第 15 节
作者:
竹水冷 更新:2022-07-12 16:20 字数:9322
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 ciliae; till; having
sown its wild oats; it settled down in life; built itself a good
stone house; and became a landowner; or rather a glebae 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; (10) 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 ciliae
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 (11) 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 aeons: 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;〃 (12) which we picked up
just now on Paignton San