 342 GENUS I. BALANOPHYLLIA (Wood). Corallim 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. regia. CA R YOPUYLLIA CEA . EUPSAMMIAD^. THE SCAELET AND GOLD STAR-COKAL. BalanophylUa regia. Plate X. Firjs. 10, 11. Specific Character. Corallum sub-conical, circular : epitheca extending to margin : plates in five imperfect cycles, Balanophijllia reyia. Gosse, Dev. Coast, 399; pi. xxvi. figs. 1 — 6. Ibid. Man. Mar. Zool. i. 83 ; fig. 61, 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. Ribs. 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 are 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 downwai’d 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 Corail. i. 45. 344 EUPSAiOIIAD^. primaries themselves, from which 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 united 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. ANIMAL. Form. Column. Cylindrical, extensile, smooth, or somewhat invected. Disl\ 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, obtusely-pointed, with- out terminal knobs : their walls are translucent, and studded with 02:)aque transversely-oblong wartf?, which become confluent towards the tip. Colour. Column and Dlsl'. Vivid scarlet in adults, orange in young individuals, opaque. Tentacles. 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 ba.se ; height from one-sixth to one-fourth. The animal in full expansion maj* reach one-third of an inch in diameter, and ono-half in height. B. REGIA. Locality. The coast of North Devon : on rocks at extreme low water. This showy little Coral, interesting not merely for its beauty while alive, but for its peculiar structure when cleatl, was discovered by myself in 1852. I had been spending a THE SCARLET AND COLD STAR-CORAL. 345 summer at Ilfracombe, and the chills and storms of autumn were already warning the migrant inliabitants away. It was a spring-tide in September, and the water had receded lower than I had seen it since I had been at the 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 whicli the water remained, a tide-pool of three feet depth in the middle. The whole concavity of the interior was so smooth that I could find no resting-place for my foot in order to examine it ; though the sides, all covered with the pink lichen-like Coralline, and bristling with Laminarias 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 F lustra 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 aii unusual colour, a most refulgent orange. It was detached by means of the hammer, as were several more, which were associated with it. Xot su.specting, however, that it was anything more than a variation in colour of that very vari- able species, Caryo'phyllia Smithu, I left a good many remaining, for which I was afterwards sorry, since they proved to belong to this new and interesting form before us. All were affixed to the pci’pendicular side of the pool, above the permanent water-mark : and there were some of the common CaryopliylUos associated with them. I afterwards found the same species in considerable number, e.specially during the very low springs of the 346 EUPSAMMIAD^. October new moon, among the rocks off tlie Tunnels, all in the vicinity of the spot where I found the first. They were always in the same circumstances, erowded 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 charaeters 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 brillianey, and is moderately hardy, though it appears rather more difficult to keep than Caryopliyllia. The integuments are opaque, even when distended : indeed they never become filled with water to anything like the extent which makes the spceies 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 when all the tentacles are withdrawn. I am not sure that the disk is ever wholly covered by the inver- sion of the eolumn ; even when the tentacles are quite con- eealed beneath the margin, the large mouth-eone 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 the 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 month 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, ^\th 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 i\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 D. regia can be confounded. The generic name is derived from ^d\avo<;, an acorn or nut, and (f>vWov, a leaf, and the specific alludes to the royal colours in which the animal is arrayed. Ilfracombe, P. //. G. ; Lundy, C. K. REGIA. [cylindrica 348 LUCERNARIAD.E. (?) POCILLOFORA INTERSTINCTA (Mliller). At a meeting of the Royal Society of Edinburgh (Trans. !March, 1846), Dr. Fleming exhibited a characteristic draw- ing of a Focilloj)ora presumed to be of this species, which was obtained by Dr. Hibbert in the Shetland Seas. Dr. Fleming had expected that a detailed description of tliis would have been published before the appearance of liis “ History of British Animals,” in 1828. It is, however, I believe, still a desideratum. The genus is marked by the following characters : Corallum massive or sub-trcc-like, with thick, imperforate walls. Visceral chambers divided by well-developed hori- zontal partitions, or floors, in successive stages. Plates rudimentary. Calices shallow, with a thick ring at the bottom of each, forming a sort of columella. LUCERNARIAD.E. Contrary to my original intention, I have determined to exclude this family from my work. Their true affinities arc with the Ilydrozoa and Meduscp.. The gelatinous tex- ture, the expanded umbrella, the ovaries in the substar.ee of the umbrella, the four-lipped mouth placed at the end of a free peduncle,* and the quadripartite arrangement, arc all !Medusan characters. The tentacles in marginal groups are found in Bouffainvilhva, and their form, — knobs at the tip of long footstalks, — agrees more with Slahheria than with Corynactis and Cay'yojdiylUa. * See my fig. of Campamdaria, in Devonsb. Coast, p. 29(3, pi. xviii. ANATOMICAL DETAILS APPENDIX. I. SPECIES DISCOVERED TOO LATE FOR DESCRIPTION IN TIIEIJi PROPER PLACES IN THIS VOLUME. ASTR^ACEA. SAGARTIADM. THE LATTICED COEKLET. PhelUa Brodricii. Plate VIII. Fig. 2. Sptci^ic Character. Epideriais free at the margin, dense, transversely corrugated. Tentacles marked with a latticed pattern. Phcllia Brodricii. O0.SSE, Annals N. II. Ser. 3. iii. 46. GENERAL DESCRIPTION. Form. Base. Adherent to rocks ; cousiderahly exceeding the column. Column. Flat and wrinkled when completely contracted : rising to a tall, somewhat slender pillar, studded Avith Ioav warts on its upper jAortion, hut 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 margin, much wrinkled in semi-contraction, and forming a star of radiating furrows in closing. Dish. Flat or slightly concave ; outline circular. Tentacles. Arranged in five rows, viz. 6, 6, 12, 24, 48 = 96 ; short and sleudei’, diminishing from the first roAV outwards ; in ordinary extension not longer than one-fourth the diameter of the disk ; generally earned arching over the margin, the tips occasionally turned up. Mouth. Elevated on a strongly marked cone. Acontia. Not emitted, even under strong irritation, while in my posses- sion. Mr. Ilrodrick, however, has seen them projected from the mouth. 350 APPENDIX. COLOUK. Column. Exposed part pellucid white, with the warts opaque w'hite. Epidermis. Ochreous drab, slightly darker in some parts, with longi- tudinal 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 primary and secondary radius marked W'ith 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 fui-rows. Size. Diameter of base nearly an inch, of extended column half an inch, of flower from one-third 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. lie kindly sent me a specimen in November, 1858, which had at that time been in his possession about sixteen months, liaving 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 clo.sing. The light of a candle, concentrated by a lens, presently causes it to shrink and contract. gausapata. Brodiucii. troglodytes. ASTR^ACEA. BVNODIBjE. THE RINGED DEEPLET. Bolocera eques. (Sp. nov.) Plate IX. Fig. 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 stria; ; 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 striae. 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 {mucro) ; 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 distended, upwards of one-third of an inch in diameter ; are flexuous, and thrown in various directions ; are strongly adhesive ; they are jjerfectly 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. Disk. Pale bufif or drab, unspotted ; pellucid. Tentacles. Pellucid white ; a broad scarlet ring, hounded below by a narrower one of opaque white, surrounds the middle of each tentacle. Mouth, Liji as the disk. Gonidial tubercles white. Stomach-wall marked with alternate lines of pellucid and opaque white. Size. Height of column, when distended, four inches, diameter nearly the same ; expanse of flower 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 tlie 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. Tucclice, and presenting much in common 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 liitherto overlooked, is that it has been passed over as that fiimiliar species. Yet tlie 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 enscmhle, and especially the APPENDIX. 353 rings on its 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. crassicornis, 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 gTeater 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 cras- peda. Then the 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 whole place of the disk- Then the tentacles lost their power of distension, and resumed their flaccid and con- tracted condition, when the longitudinal sulci became again conspicuous. And so the illustrious stranger died. I subsequently received another specimen from Banff, in every respect like the former. It survived but ten days. Tuedim. 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 sm’face 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. Pellucida (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. Yarfellii (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-red ; 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. Z/astota (Wright). “Base .adherent 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.x rows, set close to m.argin ; 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-red.” Berehaven, Co. Cork. N.B. The above five species seem all referrible to that group of the genus Sagartia, which I have provisionally named TJwe. ' 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 eighteen, filiform, in two rows.” (Fleming.) Shetland. APPENDIX. 355 III. ADDENDA. Sagartia hellis. The Act. Joknstoni of Mr. Cocks is a variety of this species ; two specimens have come under my notice. miniata. A friend (^E. TI^ II. II.) thinks that the Act. elegans of Dalyell is this species (see supra, p. 100). If so, my name must give place to his. ornaia. 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. pallida. Sent me in some numbers from Banff. A consider- able colony has also been found at Torquay. coccinea. Abundant in deep water, Torbay. parasitica. Found, at Jersey, between tide-marks. Phellia gausapata. 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 coccinea. A damsia 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. SphenotrocJius 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. Wrightii. Dr. Wright has sent me a fifth specimen from the same bank as the other four, differing considerably in form from all. Lopholielia prol i/era. 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. Bcdanophyllia regia. Two living specimens have been dredged in Ply- mouth Sound, by Mr. T. H. Stewart of the Roy. Coll. Surg. 356 APPENDIX. IV. GEOGEAPHICAL 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 Eastei'n ; from the Humber to the Thames, a flat low .shore. 4. The South-east; from the Foreland to St. Alban’s Head; chiefly chalk cliffs. 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 Carusore Point to Mizen Head. 9. The Atlantic, from Mizen Head to Eathliu 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 the 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 Soutli Irish, and finally the Hebridean. These numbers represent, of course, the state of our knowledge rather than the fact. I look for additions in 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. crassioornis ? tuberciilata Margaritae . Churchi® . ? spectabilis Scoticus Mitchcllii . hastata (Pe.) undata . . triphylla . ? cylindrica. chrysanthell. microps . . i callimorpha carnea . . ? Beautempsii ; albida . . li arcticus . . i[ prolifers. . I Durotrix . regia . . . |. f interstincta Total 75 .10 -1- Uj7;n 51 20 - 2^0 21 22 ZSO J/:. Jji/ >37 358 APPENDIX. V. NAMES OF AUTHORITIES A.B. a Miss Church. A. M. M. Mrs. Murray Menzies. A.R. ' Mr. A. Robertson. C.K. Rev. Charles King.sley. C. W. P. Mr. Chas. W. Peach. D. B. Miss Barnie. D. F. Mr. D. Ferguson. D. L. Rev. David Land.sborough. D. Jt. Mr. David Robertson. E. C. B. Mr. E. C. HolwelL E. F. I’rofessor Edward Forbes. E. L. W. Mr. E. L. Williams, Juu. E. P. W. Dr. E. Perceval Wright. E.W.H.H. Mr. E. W. H. Holdsworth. F. U. W. Mr. F. H. West. F. L. C. Rev. F. L. Currie. F. N. B. Mr. F. N. Brodei’ick. G.B. Mr. G. Barlee. a a H. Dr. G. C. Hyndman. 0. B. Dr. G. Dansey. 0. D. (B.) Professor Dickie. (1 0. Mr. G. Gatehouse. 0. G. (F.) Mr. G. Guyon. G. U. L. Mr. G. H. Lewes. G. J. Dr. George Johnston. G.J.A. Professor Allman. G. T. Rev. George Tugwell. B. B. D. Rev. H. H. Dombrain. B. 0. Mr. H. Owen. J. A. Mr. Joshua Alder. J. a. Dr. John Coldstream. J. a G. Miss Gloag. EXPRESSED BY INITIALS. /. D. B. (A misprint for T. D. H.) J. G. Rev. James Guillemard. J. G. D. Sir John G. Dalyell. J. M. Mr. James Macdonald. J. M. J. Mr. J. M. Jones. J. P. Mr. J. Pi-ice. J. R. G. Prof. J. Reay Greene. J. R. M. Mr. J. R. Mummery. J. T. Mr. John Templeton. J. T. //. Mr. James T. Hillier. M. E. G. Miss Guille. M. V. Miss Vigurs. P. B. G. Mr. P. H. Gosse. R. B. Dr. Robert Ball. R. C. J. Prof. R. C. Jordan. R. B. Mr. R. Howse. R. P. Mr. Robert Patterson. R. Q. C. Mr. Richard Q. Couch. S. B. Mr. Sydney Hodges. S. IF. Mr. S. Whitchurch. T. D. B. Dr. Thos. D. Hilton. T. S. TF. Dr. T. Strethill Wright, IF. A. L. Mr. Wm. Alford Lloyd. IF. F. S. Rev. W. F. Short. W. G. Rev. Walter Gregor. IF //. Rev. Wm. Houghton. TF M'C. Mr. W. M'Calla. 11'^, P. C. Mr. W. P. Cocks. TF T. Mr. Wm. Thompson (Bel fast). TF T. (TT') Mr. Wm. Thompson (Wey mouth). MAGN I FI ED. P/ATK XII I?; ! ~r H^ofsi.DCL ,1 PHELLIA PICTA r •* ? ZOANTHUS SULCATUS 3 EDWARDSIA CARNEA 4 CARYOPHYI I I A , / i» Dicirti jc 5 ZOANTHUS ALDERI. 6 HALCAMPA MICROPS 7. ORECORIA FENESTRATA 8 PHELLIA MUROCINCTA t r INDEX. N.B. The names inclosed within brackets are such as are not adopted in this work. Acontia, xxii. Actinia, 174. ACTINIA D^, 171. Actinoloba, 11. Actinopsis, 150, 170. Adamsia, 124. Addenda, 355. Aipta-sia, 151. albida, 264. Alderi, 305. ? Alderi, 354. ^Allmanni], 289. [amacAa], 152. [Americana], 338. Anemone, origin of the name of, 14. Anemone. Cave-dwelling, 88. Cloak, 125. Daisy, 27. Eyed, 84. Fish-mouth, 57. Gold-spangled, 119. Pallid, 78. Parasitic, 112. Plumose, 12. Orange disked, 60. Ornate, 54. Rosy, 48. Sandalled, 73. Sk;arlet-fringed, 41. Snakelocked, 105. Snowy, 66. Translucent, 82. Anemones, enemies of, 168. food of, 103, 164, 193, 272. voracity of, 215. A NOT AD A, 336. [anguicoma], 105. A.nthea, 159. ANT HEAD jE, 148. Abachnactis, 263. arcticus, 330. ASTR.EACEA, 8. augiuta, 283. [aurantiaca], 12. I Aubeliania, 282. ! [aurora], 88. Authorities, Names of, 358. Balanophtllia, 342. Ballii, 198. Bantry Bay, riches of, 64. [Barleei], 297. ; Base, 1. Beadlst, 175. ' [Beautempsii], 262. ' Bee, mistake of, 213. ? Bella, 354. helUs, 27. [himaculata], 209. [biserialis], 152. Bolocera, 185, 351. [borealis], 310. Brodricii, 349. Bcnodes, 189. BUNODID.E, 183. callimorpha, 255. , [Candida], 73. Capnea, 279. CAPNEADJE, 278. Capstone Hill, 31, 74. [carciniopados], 125. carnea, 259. Carpe^coral, 338. Caryophtllia, 309. CARYOPHYLLIACEA, 276. Cavity, 4. [cerasam], 175. cereus, 160. [Cereus], 205. Cerianthus, 267. 1 [chiococra], 1 75. CnRTROEEA, 123. chrysanlhellum, 247. chrysosplenium, 119. Chiirchice, 222. I Cinclides, xxiii. I [clavata], 198. 360 INDEX. Cnidse, xx. xxvii. Cnidoe, chambered, xxviii. tangled, xxx. spiral, xxxi. globate, xxxii. cocchiea, 84. Colour, change of, 180. Column, 2. Concealment, instinct of, 212. [coraUina\, 175. [coWacm], 209. Corklet, Walled, 135. Warted, 140. Painted, 143. Latticed, 349. coronata, 202. CoRYNACTIS, 288. Couchii, 152, Couchii, 297. Crab, Hermit, 115, 128. Ci’aspeda, xxi. a-assicomis, 209. Crawling, mode of, 81, 164, 253. Ci’eeplet, Sandy, 297. Furrowed, 303. Wrinkled, 305. [Cribrina], 205. Crisp-coral, Scarlet, 330. Crock, 280. Crookhaven, cavern of, 214. Cup-Coral, Devonshire, 310. iloray, 317. Shetland, 319. Winged, 321. [Ctathina], 309. [cyafhus], 310. ?, cylitidrica 245. CVLISTA, 123. Deeplet, 186. Ringed, 351. dianthuH, 12. dlffitata, 206. Disk, 3. Division, spontaneous, 19, 46, 66, 86, 110, 168, 291. Durotrix, 338. Ecthorreum, xxix. [e(/u/fs], 160. Edwardsia, 254. [ejfoeta}, 112. Ek^gs, discharge of, 97, 100, 11/, ”225, 314,347,223. [ eleyaw^, 88. eque^f 351.^ \eqyAn'i\, 1 / 5. EUPSA MM I A D^E, 341. [exploratory, 88. Eyelet, 146. [felina\ 209. fenestrata, 146, [fiscella], 209. [Forskallii], 175. I [fraffacea], 175. Gapelet, 222. Gardens of Anemones, 51, 62, 64 68, 71, 164, 214. gausapafa, 140. gemniacea, 190. [.(7e?RJ>iacea], 209. Geographical distribution, 356. Germs, discharge of, 101, 132, 139 238, 273, [glandulosay, 190. Globehorn, 289. [graniineay, 175. Gregoria, 145. ? Greend, 216. Halcampa, 246. haxtata, 235. ? haiifata, 354. [hemisjdicerica], 175. heterocera, 285. [Ilolsaticd], 209. Hoplangia, 337. Horjiathia, 218. ichfliystoma, 57. ILYANTHID.E, 227. Ilyanthus, 229. Imperial, Crimson, 283. Yellow, 285. ? interstincta, 348. ? intestinalis, 354. [judaicdy, 12. \lacerata\, 105. juife, tenacity of, 96, 118. Lloydii, 268. Lophohelia, 333. [LUCERNARIAD.E], 348. I Macandrewanns, 325. [Mac A ndrewiy, 330. [macnlata\ 125. Margaritic, 219. , [margaritifera'], 175. i [memhrangceusy, 268. INDEX. 361 [mesembi'yanthemum], 88. mesemhryanthemum, 175. METRIDIAD^, 9. microps, 252. miniata, 41. Mitchellii, 232. Morecambe Bay, 93. Mouth, 4. murocincta, 135. Muzzlet, Arrow, 235. Trefoil, 2. Waved, 239. Necklet, 219. nivea, 66. [nodosa], 219. [Oculina], 333. OCULINAD^, 332. Odour, rank, 117. Opelet, 160. Organs, reproduction of, 251. ornata, 54. \pi'nata], 41. palliata, 125. j)allida, 78. Palythoa], 300. papillosa], 209. papillosa], 297. Paracyathos, 316. parasitica, 112. \pedunculata\, 27. ? pellucida, 354. [pellucida], 82. Peachia, 234. Pearlet, Scottish, 230. Scarlet, 232. [pentapetala^, 12. Peribola, xxxiv. Petit Tor, 31, 68, 136, 260. Piiellia, 134, 349. [PhyllangiaJ, 337. Pimplet, Gem, 190. Diadem, 202. Glaucous, 195. Red-specked, 198. Piutlet, Sand, 247. Rock, 252. picta, 143. [plumosa\ 12. Plumose Anemone, 12. POCILLOPORA, 348. Poisoning power, xxxvi. prolifera, 334. pteropus, 321. Pterygia, xxx. Pufflet, painted, 255. crimson, 259. [pulcherAma'\, 48. ] pura, 82. [p!trp!(?’ea], 176. reffia, 343. rosea, 48. [r«/a], 175. Sagartia, 25. subdivision of, 121. SAGAltTIADAE, 9. sanguinea, 280. [SCOLANTHUS], 254. Scoticus, 230. SCYPHIA, 123. Screw, xxix. [seni7/s], 12. [senilis , 209. Septa, xi. sessilis], 310. ]Sidisia], 300. Biphonactinia], 236. Smithii, 310. Species, what ? 50. ? spectahilis, 226. Spermatozoa, 99, 225. [sj)/ta;rofdes], 88. Sphenotrochus, 323. Spherules, 180. sjjhyrodcta, 73. Sprawlet, 264. Star-coral, Scaidet and Gold, 343. Stinging power, 136. Stomach, protrusion of, 32. Stomphia, 221. Strawberry, 177. Strebla, xxix. [sulcata], 160. sulcatus, 303. Swimming, mode of, 165, 265. System, tegumentary, x. muscular, x. nervous and sensory, xii. digestive, xiii. circulatory, xvi. respiratory, xvi. reproductive, xix. teliferous, xx. [tahella^ 175. Taxilianus, 317. Tealia, 205. [Tejnpletonii\ 27. Tenby, Caves of, 61, 70, 92. Tentacles, branching of, 109, 168. B B 362 INDEX. Tentacles, 3. elongation of, 16, 34, 44, 70, 101. Terms, explanation of, 1. {Thalia], 195. tkallia, 195. Thoe, 122. Thulensis, 319. Tide-pools, 31, 62, 68, 162, 344. Torquay, rocks at, 44. triphylla, 243. troglodytes, 88. Tnimplet, 152. ? tuberculata, 217. Tucdice, 186. Tuft-coral, 334. [Turbinolia], 323. TURBINOLIADjE, 307. Uloctathus, 329. {undata], 105. v/ndata, 239. venusta, 60. ? vermiculans, 274. {verrucosa], 190. {yestita], 268. Vestlet, 268. {viduata], 88. viduata, 105. {vinosa], 48. viridis, 289. Wartlet, Dahlia, 209. Marigold, 206. Watcombe, 32. Wedge-coral, Smooth-ribbed, 325. Knotted, 326. Woolhouse Rocks, 43, 51, 61. Wrightii, 326. ? Tarrellii, 354, Young, birth of, 36, 46, 71, 80, 99. 118, 193. ZOANTHIDjE, 295. i ZOANTHUS, 296. ERRATA. Page 10, line 4 ■jAdd the qualifying phrase "in general," to Page 11, line 20 [the character that there is but a single Page 12, second line from bottom .) mouth-angle and pair of tubercles. Page 13, line 10 for “ Always," read “ generally." Page 90, line 9 { ^orange^”"’^** tentacle fuU R. CLAY, PRINTER, BREAD STREET UILL. $ # n K \