Being desirous of obtaining a specimen of fish so exhumed, I received from the Moodliar of Matura, A.B. Wickremeratne, a fish taken along with others of the same kind from a tank in which the water had dried up; it was found at a depth of a foot and a half where the mud was still moist, whilst the surface was dry and hard. The fish which the moodliar sent to me is an Anabas, closely resembling the Perca scandens of Daldorf; but on minute examination it proves to be a species unknown in India, and hitherto found only in Boreno and China. It is the A. oligolepis of Bleek.
But the faculty of becoming torpid at such periods is not confined in Ceylon to the crocodile sand fishes;—it is also possessed by some of the fresh-water mollusca and aquatic coleoptera. One of the former, the Ampullaria glauca, is found in still water in all parts of the island, not alone in the tanks, but in rice-fields and the watercourses by which they are irrigated. When, during the dry season, the water is about to evaporate, it burrows and conceals itself3551 till the returning rains restore it to activity, and reproduce its accustomed food. There, at a considerable depth in the soft mud, it deposits a bundle of eggs with a white calcareous shell, to the number of one hundred or more in each group. The Melania Paludina in the same way retires during the droughts into the muddy soil of the rice lands; and it can only be by such an instinct that this and other mollusca are preserved when the tanks evaporate, to re-appear in full growth and vigour immediately on the return of the rains.3552
Dr. John Hunter3561 has advanced an opinion that hybernation, although a result of cold, is not its immediate consequence, but is attributable to that deprivation of food and other essentials which extreme cold occasions, and against the recurrence of which nature makes a timely provision by a suspension of her functions. Excessive heat in the tropics produces an effect upon animals and vegetables analogous to that of excessive cold in northern regions, and hence it is reasonable to suppose that the torpor induced by the one may be but the counterpart of the hybernation which results from the other. The frost that imprisons the alligator in the Mississippi as effectually cuts it off from food and action as the drought which incarcerates the crocodile in the sun-burnt clay of a Ceylon tank. The hedgehog of Europe enters on a period of absolute torpidity as soon as the inclemency of winter deprives it of its ordinary supply of slugs and insects; and the tenrec3562 of Madagascar, its tropical representative, exhibits the same tendency during the period when excessive heat produces in that climate a like result.
The descent of the Ampullaria, and other fresh-water molluscs, into the mud of the tanks, has its parallel in the conduct of the Bulimi and Helices on land. The European snail, in the beginning of winter, either buries itself in the earth or withdraws to some crevice or overarching stone to await the returning vegetation of spring. So, in the season of intense heat, the Helix Waltoni of Ceylon, and others of the same family, before retiring under cover, close the aperture of their shells with an impervious epiphragm, which effectually protects their moisture and juices from evaporation during the period of their æstivation. The Bulimi of Chili have been found alive in England in a box packed in cotton after an interval of two years, and the animal inhabiting a land-shell from Suez, which was attached to a tablet and deposited in the British Museum in 1846, was found in 1850 to have formed a fresh epiphragm, and on being immersed in tepid water, it emerged from its shell. It became torpid again on the 15th November, 1851, and was found dead and dried up in March, 1852.3571 But exceptions serve to prove the accuracy of Hunter's opinion almost as strikingly as accordances, since the same genera of animals that hybernate in Europe, where extreme cold disarranges their oeconomy, evince no symptoms of lethargy in the tropics, provided their food be not diminished by the heat. Ants, which are torpid in Europe during winter, work all the year round in India, where sustenance is uniform.3572 The shrews of Ceylon (Sorex montanus and S. ferrugineus of Kelaart), like those at home, subsist upon insects, but as they inhabit a region where the equable temperature admits of the pursuit of their prey at all seasons of the year, unlike those of Europe, they never hybernate. A similar observation applies to bats, which are dormant during a northern winter when insects are rare, but never become torpid in any part of the tropics. The bear, in like manner, is nowhere deprived of its activity except when the rigour of severe frost cuts off its access to its accustomed food. On the other hand, the tortoise, which in Venezuela immerses itself in indurated mud during the hot months shows no tendency to torpor in Ceylon, where its food is permanent; and yet it is subject to hybernation when carried to the colder regions of Europe.
To the fish in the detached tanks and pools when the heat, by exhausting the water, deprives them at once of motion and sustenance, the practical effect must be the same as when the frost of a northern winter encases them in ice. Nor is it difficult to believe that they can successfully undergo the one crisis when we know beyond question that they may survive the other.3581
Hot-water Fishes.—Another incident is striking in connection with the fresh-water fishes of Ceylon. I have described elsewhere the hot springs of Kannea3582, in the vicinity of Trincomalie, the water in which flows at a temperature varying at different seasons from 85° to 115°. In the stream formed by these wells M. Reynaud found and forwarded to Cuvier two fishes which he took from the water at a time when his thermometer indicated a temperature of 37° Reaumur, equal to 115° of Fahrenheit. The one was an Apogon, the other an Ambassis, and to each, from the heat of its habitat, he assigned the specific name of "thermalis."3591
In the following list, the Acanthopterygian fishes of Ceylon has been prepared for me by Dr. G&ÜNTHER, and will be found the most complete which has appeared of this order. I am also indebted to him for the correction of the list of Malacopterygians, which I hope ere long to render still more extended, as well as that of the Cartilaginous fishes.
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."
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 | |
| 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 | |
| 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 |
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.3681 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 journal3682, 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 3231: (return)A Selection of the most Remarkable and Interesting Fishes found on the Coast of Ceylon. By J.W. BENNETT, Esp. London, 1830.
Footnote 3243: (return)These facts serve to explain the story told by the friar ODORIC of Friuli, who visited Ceylon about the year 1320 A.D., and says there are "fishes in those seas that come swimming towards the said country in such abundance that for a great distance into the sea nothing can be seen but the backs of fishes, which casting themselves on the shore, do suffer men for the space of three daies to come and to take as many of them as they please, and then they return again into the sea."—Hakluyt, vol. ii. p. 57.
Footnote 3251: (return)There are other species of Sardine found at Ceylon besides the S. Neohowii; such as the S. lineolata, Cuv. and Val. and the S. leiogaster, Cuv. and Val. xx. 270, which was found by M. Reynaud at Trincomalie. It occurs also off the coast of Java. Another Ceylon fish of the same group, a Clupea, is known as the "poisonous sprat;" the bonito (Thynnus affinis, Cang.), the kangewena, or unicorn fish (Balistes?), and a number of others, are more or less in bad repute from the same imputation.
Footnote 3252: (return)Two other species are found in the Ceylon waters, P. cuspidatus and P. pectinatus.
Footnote 3271: (return)Raja narinari, Bl. Schn. p. 361. Aëtobates narinari, Müll. und Henle., Plagiost. p. 179.
Footnote 3281: (return)ÆLIAN tells a story of a ship in the Black Sea, the bottom of which was penetrated by the sword of a Xiphias (L. xiv. c. 23); and PLINY (L. xxxii. c. 8) speaks of a similar accident on the coast of Mauritania. In the British Museum there is a specimen of a plank of oak, pierced by a sword-fish, and still retaining the broken weapon.
Footnote 3303: (return)The fish from which this drawing of the Cheironectes was made, was taken near Colombo, and from the peculiarities which it presents it is in all probability a new and undescribed species. Dr. G&ÜNTHER has remarked, that in it, whilst the first and second dorsal spines are situated as usual over the eye (and form, one the angling bait of the fish, the other the crest above the nose), the third is at an unusual distance from the second, and is not separated, as in the other species, from the soft fin by a notch.
Footnote 3321: (return)Cuv. and VALEN., Hist. Nat. des Poissons, tom. xi. p. 249. It is identical with S. tridactylus, Schn.
Footnote 3322: (return)Pterois muricata, Cuv. and Val. iv. 363. Scarpæna miles, Bennett; named, by the Singhalese, "Maharata-gini," the Great Red Fire, a very brilliant red species spotted with black. It is very voracious, and is regarded on some parts of the coast as edible, while on others it is rejected.
Footnote 3323: (return)Glyphisodon Brownriggii, Cuv. and Val. v. 484; Choetodon Brownriggii, Bennett. A very small fish about two inches long, called Kaha hartikyha by the natives. It is distinct from Choetodon, in which BENNETT placed it. Numerous species of this genus are scattered throughout the Indian Ocean. It derives its name from the fine hair-like character of its teeth. They are found chiefly among coral reefs, and, though eaten, are not much esteemed. In the French colonies they are called "Chauffe-soleil." One species is found on the shores of the New World (G. saxatalis), and it is curious that Messrs. QUOY and GAIMARD found this fish at the Cape de Verde Islands in 1827.
Footnote 3331: (return)This fish has a sharp round spine on the side of the body near the tail; a formidable weapon, which is generally partially concealed within a scabbard-like incision. It raises or depresses this spine at pleasure. The fish is yellow, with several nearly parallel blue stripes on the back and sides; the belly is white, the tail and fins brownish green, edged with blue.
It is found in rocky places; and according to BENNETT, who has figured it in his second plate, it is named Seweya. It has been known, however, to all the old ichthyologists, Valentyn, Renard, Seba, Artedi, and has been named Chætodon lineatus, by Linné. It is scarce on the southern coast of Ceylon.
Footnote 3351: (return)The fish from the Sea of Pinang, described by Dr. CANTOR with this name (Catal. Mal. Fish. p. 42), is again different, and belongs to a third species.
Footnote 3353: (return)This is the fish figured by BENNETT as Sparus pepo. Fishes of Ceylon, Plate xxviii.
Footnote 3354: (return)In extenuation of the little that is known of the fresh-water fishes of Ceylon, it may be observed that very few of them are used at table by Europeans, and there is therefore no stimulus on the part of the natives to catch them. The burbot and grey mullet are occasionally eaten, but they taste of mud, and are not in request.
Some years ago the experiment was made, with success, of introducing into Mauritius the Osphromenus olfax of Java, which has also been taken to French Guiana. In both places it is now highly esteemed as a fish for table. As it belongs to a family which possesses the faculty, hereafter alluded to, of surviving in the damp soil after the subsidence of the water in the tanks and rivers, it might with equal advantage be acclimated in Ceylon. It grows to 20 lbs. weight and upwards.
Footnote 3371: (return)Holocentrus quadrilineatus, Bloch. It is allied to Helotes polytoenia, Bleek., from Halmaheira which it can be readily distinguished by having only five or six blackish longitudinal bands, the black humeral spot being between the first and second; another blackish blotch is in the spinous dorsal fin. There are two specimens in the British Museum collection, one of which has recently arrived from Amoy; of the other the locality is unknown. See G&ÜNTHER, Acanthopt. Fishes, vol. i. p. 282, where mention of the black humeral spot has been omitted.
Footnote 3392: (return)Knox's Historical Relation of Ceylon, Part i. ch. vii. The occurrence of fish in the most unlooked-for situations, is one of the mysteries of other eastern countries as well as Ceylon and India. In Persia irrigation is carried on to a great extent by means of wells sunk in line in the direction in which it is desired to lead a supply of water, and these are connected by channels, which are carefully arched over to protect them from evaporation. These kanats, as they are called, are full of fish, although neither they nor the wells they unite have any connection with streams or lakes.
Footnote 3411: (return)As anglers, the native Singhalese exhibit little expertness; but for fishing the rivers, they construct with singular ingenuity fences formed of strong stakes, protected by screens of ratan, that stretch diagonally across the current; and along these the fish are conducted into a series of enclosures from which retreat is impracticable. MR. LAYARD, in the Magazine of Natural History for May, 1853, has given a diagram of one of these fish "corrals," as they are called, of which a copy is shown on the next page.
Footnote 3421: (return)I had an opportunity, on one occasion only, of witnessing the phenomenon which gives rise to this popular belief. I was driving in the cinnamon gardens near the fort of Colombo, and saw a violent but partial shower descend at no great distance before me. On coming to the spot I found a multitude of small silvery fish from one and a half to two inches in length, leaping on the gravel of the high road, numbers of which I collected and brought away in my palankin. The spot was about half a mile from the sea, and entirely unconnected with any watercourse or pool.
Mr. Whiting, who was many years resident in Trincomadie, writes me that he "had often been told by the natives on that side of the island that it sometimes rained fishes; and on one occasion" (he adds) "I was taken by them, in 1849, to a field at the village of Karrancotta-tivo, near Batticaloa, which was dry when I passed over it in the morning, but, had been covered in two hours by sudden rain to the depth of three inches, in which there was then a quantity of small fish. The water had no connection with any pond or stream whatsoever." Mr. Cripps, in like manner, in speaking of Galle, says: "I have seen in the vicinity of the fort, fish taken from rain-water that had accumulated in the hollow parts of land that in the hot season are perfectly dry and parched. The place is accessible to no running stream or tank; and either the fish or the spawn from which they were produced, must of necessity have fallen with the rain."
Mr. J. PRINSEP, the eminent secretary to the Asiatic Society of Bengal, found a fish in the pulviometer at Calcutta, in 1838.—Journ. Asiat. Soc. Bengal, vol. vi. p. 465.
A series of instances in which fishes have been found on the continent of India under circumstances which lead to the conclusion that they must have fallen from the clouds, have been collected by the late Dr. BUIST of Bombay, and will be found in the appendix to this chapter.
Footnote 3431: (return)YARRELL, History of British Fishes, introd. vol. i. p. xxvi. This too was the opinion of Aristotle, De Respiratione, c. ix.
Footnote 3472: (return)Sir R. Schomburgk's Fishes of Guiana, vol. i. pp. 113, 151, 160. Another migratory fish was found by Bose very numerous in the fresh waters of Carolina and in ponds liable to become dry in summer. When captured and placed on the ground, "they always, directed themselves towards the nearest water, which they could not possibly see, and which they must have discovered by some internal index. They belong to the genus Hydrargyra and are called Swampines.—KIRBY, Bridgewater Treatise, vol. i. p. 143.
Eels kept in a garden, when August arrived (the period at which instinct impels them to go to the sea to spawn) were in the habit of leaving the pond, and were invariably found moving eastward in the direction of the sea.—YARRELL, vol. ii. p. 384. Anglers observe that fish newly caught, when placed out of sight of water, always struggle towards it to escape.
Footnote 3484: (return)Annals and Mag. of Nat. Hist., May, 1853, p. 390. Mr. Morris, the government-agent of Trincomalie, writing to me on this subject in 1856, says—"I was lately on duty inspecting the kind of a large tank at Nade-cadua, which, being out of repair, the remaining water was confined in a small hollow in the otherwise dry bed. Whilst there heavy rain came on, and, as we stood on the high ground, we, observed a pelican on the margin of the shallow pool gorging himself; our people went towards him and raised a cry of fish! fish! We hurried down, and found numbers of fish struggling upwards through the grass in the rills formed by the trickling of the rain. There was scarcely water enough to cover them, but nevertheless they made rapid progress up the bank, on which our followers collected about two bushels of them at a distance of forty yards from the tank. They were forcing their way up the knoll, and, had they not been intercepted first by the pelican and afterwards by ourselves, they would in a few minutes have gained the highest point and descended on the other side into a pool which formed another portion of the tank. They were chub, the same as are found in the mud after the tanks dry up." In a subsequent communication in July, 1857, the same gentleman says—"As the tanks dry up the fish congregate in the little pools till at last you find them in thousands in the moistest parts of the beds, rolling in the blue mud which is at that time about the consistence of thick gruel."
"As the moisture further evaporates the surface fish are left uncovered, and they crawl away in search of fresh pools. In one place I saw hundreds diverging in every direction, from the tank they had just abandoned to a distance of fifty or sixty yards, and still travelling onwards. In going this distance, however, they must have used muscular exertion sufficient to have taken them half a mile on level ground, for at these places all the cattle and wild animals of the neighbourhood had latterly come to drink; so that the surface was everywhere indented with footmarks in addition to the cracks in the surrounding baked mud, into which the fish tumbled in their progress. In those holes which were deep and the sides perpendicular they remained to die, and were carried off by kites and crows."
"My impression is that this migration takes place at night or before sunrise, for it was only early in the morning that I have seen them progressing, and I found that those I brought away with me in chatties appeared quiet by day, but a large proportion managed to get out of the chatties at night—some escaped altogether, others were trodden on and killed."
"One peculiarity is the large size of the vertebral column, quite disproportioned to the bulk of the fish. I particularly noticed that all in the act of migrating had their gills expanded."
Footnote 3501: (return)Transactions Linn. Soc. vol. iii. p. 63. It is remarkable, however, that this discovery of Daldorf, which excited so great an interest in 1791, had been anticipated by an Arabian voyager a thousand years before. Abou-zeyd, the compiler of the remarkable MS. known since Renaudot's translation by the title of the Travels of the Two Mahometans, states that Suleyman, one of his informants, who visited India at the close of the ninth century, was told there of a fish which, issuing from the waters, ascended the coco-nut palms to drink their sap, and returned to the sea. "On parle d'un poisson de mer qui, sortant de l'eau, monte sur la cocotier et boit le suc de la plante; ensuite il retourne á la mer." See REINAUD, Rélations des Voyages faits par les Arabes et Persans dans le neuvième siècle, tom. i. p, 21, tom. ii. p. 93.
Footnote 3502: (return)Kirby says that it is "in pursuit of certain crustaceans that form its food" (Bridgewater Treatise, vol i. p. 144); but I am not aware of any crustaceans in the island which ascend the palmyra or feed upon its fruit. The Birgus latro, which inhabits Mauritius, and is said to climb the coco-nut for this purpose, has not been observed in Ceylon.
Footnote 3511: (return)This assertion must be qualified by a fact stated by Mr. E.A. Layard, who mentions that on visiting one of the fishing stations on a Singhalese river, where the fish are caught in staked enclosures, as described at p. 342, and observing that the chambers were covered with netting, he asked the reason, and was told "that some of the fish climbed up the sticks and got over."—Mag. Nat. Hist, for May 1823, p. 390-1.
Footnote 3512: (return)Strange accidents have more than once occurred at Ceylon arising from the habit of the native anglers; who, having neither baskets nor pockets in which to place what they catch, will seize a fish in their teeth whilst putting fresh bait on their hook. In August, 1853, a man was carried into the Pettah hospital at Colombo, having a climbing perch, which he thus attempted to hold, firmly imbedded in his throat. The spines of its dorsal fin prevented its descent, whilst those of the gill-covers equally forbade its return. It was eventually extracted by the forceps through an incision in the oesophagus, and the patient recovered. Other similar cases have proved fatal.
Footnote 3522: (return)This statement will be found in QUATREMERE'S Mémoires sur l'Egypte, tom. i. p. 17, on the authority of Abdullah ben Ahmed ben Solaim Assouany, in his History of Nubia, "Simon, héritier présomptif du royanme d'Alouah, m'a assuré que l'on trouve, dans la vase qui couvre fond de cette rivière, un grand poisson sans écailles, qui ne ressemble en rien aux poissons du Nil, et que, pour l'avoir, il faut creuser à une toise et plus de profondeur." To this passage, there is appended this note:—"Le patriarche Mendes, cité par Legrand (Relation Hist. d' Abyssinie, du P. LOBO, p. 212-3) rapporte que le fleuve Mareb, après avoir arrosé une étendue de pays considérable, se perd sous terre; et que quand les Portugais faisaient la guerre dans ce pays, ils fouilloient dans le sable, et y trouvoient de la bonne eau et du ban poisson. An rapport de l'auteur de l' Ayin Akbery (tom. ii, p. 146, ed. 1800), dans le Soubah do Caschmir, pres du lieu nommé Tilahmoulah, est une grande pièce de terre qui est inondée pendant la saison des pluies. Lorsque les eaux se sont évaporées, et que la vase est presque séche, les habitans prennant des bâtons d'environ une aune do long, qu'ils enfoncent dans la vase, et ils y trouvent quantité de grands et petits poissons." In the library of the British Museum there is an unique MS. of MANOEL DE ALMEIDA, written in the sixteenth century, from which Balthasar Tellec compiled his Historia General de Ethiopia alta, printed at Coimbra in 1660, and in it the above statement of Mendes is corroborated by Almeida, who says that he was told by João Gabriel, a Creole Portuguese, born in Abyssinia, who had visited the Mareb, and who said that the "fish were to be found everywhere eight or ten palms down, and that he had eaten of them."
Footnote 3531: (return)See Paper "on some Species of Fishes and Reptiles in Demerara," by J. HANDCOCK, Esq., M.D., Zoological Journal, vol. iv. p. 243.
Footnote 3532: (return)A curious account of the borachung or "ground fish" of Bhootan, will be found in Note (C.) appended to this chapter.
Footnote 3551: (return)A knowledge of this fact was turned to prompt account by Mr. Edgar S. Layard, when holding a judicial office at Point Pedro in 1849. A native who had been defrauded of his land complained before him of his neighbour, who, during his absence, had removed their common landmark, diverting the original watercourse and obliterating its traces by filling it up to a level with the rest of the field. Mr. Layard directed a trench to be sunk at the contested spot, and discovering numbers of the Ampullaria, the remains of the eggs, and the living animal which had been buried for months, the evidence was so resistless as to confound the wrong-doer, and terminate the suit.
Footnote 3552: (return)For a similar fact relative to the shells and water beetles in the pools near Rio Janeiro, see DARWIN'S Nat. Journal, ch. v. p. 99. BENSON, in the first vol. of Gleanings of Science, published at Calcutta in 1829, describes a species of Paludina found in pools, which are periodically dried up in the hot season but reappear with the rains, p. 363. And in the Journal of the Asiatic Society of Bengal for Sept. 1832, Lieut. HUTTON, in a singularly interesting paper, has followed up the same subject by a narrative of his own observations at Mirzapore, wherein June, 1832, after a few heavy showers of rain, that formed pools on the surface of the ground near a mango grove, he saw the Paludinæ issuing from the ground, "pushing aside the moistened earth and coming forth from their retreats; but on the disappearance of the water not one of them was to be seen above ground. Wishing to ascertain what had become of them he turned up the earth at the base of several trees, and invariably found the shells buried from an inch to two inches below the surface." Lieut. Hutton adds that the Ampullariæ and Planorbes, as well as the Paludinæ are found in similar situations during the heats of the dry season. The British Pisidea exibit the same faculty (see a monograph in the Camb. Phil. Trans. vol. iv.). The fact is elsewhere alluded to in the present work of the power possessed by the land leech of Ceylon of retaining vitality even after being parched to hardness during the heat of the rainless season. LYELL mentions the instance of some snails in Italy which, when they hybernate, descend to the depth of five feet and more below the surface. Princip. of Geology, &c, p. 373.
Footnote 3571: (return)Annals of Natural History, 1860. See Dr. BAIRD'S Account of Helix desertorum; Excelsior, &c., ch. i. p. 345.
Footnote 3572: (return)Colonel SKYES has described in the Entomological Trans. the operations of an ant in India which lays up a store of hay against the rainy season.
Footnote 3581: (return)YARRELL, vol. i. p. 364, quotes the authority of Dr. J. Hunter in his Animal Oeconomy, that fish, "after being frozen still retain so much of life as when thawed to resume their vital actions;" and in-the same volume (Introd. vol. i. p. xvii.) he relates from JESSE'S Gleanings in Natural History, the story of a gold fish (Cyprinus auratus), which, together with the a marble basin, was frozen into one solid lump of ice, yet, on the water being thawed, the fish became as lively as usual. Dr. RICHARDSON in the third vol of his Fauna Borealis Americana, says the grey sucking carp, found in the fur countries of North America, may be frozen and thawed again without being killed in the process.
Footnote 3591: (return)CUV. and VAL., vol. iii. p. 363. In addition to the two fishes above named, a loche Cobitis thermalis, and a carp, Nuria thermoicos, were found in the hot-springs of Kannea, at a heat 40° Cent., 114° Fahr., and a roach, Leuciscus thermalis, when the thermometer indicated 50° Cent, 122° Fahr.—Ib. xviii. p. 59, xvi. p. 182, xvii. p. 94. Fish have been taken from a hot spring at Pooree when the thermometer stood at 112° Fahr., and as they belonged to a carnivorous genus, they must have found prey living in the same high temperature.—Journ. Asiatic Soc. of Beng. vol. vi. p. 465. Fishes have been observed in a hot spring at Manila which raises the thermometer to 187°, and in another in Barbary, the usual temperature of which is 172°; and Humboldt and Bonpland, when travelling in South America, saw fishes thrown up alive from a volcano, in water that raised the temperature to 210°, being two degrees below the boiling point. PATTERSON'S Zoology, Pt. ii. p. 211; YARRELL'S History of British Fishes, vol. i. In. p. xvi.