OPHIOCEPHALIDÆ, _Günther._

Ophiocephalus punctatus, _Bl._

Kelaartii, _Günth._

striatus, _Bl._

marulius, _Ham. Buch._

Channa orientalis, _Schn._

LABYRINTHICI, _Cuv._

Anabas oligolepis, _Bleek._

Polyacanthus signatus, _Günth._

PHARYNGOGNATHI.

Amphiprion Clarkii, _J. Benn._

Dascyllus aruanus, _C. & V._

trimaculatus, _Rüpp._

Glyphisodon septem-fasciatus, _C. & V._

Brownrigii, _Benn,_

coelestinus, _Sol._

Etroplus Suratensis, _Bl._

Julis lunaris _Linn._

decussatus, _W Benn._

formosus, _C.&V._

quadricolor. _Lesson._

dorsalis, _Quoy & Gaim._

aureomaculatus, _W. Benn._

Cellanicus, _E. Benn._

Finlaysoni, _C. & V._

purpureo-lineatus, _C. & V._

cingulum, _C. & V._

Gomphosus fuscus, _C. & V._

coeruleus, _Comm._

viridis, _W. Benn._

Scarus pepo, _W. Benn._

harid. _Forsk._

Tautoga fasciata, _Thunb._

Hemirhamphus Reynaldi, _C. & V._

Georgii _C.& V._

Exocoetus evolans. _Linn._

Belone annulata, _C. & V._

MALACOPTERYGII (ABDOMINALES).

Bagrus gulio, _Buch_.

albilabris, _C. & V._

Plotosus lineatus, _C. & V._

Barbus tor, _C. & V._

Nuria thermoicos, _C. & V._

Leuciscus dandia, _C. & V._

scalpellus, _C. & V._

Ceylonicus, _E. Benn_.

thermalis, _C. & V._

Cobitis thermalis, _C. & V._

Chirocentrus dorab, _Forsk_.

Elops saurus, _L._

Megalops cundinga, _Buch_.

Engraulis Brownii, _Gm_.

Sardinella leiogaster, _C. & V._

lineolata, _C. & V._

Neohowii.

Saurus myops, _Val_.

Saurida tombil, _Bl._

MALACOPTERYGII (SUB-BRANCHIATI).

Pleuronectes, _L._

MALACOPTERYGII (APODA).

Muræna.

LOPHOBRANCHI.

Syngnathus, _L._

PLECTOGNATHII.

Tetraodon ocellatus, _W. Benn_.

tepa, _Buch_.

argyropleura, _E. Bennett_.

argentatus, _Blyth_.

Balistes biaculeatus, _W. Benn_.

lineatus, _Bl._

Triacanthus biaculeatus, _W. Benn_.

Alutarius lævis, _Bl._

II. CARTILAGINOUS.

Pristis antiquorum, _Lath_.

cuspidatus, _Lath_.

pectinatus, _Lath_.

Chiloscyllium plagiosum, _Benn_.

Stegostoma fasciatum, _Bl._

Carcharias acutus, _Rüpp_.

Sphyrna zygæna, _L._

Rhynchobatus lævis, _Bl._

Trygon uarnak, _Forsk_.

Pteroplatea micrura, _Bl._

Tæniura lymna, _Forsk_.

Myliobatis Nieuhofii, _Bl._

Aëtobates narinari, _Bl._

* * * * *

NOTE (A.)

INSTANCES OF FISHES FALLING FROM THE CLOUDS IN INDIA.

(_From the Bombay Times,_ 1856.)

See Page 343.

The late Dr. Buist, after enumerating cases in which fishes were said to

have been thrown out from volcanoes in South America and precipitated

from clouds in various parts of the world, adduced the following

instances of similar occurrences in India. "In 1824," he says, "fishes

fell at Meerut, on the men of Her Majesty's 14th Regiment, then out at

drill, and were caught in numbers. In July, 1826, live fish were seen to

fall on the grass at Moradabad during a storm. They were the common

cyprinus, so prevalent in our Indian waters. On the 19th of February,

1830, at noon, a heavy fall of fish occurred at the Nokulhatty factory,

in the Daccah zillah; depositions on the subject were obtained from nine

different parties. The fish were all dead; most of them were large; some

were fresh, others were rotten and mutilated. They were seen at first in

the sky, like a flock of birds, descending rapidly to the ground; there

was rain drizzling, but no storm. On the 16th and 17th of May, 1833, a

fall of fish occurred in the zillah of Futtehpoor, about three miles

north of the Jumna, after a violent storm of wind and rain. The fish

were from a pound and a half to three pounds in weight, and of the same

species as those found in the tanks in the neighbourhood. They were all

dead and dry. A fall of fish occurred at Allahabad, during a storm in

May, 1835; they were of the chowla species, and were found dead and dry

after the storm had passed over the district. On the 20th of September,

1839, after a smart shower of rain, a quantity of live fish, about three

inches in length and all of the same kind, fell at the Sunderbunds,

about twenty miles south of Calcutta. On this occasion it was remarked

that the fish did not fall here and there irregularly over the ground,

but in a continuous straight line, not more than a span in breadth. The

vast multitudes of fish, with which the low grounds round Bombay are

covered, about a week or ten days after the first burst of the monsoon,

appear to be derived from the adjoining pools or rivulets, and not to

descend from the sky. They are not, so far as I know, found in the

higher parts of the island. I have never seen them, (though I have

watched carefully,) in casks collecting water from the roofs of

buildings, or heard of them on the decks or awnings of vessels in the

harbour, where they must have appeared had they descended from the sky.

One of the most remarkable phenomena of this kind occurred during a

tremendous deluge of rain at Kattywar, on the 25th of July, 1850, when

the ground around Rajkote was found literally covered with fish; some of

them were found on the tops of haystacks, where probably they had been

drifted by the storm. In the course of twenty-four successive hours

twenty-seven inches of rain fell, thirty-five fell in twenty-six hours,

seven inches within one hour and a half, being the heaviest fall on

record. At Poonah, on the 3rd of August, 1852, after a very heavy fall

of rain, multitudes of fish were caught on the ground in the

cantonments, full half a mile from the nearest stream. If showers of

fish are to be explained on the assumption that they are carried up by

squalls or violent winds, from rivers or spaces of water not far away

from where they fall, it would be nothing wonderful were they seen to

descend from the air during the furious squalls which occasionally occur

in June."

* * * * *

NOTE (B.)

CEYLON FISHES.

(_Memorandum by Professor Huxley._)

See Page 324.

The large series of beautifully coloured drawings of the fishes of

Ceylon, which has been submitted to my inspection, possesses an unusual

value for several reasons.

The fishes, it appears, were all captured at Colombo, and even had those

from other parts of Ceylon been added, the geographical area would not

have been very extended. Nevertheless there are more than 600 drawings,

and though it is possible that some of these represent varieties in

different stages of growth of the same species, I have not been able to

find definite evidence of the fact in any of those groups which I have

particularly tested. If, however, these drawings represent _six hundred_

distinct species of fish, they constitute, so far as I know, the largest

collection of fish from one locality in existence.

The number of known British fishes may be safely assumed to be less than

250, and Mr. Yarrell enumerates only 226, Dr. Cantor's valuable work on

Malayan fishes enumerates not more than 238, while Dr. Russell has

figured only 200 from Coromandel. Even the enormous area of the Chinese

and Japanese seas has as yet not yielded 800 species of fishes.

The large extent of the collection alone, then, renders it of great

importance: but its value is immeasurably enhanced by the two

circumstances,--_first_, that every drawing was made while the fish

retained all that vividness of colouring which becomes lost so soon

after its removal from its native element; and _secondly_, that when the

sketch was finished its subject was carefully labelled, preserved in

spirits, and forwarded to England, so that at the present moment the

original of every drawing can be subjected to anatomical examination,

and compared with already named species.

Under these circumstances, I do not hesitate to say that the collection

is one of the most valuable in existence, and might, if properly worked

out, become a large and secure foundation for all future investigation

into the ichthyology of the Indian Ocean.

It would be very hazardous to express an opinion as to the novelty or

otherwise of the species and genera figured without the study of the

specimens themselves, as the specific distinctions of fish are for the

most part based upon character--the fin-rays, teeth, the operculum, &c.,

which can only be made out by close and careful examination of the

object, and cannot be represented in ordinary drawings however accurate.

There are certain groups of fish, however, whose family traits are so

marked as to render it almost impossible to mistake even their

portraits, and hence I may venture, without fear of being far wrong,

upon a few remarks as to the general features of the ichthyological

fauna of Ceylon.

In our own seas rather less than a tenth of the species of fishes belong

to the cod tribe. I have not found one represented in these drawings,

nor do either Russell or Cantor mention any in the surrounding seas, and

the result is in general harmony with the known laws of distribution of

these most useful of fishes.

On the other hand, the mackerel family, including the tunnies, the

bonitas, the dories, the horse-mackerels, &c., which form not more than

one sixteenth of our own fish fauna, but which are known to increase

their proportion in hot climates, appear in wonderful variety of form

and colour, and constitute not less than one fifth of the whole of the

species of Ceylon fish. In Russell's catalogue they form less than one

fifth, in Cantor's less than one sixth.

Marine and other siluroid fishes, a group represented on the continent

of Europe, but doubtfully, if at all, in this country, constitute one

twentieth of the Ceylon fishes. In Russell's and Cantor's lists they

form about one thirtieth of the whole.

The sharks and rays form about one seventh of our own fish fauna. They

constitute about one tenth or one eleventh of Russell's and Cantor's

lists, while among these Ceylon drawings I find not more than twenty, or

about one thirtieth of the whole, which can be referred to this group of

fishes. It must be extremely interesting to know whether this

circumstance is owing to accident, or to the local peculiarities of

Colombo, or whether the fauna of Ceylon really is deficient in such

fishes.

The like exceptional character is to be noticed in the proportion of the

tribe of flat fishes, or _Pleuronectidæ_. Soles, turbots, and the like,

form nearly one twelfth of our own fishes. Both Cantor and Russell give

the flat fishes as making one twenty-second part of their collection,

while in the whole 600 Ceylon drawings I can find but five

_Pleuronectidæ_.

When this great collection has been carefully studied, I doubt not that

many more interesting distributional facts will be evolved.

* * * * *

Since receiving this note from Professor Huxley, the drawings in

question have been submitted to Dr. Gray, of the British Museum. That

eminent naturalist, after a careful analysis, has favoured me with the

following memorandum of the fishes they represent, numerically

contrasting them with those of China and Japan, so far as we are

acquainted with the ichthyology of those seas:--

CARTILAGINEA.

Ceylon. China and Japan.

Squali 12 15

Raiæ 19 20

Sturiones 0 1

OSTINOPTERYGII.

Plectognathi.

tetraodontidæ 10 21

balistidæ 9 19

Lophobranchii.

syngnathidæ 2 2

pegasidæ 0 3

Ctenobranchii.

lophidæ 1 3

Cyclopodi.

echeneidæ 0 1

cyclopteridæ 0 1

gobidæ 7 35

Percini.

callionymidæ 0 7

uranoscopidæ 0 7

cottidæ 0 13

triglidæ 11 37

polynemidæ 12 3

mullidæ 1 7

perecidæ 26 12

berycidæ 0 5

sillaginidæ 3 1

sciænidæ 19 13

hæmullinidæ 6 12

serranidæ 31 38

theraponidæ 8 20

cirrhitidæ 0 2

mænidiæ 37 25

sparidæ 16 17

acanthuridæ 14 6

chætodontidæ 25 21

fistularidæ 2 3

Periodopharyngi.

mugilidæ 5 7

anabantidæ 6 15

pomacentridæ 10 11

Pharyngognathi.

labridæ 16 35

scomberesocidæ 13 6

blenniidæ 3 8

Scomberina.

zeidæ 0 2

sphyrænidæ 5 4

scomberidæ 118 62

xiphlidæ 0 1

cepolidæ 0 5

Heterosomata.

platessoideæ 5 22

siluridæ 31 24

cyprinidæ 19 52

scopelinidæ 2 7

salmonidæ 0 1

clupeidæ 43 22

gadidæ 0 2

macruridæ 1 0

Apodes.

anguillidæ 8 12

murænidæ 8 6

sphagebranchidæ 8 10

* * * * *

NOTE (C).

ON THE BORA-CHUNG, OR "GROUND-FISH" OF BHOOTAN.

See P. 353.

In Bhootan, at the south-eastern extremity of the Himalayas, a fish is

found, the scientific name of which is unknown to me, but it is called

by the natives the _Bora-chung_, and by European residents the

"ground-fish of Bhootan." It is described in the _Journal of the Asiatic

Society of Bengal for_ 1839, by a writer (who had seen it alive), as

being about two feet in length, and cylindrical, with a thick body,

somewhat shaped like a pike, but rounder, the nose curved upwards, the

colour olive-green, with orange stripes, and the head speckled with

crimson.[1] This fish, according to the native story, is caught not in

the rivers in whose vicinity it is found, but "in perfectly dry places

in the middle of grassy jungle, sometimes as far as two miles from the

banks." Here, on finding a hole four or five inches in diameter, they

commence to dig, and continue till they come to water; and presently the

_bora-chung_ rises to the surface, sometimes from a depth of nineteen

feet. In these extemporised wells these fishes are found always in

pairs, and I when brought to the surface they glide rapidly over the

ground with a serpentine motion. This account appeared in 1839; but some

years later, Mr. Campbell, the Superintendent of Darjeeling, in a

communication to the same journal[2], divested the story of much of its

exaggeration, by stating, as the result of personal inquiry in Bhootan,

that the _bora-chung_ inhabits the jheels and slow-running streams near

the hills, but lives principally on the banks, into which it penetrates

from one to five or six feet. The entrance to these retreats leading

from the river into the bank is generally a few inches below the

surface, so that the fish can return to the water at pleasure. The mode

of catching them is by introducing the hand into these holes; and the

_bora-chungs_ are found generally two in each chamber, coiled

concentrically like snakes. It is not believed that they bore their own

burrows, but that they take possession of those made by land-crabs. Mr.

Campbell denies that they are more capable than other fish of moving on

dry ground. From the particulars given, the _bora-chung_ would appear to

be an _Ophiocephalus_, probably the _O. barka_ described by Buchanan, as

inhabiting holes in the banks of rivers tributary to the Ganges.

[Footnote 1: Paper by Mr. J.T. PEARSON, _Journ. Asiat. Soc. Beng._, vol.

viii p. 551.]

[Footnote 2: _Journ. Asiat. Soc. Beng._, vol. xi. p. 963.]

CHAP. XI.

SHELLS.

* * * * *

_Mollusca.--Radiata, &c._

Ceylon has long been renowned for the beauty and variety of the shells

which abound in its seas and inland waters, and in which an active trade

has been organised by the industrious Moors, who clean them with great

expertness, arrange them in satin-wood boxes, and send them to Colombo

and all parts of the island for sale. In general, however, these

specimens are more prized for their beauty than valued for their rarity,

though some of the "Argus" cowries[1] have been sold as high as _four

guineas_ a pair.

[Footnote 1: _Cypræa Argus_.]

One of the principal sources whence their supplies are derived is the

beautiful Bay of Venloos, to the north of Batticaloa, formed by the

embouchure of the Natoor river. The scenery at this spot is enchanting.

The sea is overhung by gentle acclivities wooded to the summit; and in

an opening between two of these eminences the river flows through a

cluster of little islands covered with mangroves and acacias. A bar of

rocks projects across it, at a short distance from the shore; and these

are frequented all day long by pelicans, that come at sunrise to fish,

and at evening return to their solitary breeding-places remote from the

beach. The strand is literally covered with beautiful shells in rich

profusion, and the dealers from Trincomalie know the proper season to

visit the bay for each particular description. The entire coast,

however, as far north as the Elephant Pass, is indented by little rocky

inlets, where shells of endless variety may be collected in great

abundance.[1] During the north-east monsoon a formidable surf bursts

upon the shore, which is here piled high with mounds of yellow sand; and

the remains of shells upon the water mark show how rich the sea is in

mollusca. Amongst them are prodigious numbers of the ubiquitous

violet-coloured _Ianthina_[2], which rises when the ocean is calm, and

by means of its inflated vesicles floats lightly on the surface.

[Footnote 1: In one of these beautiful little bays near Catchavelly,

between Trincomalie and Batticaloa, I found the sand within the wash of

the sea literally covered with mollusca and shells, and amongst others a

species of _Bullia_ (B. vittata, I think), the inhabitant of which, has

the faculty of mooring itself firmly by sending down its membranous foot

into the wet sand, where, imbibing the water, this organ expands

horizontally into a broad, fleshy disc, by which the animal anchors

itself, and thus secured, collects its food in the ripple of the waves.

On the slightest alarm, the water is discharged, the disc collapses into

its original dimensions, and the shell and its inhabitant disappear

together beneath the sand.]

[Illustration: BULLIA VITTATA]

[Footnote 2: _Ianthina communis_, Krause and _I. prolongata_, Blainv.]

[Illustration: IANTHINA.]

The trade in shells is one of extreme antiquity in Ceylon. The Gulf of

Manaar has been fished from the earliest times for the large chank

shell, _Turbinella_ _rapa_, to be exported to India, where it is still

sawn into rings and worn as anklets and bracelets by the women of

Hindustan. Another use for these shells is their conversion into wind

instruments, which are sounded in the temples on all occasions of

ceremony. A chank, in which the whorls, instead of running from left to

right, as in the ordinary shell, are reversed, and run from right to

left, is regarded with such reverence that a specimen formerly sold for

its weight in gold, but one may now be had for four or five pounds.

COSMAS INDICO-PLEUSTES, writing in the fifth century, describes a place

on the west coast of Ceylon, which he calls Marallo, and says it

produced "[Greek: kochlious]," which THEVENOT translates "oysters;" in

which case Marallo might be conjectured to be Bentotte, near Colombo,

which yields the best edible "oysters" in Ceylon.[1] But the shell in

question was most probably the chank, and Marallo was Mantotte, off

which it is found in great numbers.[2] In fact, two centuries later

Abouzeyd, an Arab, who wrote an account of the trade and productions of

India, speaks of these shells by the name they still bear, which he

states to be _schenek_[3]; but "schenek" is not an Arabic word, and is

merely an attempt to spell the local term, _chank_, in Arabic

characters.

[Footnote 1: COSMAS INDICO-PLEUSTES, in Thevenot's ed. t i. p. 21.]

[Footnote 2: At Kottiar, near Trincomalie, I was struck with the

prodigious size of the edible oysters, which were brought to us at the

rest-house. The shell of one of these measured a little more than eleven

inches in length, by half as many broad: thus unexpectedly attesting the

correctness of one of the stories related by the historians of

Alexander's expedition, that in India they had found oysters a foot

long. PLINY says: "In Indico mari Alexandri rerum auctores pedalia

inveniri prodidere."--_Nat. Hist._ lib. xxxii. ch. 31. DARWIN says, that

amongst the fossils of Patagonia, he found "a massive gigantic oyster,

sometimes even a foot in diameter."--_Nat. Voy._, ch. viii.]

[Footnote 3:--ABOUZEYD, _Voyages Arabes,_ &c., t. i. p. 6; REINAUD,

_Mémoire sur l'Inde,_ &c p. 222.]

BERTOLACCI mentions a curious local peculiarity[1] observed by the

fishermen in the natural history of the chank. "All shells," he says,

"found to the northward of a line drawn from a point about midway from

Manaar to the opposite coast (of India) are of the kind called _patty_,

and are distinguished by a short flat head; and all those found to the

southward of that line are of the kind called _pajel_, and are known

from having a longer and more pointed head than the former. Nor is there

ever an instance of deviation from this singular law of nature. The

_Wallampory_, or 'right-hand chanks,' are found of both kinds."

[Footnote 1: See also the _Asiatic Journal for_ 1827, p. 469.]

This tendency of particular localities to re-produce certain

specialities of form and colour is not confined to the sea or to the

instance of the chank shell. In the gardens which line the suburbs of

Galle in the direction of Matura the stems of the coco-nut and jak trees

are profusely covered with the shells of the beautiful striped _Helix

hamastoma_. Stopping frequently to collect them, I was led to observe

that each separate garden seemed to possess a variety almost peculiar to

itself; in one the mouth of every individual shell was _red_; in

another, separated from the first only by a wall, _black_; and in others

(but less frequently) _pure white_; whilst the varieties of external

colouring were equally local. In one enclosure they were nearly all red,

and in an adjoining one brown.[1]

[Footnote 1: DARWIN, in his _Naturalist's Voyage_, mentions a parallel

instance of the localised propagation of colours amoungst the cattle

which range the pasturage of East Falkland Island: "Round Mount Osborne

about half of some of the herds were mouse-coloured, a tint no common

anywhere else,--near Mount Pleasant dark-brown prevailed; whereas south

of Choiseul Sound white beasts with black heads and feet were

common."--Ch. ix. p. 192.]

A trade more ancient by far than that carried on in chanks, and

infinitely more renowned, is the fishery of pearls on the west coast of

Ceylon, bordering the Gulf of Manaar. No scene in Ceylon presents so

dreary an aspect as the long sweep of desolate shore to which, from time

immemorial, adventurers have resorted from the uttermost ends of the

earth in search of the precious pearls for which this gulf is renowned.

On approaching it from sea the only perceptible landmark is a building

erected by Lord Guildford, as a temporary residence for the Governor,

and known by the name of the "Doric," from the style of its

architecture. A few coco-nut palms appear next above the low sandy

beach, and presently are discovered the scattered houses which form the

villages of Aripo and Condatchy.

Between these two places, or rather between the Kalaar and Arrive river,

the shore is raised to a height of many feet, by enormous mounds of

shells, the accumulations of ages, the millions of oysters[1], robbed of

their pearls, having been year after year flung into heaps, that extend

for a distance of many miles.

[Footnote 1: It is almost unnecessary to say that the shell fish which

produces the true Oriental pearls is not an oyster, but belongs to the

genus Avicula, or more correctly, Meleagrina. It is the _Meleagrina

Margaritifera_ of Lamarck.]

During the progress of a pearl-fishery, this singular and dreary expanse

becomes suddenly enlivened by the crowds who congregate from distant

parts of India; a town is improvised by the construction of temporary

dwellings, huts of timber and cajans[1], with tents of palm leaves or

canvas; and bazaars spring up, to feed the multitude on land, as well as

the seamen and divers in the fleets of boats that cover the bay.

[Footnote 1: _Cajan_ is the local term for the plaited fronds of a

coco-nut.]

Sketches of the Natural History of Ceylon · 第 28 / 41 段