A Year at the Shore

by Philip Henry Gosse

We reluctantly turn our backs upon the magnificent battle of sea and land, and following this sheep-track, scramble down, holding fast by the tufts of thrift, round and soft and yielding, but sufficiently firm to present some resistance, or by the tussocks of wiry grass, till we leap down on the great piled masses of marble that past ages have thrown from the cliffs upon the beach. Among these we find many basins and pools of still water, for we are in a deep recess of the promontory, whose shelter renders us almost unconscious of the fury of the winter wind without; and the masses of rock that lie piled about so curb and break the force of the incoming sea, that it percolates rather than rushes into these secluded nooks. Tall walls of stone, too, shut out much of the light of day; and as to the sun, only his most slant evening rays ever reach this spot: it is enshrouded in an obscurity which is most congenial to both the plants and the animals which resort to our shores; and here, doubtless, though the season is still midwinter, we shall find our searchings rewarded by not a few of those creatures, beautiful and wondrous, in which the devout naturalist delights to trace the handiwork of the God of glory.

TOP-SHELL.

At the very first glance into this little rock-hollow, all fringed with crimson and purple weed, lined with scales of lilac coralline, and partly shadowed by the olive fronds of the leathery tangle, we discern many forms of animal life. Here, for instance, is a fine handsome shelled mollusk, the Purple-spotted Top.[1] Before we take him up, let us notice for a moment with what an easy even movement he glides along over the leaves of the sea-weed, now over the stony projections of the pool, now on the broad weeds again. On lifting the shell, we find that the fine, fleshy, apricot-coloured animal clings with considerable force to the weed; and on transferring it to a glass bottle, we get a better sight of the organ by which it maintains both its stability and its movements. The under-surface of the creature, then, forms a long, nearly parallel-sided sole, abruptly pointed behind, where it stretches to a considerable distance in the rear of the shell, and bounded in front by a slightly-thickened transverse rim, a little arched, and projecting on each side. This organ is the foot, and it is composed of muscular fibres elaborately interwoven, much as in the human tongue, whereby great versatility and power of motion are communicated to it; indeed, when in motion, it strongly reminds one of the human tongue.

Plate 1.
P. H. GOSSE, del. LEIGHTON, BROS.
DOG-WHELK. PELICAN’S FOOT. TOP. COWRY.

The sensitive and muscular foot of our captive has already taken hold of the glass side of its prison, and it is now smoothly mounting up it. With a lens you may see that though it is one undivided area, yet in the arrangement of its muscles, it is separated into two portions by a line which runs down the middle; and that these two sides move alternately. The muscles of the right half, for example, are moved a little onward, and take a fresh hold of the ground, while those of the left remain clinging; then the right half clings, while the left relaxes and advances a little beyond the right, and again clings, when the right makes its forward move. So that the effect is exactly that of two feet advancing by alternate steps; and if your own two feet were enclosed in one elastic stocking, your own progress would appear very much like that of the Trochus. Indeed, some shell-fishes not distantly allied to this, as the pretty little Pheasant-shell,[2] which I occasionally find among these rocks, really have the foot divided into two distinct and separate halves, in which this alternate motion is, of course, more obvious.

Looked at from above, we discern that this foot thickens towards the middle, where it is overlapped by a broad wing-like expansion on each side. This, for manifest reasons, is known by the name of the cloak or mantle. In all cases it performs important offices in the economy of the animal, as I shall presently describe; and in this instance we see it is adorned along its edges with certain lappets and long fleshy taper threads (called cirri), which wave vivaciously to and fro as the creature crawls. These are probably the seats of a delicate sense; perhaps receiving impressions analogous to those of touch, from the strokes they continually make on the surrounding fluid.

In front we see a distinct head, with a broad flat muzzle not altogether unlike that of an ox. On each side of the back part of this head, there is another long taper thread: these are called tentacles, but neither in form nor in structure can we discern any difference between these and the cirri that fringe the mantle. In all probability they are alike organs of a highly delicate sense of touch.

THE TOP’S EYES.