Chapter 6

[Picture: Plate 4: Synapta Digitata etc.]

Colonel Montagu found them here some forty years ago; and after him, Mr. Alder, in 1845. I found hundreds of them, but only once, in 1854 after a heavy south-eastern gale, washed up among the great Lutrariæ in a cove near Goodrington; but all my dredging outside failed to procure a specimen—Mr. Alder, however, and Mr. Cocks (who find everything, and will at last certainly catch Midgard, the great sea-serpent, as Thor did, by baiting for him with a bull’s head), have dredged them in great numbers; the former, at Helford in Cornwall, the latter on the west coast of Scotland. It seems, however, to be a southern monster, probably a remnant, like the great cockle, of the Mediterranean fauna; for Mr. MacAndrew finds them plentifully in Vigo Bay, and J. Müller in the Adriatic, off Trieste.

But what is it like? Conceive a very fat short earth-worm; not ringed, though, like the earth-worm, but smooth and glossy, dappled with darker spots, especially on one side, which may be the upper one. Put round its mouth twelve little arms, on each a hand with four ragged fingers, and on the back of the hand a stump of a thumb, and you have Synapta Digitata (Plates IV. and V., from my drawings of the live animal). These hands it puts down to its mouth, generally in alternate pairs, but how it obtains its food by them is yet a mystery, for its intestines are filled, like an earth-worm’s, with the mud in which it lives, and from which it probably extracts (as does the earth-worm) all organic matters.

You will find it stick to your fingers by the whole skin, causing, if your hand be delicate, a tingling sensation; and if you examine the skin under the microscope, you will find the cause. The whole skin is studded with minute glass anchors, some hanging freely from the surface, but most imbedded in the skin. Each of these anchors is jointed at its root into one end of a curious cribriform plate,—in plain English, one pierced like a sieve, which lies under the skin, and reminds one of the similar plates in the skin of the White Cucumaria, which I will show you presently; and both of these we must regard as the first rudiments of an Echinoderm’s outside skeleton, such as in the Sea-urchins covers the whole body of the animal. (See on Echinus Millaris, p. 89.) {111} Somewhat similar anchor-plates, from a Red Sea species, Synapta Vittata, may be seen in any collection of microscopic objects.

The animal, when caught, has a strange habit of self-destruction, contracting its skin at two or three different points, and writhing till it snaps itself into “junks,” as the sailors would say, and then dies. My specimens, on breaking up, threw out from the wounded part long “ovarian filaments” (whatsoever those may be), similar to those thrown out by many of the Sagartian anemones, especially S. parasitica. Beyond this, I can tell you nothing about Synapta, and only ask you to consider its hands, as an instance of that fantastic play of Nature which repeats, in families widely different, organs of similar form, though perhaps of by no means similar use; nay, sometimes (as in those beautiful clear-wing hawk-moths which you, as they hover round the rhododendrons, mistake for bumble-bees) repeats the outward form of a whole animal, for no conceivable reason save her—shall we not say honestly His?—own good pleasure.

But here we are at the old bank of boulders, the ruins of an antique pier which the monks of Tor Abbey built for their convenience, while Torquay was but a knot of fishing huts within a lonely limestone cove. To get to it, though, we have passed many a hidden treasure; for every ledge of these flat New-red-sandstone rocks, if torn up with the crowbar, discloses in its cracks and crannies nests of strange forms which shun the light of day; beautiful Actiniæ fill the tiny caverns with living flowers; great Pholades (Plate X. figs. 3, 4) bore by hundreds in the softer strata; and wherever a thin layer of muddy sand intervenes between two slabs, long Annelid worms of quaintest forms and colours have their horizontal burrows, among those of that curious and rare radiate animal, the Spoonworm, {113} an eyeless bag about an inch long, half bluish grey, half pink, with a strange scalloped and wrinkled proboscis of saffron colour, which serves, in some mysterious way, soft as it is, to collect food, and clear its dark passage through the rock.

See, at the extreme low-water mark, where the broad olive fronds of the Laminariæ, like fan-palms, droop and wave gracefully in the retiring ripples, a great boulder which will serve our purpose. Its upper side is a whole forest of sea-weeds, large and small; and that forest, if you examined it closely, as full of inhabitants as those of the Amazon or the Gambia. To “beat” that dense cover would be an endless task: but on the under side, where no sea-weeds grow, we shall find full in view enough to occupy us till the tide returns. For the slab, see, is such a one as sea-beasts love to haunt. Its weed-covered surface shows that the surge has not shifted it for years past. It lies on other boulders clear of sand and mud, so that there is no fear of dead sea-weed having lodged and decayed under it, destructive to animal life. We can see dark crannies and caves beneath; yet too narrow to allow the surge to wash in, and keep the surface clean. It will be a fine menagerie of Nereus, if we can but turn it.

Now the crowbar is well under it; heave, and with a will; and so, after five minutes’ tugging, propping, slipping, and splashing, the boulder gradually tips over, and we rush greedily upon the spoil.

A muddy dripping surface it is, truly, full of cracks and hollows, uninviting enough at first sight: let us look it round leisurely, to see if there are not materials enough there for an hour’s lecture.

[Picture: Plate 9: Cucumaria Hyndmanni etc.]

The first object which strikes the eye is probably a group of milk-white slugs, from two to six inches long, cuddling snugly together (Plate IX. fig. 1). You try to pull them off, and find that they give you some trouble, such a firm hold have the delicate white sucking arms, which fringe each of their five edges. You see at the head nothing but a yellow dimple; for eating and breathing are suspended till the return of tide; but once settled in a jar of salt-water, each will protrude a large chocolate-coloured head, tipped with a ring of ten feathery gills, looking very much like a head of “curled kale,” but of the loveliest white and primrose; in the centre whereof lies perdu a mouth with sturdy teeth—if indeed they, as well as the whole inside of the beast, have not been lately got rid of, and what you see be not a mere bag, without intestine or other organ: but only for the time being. For hear it, worn-out epicures, and old Indians who bemoan your livers, this little Holothuria knows a secret which, if he could tell it, you would be glad to buy of him for thousands sterling. To him blue pill and muriatic acid are superfluous, and travels to German Brunnen a waste of time. Happy Holothuria! who possesses really the secret of everlasting youth, which ancient fable bestowed on the serpent and the eagle. For when his teeth ache, or his digestive organs trouble him, all he has to do is just to cast up forthwith his entire inside, and, faisant maigre for a month or so, grow a fresh set, and then eat away as merrily as ever. His name, if you wish to consult so triumphant a hygeist, is Cucumaria Pentactes: but he has many a stout cousin round the Scotch coast, who knows the antibilious panacea as well as he, and submits, among the northern fishermen, to the rather rude and undeserved name of sea-puddings; one of which grows in Shetland to the enormous length of three feet, rivalling there his huge congeners, who display their exquisite plumes on every tropic coral reef. {116}

[Picture: Plate 5: Balanophyllea Regia etc.]

Next, what are those bright little buds, like salmon-coloured Banksia roses half expanded, sitting closely on the stone? Touch them; the soft part is retracted, and the orange flower of flesh is transformed into a pale pink flower of stone. That is the Madrepore, Caryophyllia Smithii (Plate V. fig. 2); one of our south coast rarities: and see, on the lip of the last one, which we have carefully scooped off with the chisel, two little pink towers of stone, delicately striated; drop them into this small bottle of sea-water, and from the top of each tower issues every half-second—what shall we call it?—a hand or a net of finest hairs, clutching at something invisible to our grosser sense. That is the Pyrgoma, parasitic only (as far as we know) on the lip of this same rare Madrepore; a little “cirrhipod,” the cousin of those tiny barnacles which roughen every rock (a larger sort whereof I showed you on the Turritella), and of those larger ones also who burrow in the thick hide of the whale, and, borne about upon his mighty sides, throw out their tiny casting nets, as this Pyrgoma does, to catch every passing animalcule, and sweep them into the jaws concealed within its shell. And this creature, rooted to one spot through life and death, was in its infancy a free swimming animal, hovering from place to place upon delicate ciliæ, till, having sown its wild oats, it settled down in life, built itself a good stone house, and became a landowner, or rather a glebæ adscriptus, for ever and a day. Mysterious destiny!—yet not so mysterious as that of the free medusoid young of every polype and coral, which ends as a rooted tree of horn or stone, and seems to the eye of sensuous fancy to have literally degenerated into a vegetable. Of them you must read for yourself in Mr. Gosse’s book; in the meanwhile he shall tell you something of the beautiful Madrepores themselves. His description, {118} by far the best yet published, should be read in full; we must content ourselves with extracts.

“Doubtless you are familiar with the stony skeleton of our Madrepore, as it appears in museums. It consists of a number of thin calcareous plates standing up edgewise, and arranged in a radiating manner round a low centre. A little below the margin their individuality is lost in the deposition of rough calcareous matter. . . . The general form is more or less cylindrical, commonly wider at top than just above the bottom. . . . This is but the skeleton; and though it is a very pretty object, those who are acquainted with it alone, can form but a very poor idea of the beauty of the living animal. . . . Let it, after being torn from the rock, recover its equanimity; then you will see a pellucid gelatinous flesh emerging from between the plates, and little exquisitely formed and coloured tentacula, with white clubbed tips fringing the sides of the cup-shaped cavity in the centre, across which stretches the oval disc marked with a star of some rich and brilliant colour, surrounding the central mouth, a slit with white crenated lips, like the orifice of one of those elegant cowry shells which we put upon our mantelpieces. The mouth is always more or less prominent, and can be protruded and expanded to an astonishing extent. The space surrounding the lips is commonly fawn colour, or rich chestnut-brown; the star or vandyked circle rich red, pale vermilion, and sometimes the most brilliant emerald green, as brilliant as the gorget of a humming-bird.”

And what does this exquisitely delicate creature do with its pretty mouth? Alas for fact! It sips no honey-dew, or fruits from paradise.—“I put a minute spider, as large as a pin’s head, into the water, pushing it down to the coral. The instant it touched the tip of a tentacle, it adhered, and was drawn in with the surrounding tentacles between the plates. With a lens I saw the small mouth slowly open, and move over to that side, the lips gaping unsymmetrically; while with a movement as imperceptible as that of the hour hand of a watch, the tiny prey was carried along between the plates to the corner of the mouth. The mouth, however, moved most, and at length reached the edges of the plates, gradually closed upon the insect, and then returned to its usual place in the centre.”

Mr. Gosse next tried the fairy of the walking mouth with a house-fly, who escaped only by hard fighting; and at last the gentle creature, after swallowing and disgorging various large pieces of shell-fish, found viands to its taste in “the lean of cooked meat and portions of earthworms,” filling up the intervals by a perpetual dessert of microscopic animalcules, whirled into that lovely avernus, its mouth, by the currents of the delicate ciliæ which clothe every tentacle. The fact is, that the Madrepore, like those glorious sea-anemones whose living flowers stud every pool, is by profession a scavenger and a feeder on carrion; and being as useful as he is beautiful, really comes under the rule which he seems at first to break, that handsome is who handsome does.

Another species of Madrepore {121} was discovered on our Devon coast by Mr. Gosse, more gaudy, though not so delicate in hue as our Caryophyllia. Mr. Gosse’s locality, for this and numberless other curiosities, is Ilfracombe, on the north coast of Devon. My specimens came from Lundy Island, in the mouth of the Bristol Channel, or more properly from that curious “Rat Island” to the south of it, where still lingers the black long-tailed English rat, exterminated everywhere else by his sturdier brown cousin of the Hanoverian dynasty.

Look, now, at these tiny saucers of the thinnest ivory, the largest not bigger than a silver threepence, which contain in their centres a milk-white crust of stone, pierced, as you see under the magnifier, into a thousand cells, each with its living architect within. Here are two kinds: in one the tubular cells radiate from the centre, giving it the appearance of a tiny compound flower, daisy or groundsel; in the other they are crossed with waving grooves, giving the whole a peculiar fretted look, even more beautiful than that of the former species. They are Tubulipora patina and Tubulipora hispida;—and stay—break off that tiny rough red wart, and look at its cells also under the magnifier: it is Cellepora pumicosa; and now, with the Madrepore, you hold in your hand the principal, at least the commonest, British types of those famed coral insects, which in the tropics are the architects of continents, and the conquerors of the ocean surge. All the world, since the publication of Darwin’s delightful “Voyage of the Beagle,”‘ and of Williams’ “Missionary Enterprises,” knows, or ought to know, enough about them: for those who do not, there are a few pages in the beginning of Dr. Landsborough’s “British Zoophytes,” well worth perusal.

There are a few other true cellepore corals round the coast. The largest of all, Cervicornis, may be dredged a few miles outside on the Exmouth bank, with a few more Tubulipores: but all tiny things, the lingering and, as it were, expiring remnants of that great coral-world which, through the abysmal depths of past ages, formed here in Britain our limestone hills, storing up for generations yet unborn the materials of agriculture and architecture. Inexpressibly interesting, even solemn, to those who will think, is the sight of those puny parasites which, as it were, connect the ages and the æons: yet not so solemn and full of meaning as that tiny relic of an older world, the little pear-shaped Turbinolia (cousin of the Madrepores and Sea-anemones), found fossil in the Suffolk Crag, and yet still lingering here and there alive in the deep water of Scilly and the west coast of Ireland, possessor of a pedigree which dates, perhaps, from ages before the day in which it was said, “Let us make man in our image, after our likeness.” To think that the whole human race, its joys and its sorrows, its virtues and its sins, its aspirations and its failures, has been rushing out of eternity and into eternity again, as Arjoon in the Bhagavad Gita beheld the race of men issuing from Kreeshna’s flaming mouth, and swallowed up in it again, “as the crowds of insects swarm into the flame, as the homeless streams leap down into the ocean bed,” in an everlasting heart-pulse whose blood is living souls—and all that while, and ages before that mystery began, that humble coral, unnoticed on the dark sea-floor, has been “continuing as it was at the beginning,” and fulfilling “the law which cannot be broken,” while races and dynasties and generations have been

“Playing such fantastic tricks before high heaven, As make the angels weep.”

Yes; it is this vision of the awful permanence and perfection of the natural world, beside the wild flux and confusion, the mad struggles, the despairing cries of the world of spirits which man has defiled by sin, which would at moments crush the naturalist’s heart, and make his brain swim with terror, were it not that he can see by faith, through all the abysses and the ages, not merely

“Hands, From out the darkness, shaping man;”

but above them a living loving countenance, human and yet Divine; and can hear a voice which said at first, “Let us make man in our image;” and hath said since then, and says for ever and for ever, “Lo, I am with you alway, even to the end of the world.”

But now, friend, who listenest, perhaps instructed, and at least amused—if, as Professor Harvey well says, the simpler animals represent, as in a glass, the scattered organs of the higher races, which of your organs is represented by that “sca’d man’s head,” which the Devon children more gracefully, yet with less adherence to plain likeness, call “mermaid’s head,” {126a} which we picked up just now on Paignton Sands? Or which, again, by its more beautiful little congener, {126b} five or six of which are adhering tightly to the slab before us, a ball covered with delicate spines of lilac and green, and stuck over (cunning fellows!) with stripes of dead sea-weed to serve as improvised parasols? One cannot say that in him we have the first type of the human skull: for the resemblance, quaint as it is, is only sensuous and accidental, (in the logical use of that term,) and not homological, _i.e._ a lower manifestation of the same idea. Yet how is one tempted to say, that this was Nature’s first and lowest attempt at that use of hollow globes of mineral for protecting soft fleshy parts, which she afterwards developed to such perfection in the skulls of vertebrate animals! But even that conceit, pretty as it sounds, will not hold good; for though Radiates similar to these were among the earliest tenants of the abyss, yet as early as their time, perhaps even before them, had been conceived and actualized, in the sharks, and in Mr. Hugh Miller’s pets the old red sandstone fishes, that very true vertebrate skull and brain, of which this is a mere mockery. {127} Here the whole animal, with his extraordinary feeding mill, (for neither teeth nor jaws is a fit word for it,) is enclosed within an ever-growing limestone castle, to the architecture of which the Eddystone and the Crystal Palace are bungling heaps; without arms or legs, eyes or ears, and yet capable, in spite of his perpetual imprisonment, of walking, feeding, and breeding, doubt it not, merrily enough. But this result has been attained at the expense of a complication of structure, which has baffled all human analysis and research into final causes. As much concerning this most miraculous of families as is needful to be known, and ten times more than you are likely to understand, may be read in Harvey’s “Sea-Side Book,” pp. 142–148,—pages from which you will probably arise with a sense of the infinity and complexity of Nature, even in what we are pleased to call her “lower” forms, and the simplest and, as it were, easiest forms of life. Conceive a Crystal Palace, (for mere difference in size, as both the naturalist and the metaphysician know, has nothing to do with the wonder,) whereof each separate joist, girder, and pane grows continually without altering the shape of the whole; and you have conceived only one of the miracles embodied in that little sea-egg, which the Creator has, as it were, to justify to man His own immutability, furnished with a shell capable of enduring fossil for countless ages, that we may confess Him to have been as great when first His Spirit brooded on the deep, as He is now and will be through all worlds to come.

But we must make haste; for the tide is rising fast, and our stone will be restored to its eleven hours’ bath, long before we have talked over half the wonders which it holds. Look though, ere you retreat, at one or two more.

What is that little brown thing whom you have just taken off the rock to which it adhered so stoutly by his sucking-foot? A limpet? Not at all: he is of quite a different family and structure; but, on the whole, a limpet-like shell would suit him well enough, so he had one given him: nevertheless, owing to certain anatomical peculiarities, he needed one aperture more than a limpet; so one, if you will examine, has been given him at the top of his shell. {129} This is one instance among a thousand of the way in which a scientific knowledge of objects must not obey, but run counter to, the impressions of sense; and of a custom in nature which makes this caution so necessary, namely, the repetition of the same form, slightly modified, in totally different animals, sometimes as if to avoid waste, (for why should not the same conception be used in two different cases, if it will suit in both?) and sometimes (more marvellous by far) when an organ, fully developed and useful in one species, appears in a cognate species but feeble, useless, and, as it were, abortive; and gradually, in species still farther removed, dies out altogether; placed there, it would seem, at first sight, merely to keep up the family likeness. I am half jesting; that cannot be the only reason, perhaps not the reason at all; but the fact is one of the most curious, and notorious also, in comparative anatomy.

[Picture: Plate 10: Serpula Contortuplicata etc.]

Look, again, at those sea-slugs. One, some three inches long, of a bright lemon-yellow, clouded with purple; another of a dingy grey; {130a} another exquisite little creature of a pearly French White, {130b} furred all over the back with what seem arms, but are really gills, of ringed white and grey and black. Put that yellow one into water, and from his head, above the eyes, arise two serrated horns, while from the after-part of his back springs a circular Prince-of-Wales’s-feather of gills,—they are almost exactly like those which we saw just now in the white Cucumaria. Yes; here is another instance of the same custom of repetition. The Cucumaria is a low radiate animal—the sea-slug a far higher mollusc; and every organ within him is formed on a different type; as indeed are those seemingly identical gills, if you come to examine them under the microscope, having to oxygenate fluids of a very different and more complicated kind; and, moreover, the Cucumaria’s gills were put round his mouth, the Doris’s feathers round the other extremity; that grey Eolis’s, again, are simple clubs, scattered over his whole back, and in each of his nudibranch congeners these same gills take some new and fantastic form; in Melibæa those clubs are covered with warts; in Scyllæa, with tufted bouquets; in the beautiful Antiopa they are transparent bags; and in many other English species they take every conceivable form of leaf, tree, flower, and branch, bedecked with every colour of the rainbow, as you may see them depicted in Messrs. Alder and Hancock’s unrivalled Monograph on the Nudibranch Mollusca.