MAN favours wonders;" and this delight is almost endlessly exemplified in the stories of strange Fishes—of preternatural size and odd forms, which are to be found in their early history. In our present Talk we do not aim at re-assembling these olden tales, but propose rather to glance at recent accessions to our acquaintance with the study of Fish-life, and a few modern instances of the class of wonders.

Fishes, like all other animals, have a very delicate sense of the equilibrial position of their bodies. They endeavour to counteract all change in their position by means of movements partly voluntary and partly instinctive. These latter appear in a very remarkable manner in the eye; and they are so constant and evident in fishes while alive, that their absence is sufficient to indicate the death of the animal. The equilibrium of the fish, its horizontal position, with the back upwards, depends solely on the action of the fins, and principally that of the vertical fins. The swimming-bladder may enable a fish to increase or diminish its specific gravity. By compressing the air contained in it, the fish descends in the water; it rises by releasing the muscles which produced the compression. By compressing more or less the posterior or anterior portion of the bladder, the animal, at pleasure, can make the anterior or posterior half of its body lighter; it can also assume an oblique position, which permits an ascending or descending movement in the water.

There is a small fish found in the rivers of the Burmese Empire, which, on being taken out of the water, has the power of blowing itself up to the shape of a small round ball, but its original shape is resumed as soon as it is returned to the river.

Mr. St. John, in his "Tour in Eastern Lanarkshire," gives some curious instances of fish changing colour, which takes place with surprising rapidity. Put a living black burn Trout into a white basin of water, and it becomes, within half an hour, of a light colour. Keep the fish living in a white jar for some days, and it becomes absolutely white; but put it into a dark-coloured or black vessel, and although on first being placed there the white-coloured fish shows most conspicuously on the black ground, in a quarter of an hour it becomes as dark-coloured as the bottom of the jar, and consequently difficult to be seen. No doubt this facility of adapting its colour to the bottom of the water in which it lives, is of the greatest service to the fish in protecting it from its numerous enemies. All anglers must have observed, that in every stream the Trout are very much of the same colour as the gravel or sand on which they live: whether this change of colour is a voluntary or involuntary act on the part of the fish, the scientific must determine.

Anglers of our time have proved that Tench croak like frogs; Herrings cry like mice; Gurnards grunt like hogs; and some say the Gurnard makes a noise like a cuckoo, from which he takes one of his country names. The Maigre, a large sea-fish, when swimming in shoals, utters a grunting or piercing noise, that may be heard from a depth of twenty fathoms.

M. DufossÉ asserts that facts prove that nature has not refused to all fishes the power of expressing their instinctive sensations by sounds, but has not conferred on them the unity of mechanism in the formation of sonorous vibrations as in other classes of vertebrated animals. Some fishes, he says, are able to emit musical tones, engendered by a mechanism in which the muscular vibration is the principal motive power; others possess the faculty of making blowing sounds, like those of certain reptiles; and others can produce the creaking noise resembling that of many insects. These phenomena M. DufossÉ has named "Fish-noise."

The River Plate swarms with fish, and is the habitat of one possessed of a very sonorous voice, like that found in the River Borneo—the account of which is quoted by Dr. Buist from the Journal of the Samarang; and there is similar testimony of a loud piscatory chorus being heard on board H.M.S. Eagle, anchored, in 1845-6, about three miles from Monte Video, during the night.

That fishes hear has been doubted, although John Hunter was of this opinion, and has been followed by many observers. When standing beside a person angling, how often is the request made not to make a noise, as that would alarm the fish. On the other hand, the Chinese drive the fish up to that part of the river where their nets are ready to capture them by loud yells and shouts, and the sound of gongs; but old Æsop writes of a fisherman who caught no fish because he alarmed them by playing on his flute while fishing. In Germany the Shad is taken by means of nets, to which bows of wood, hung with a number of little bells, are attached in such a manner as to chime in harmony when the nets are moved. The Shad, when once attracted by the sound, will not attempt to escape while the bells continue to ring. Ælian says the Shad is allured by castanets. Macdiarmid, who declares that fishes hear as well as see, relates that an old Codfish, the patriarch of the celebrated fish-pond at Logan, "answered to his name; and not only drew near, but turned up his snout most beseechingly when he heard the monosyllable 'Tom;' and that he evidently could distinguish the voice of the fisherman who superintended the pond, and fed the fish, from that of any other fisherman." In the "Kaleidoscope" mention is made of three Trout in a pond near the powder-mills at Faversham, who were so tame as to come at the call of the person accustomed to feed them. Izaak Walton tells of a Carp coming to a certain part of a pond to be fed "at the ringing of a bell, or the beating of a drum;" and Sir John Hawkins was assured by a clergyman, a friend of his, that at the Abbey of St. Bernard, near Antwerp, he saw a Carp come to the edge of the water to be fed, at the whistle of the person who fed it. The Carp at Fontainebleau, inhabiting the lake adjoining the Imperial Palace, are of great size, and manifest a curious instinct. A Correspondent of the "AthenÆum" remarks:—

"Enjoying entire immunity from all angling arts and lures, the Fontainebleau Carp live a life of great enjoyment, marred only, we imagine, by their immense numbers causing the supply of food to be somewhat below their requirements. It is not, however, very easy to define what a Carp's requirements in the form of pabulum are, as he is a voracious member of the ichthyological family, eating whenever he has an opportunity until absolutely surfeited. His favourite food consists of vegetable substances masticated by means of flat striated teeth, which work with a millstone kind of motion against a singular process of the lower part of the skull covered with horny plates. When this fish obtains an abundant supply of food it grows to an enormous size. Several continental rivers and lakes are very congenial to Carp, and especially the Oder, where this fish occasionally attains the enormous weight of 60 lb. It is not probable that any Carp in the lake at Fontainebleau are so large as this; but there are certainly many weighing 50 lb., patriarchs of their kind, which, though olive-hued in their tender years, are now white with age. That the great size of these fish is due to ample feeding is, we think, evident, and, as we shall see presently, it is the large fish that are the best fed. During many years the feeding of the Carp at Fontainebleau has been a favourite Court pastime. But it is from the visitors who frequent Fontainebleau during a great part of the year that the Carp receive their most bountiful rations. For big Carp have an enormous swallow, soft penny rolls being mere mouthfuls, bolted with ostrich-like celerity. So to prevent the immediate disappearance of these bonnes bouches, bread, in the form of larger balls than the most capacious Carp can take into his gullet, is baked until it becomes as hard as biscuit, and with these balls the Carp are regailed. Throw one into the lake, and you will quickly have an idea of the enormous Carp population it contains. For no sooner does the bread touch the water than it is surrounded by hundreds of these fish, which dart to it from all sides. And now, if you look attentively, you will witness a curious display of instinct, which might almost take a higher name. Conscious, apparently, of their inability to crush these extremely hard balls, the Carp combine with surprising unanimity to push them to that part of the lake with their noses where it is bounded by a wall, and when there they butt at them, until at last their repeated blows and the softening effect of the water causes them to yield and open. And now you will see another curious sight. While shoals of Carp have been pounding away at the bread-balls, preparing them for being swallowed, some dozen monsters hover round, indifferent, apparently, to what is passing. But not so, for no sooner is the bread ready for eating, than two or three of these giants, but more generally one—the tyrant, probably, of the lake—rush to the prize, cleaving the shoals of smaller Carp, and shouldering them to the right and left, seize the bread with open jaws, between which it quickly disappears."

Some of the finest and oldest Carp are found in the windings of the Spree, in the tavern-gardens of Charlottenburg, the great resort of strollers from Berlin. Visitors are in the habit of feeding them with bread, and collect them together by ringing a bell, at the sound of which shoals of the fish may be seen popping their noses upwards from the water.

The affection of fishes has only been properly understood of late years. It might be supposed that little natural affection existed in this cold-blooded race; and, in fact, fishes constantly devour their own eggs, and, at a later period, their own young, without compunction or discrimination. Some few species bear their eggs about with them until hatched. This was long thought to be the utmost extent of care which fishes lavished on their young; but Dr. Hancock has stepped in to rescue at least one species from this unmerited charge. "It is asserted," he says, "by naturalists, that no fishes are known to take any care of their offspring. Both species of Hassar mentioned below, however, make a regular nest, in which they lay their eggs in a flattened cluster, and cover them over most carefully. Their care does not end here; they remain by the side of the nest till the spawn is hatched, with as much solicitude as a hen guards her eggs, both the male and female Hassar, for they are monogamous, steadily watching the spawn and courageously attacking the assailant. Hence the negroes frequently take them by putting their hands into the water close to the nest, on agitating which the male Hassar springs furiously at them, and is thus captured. The roundhead forms its nest of grass, the flathead of leaves. Both, at certain seasons, burrow in the bank. They lay their eggs only in wet weather. I have been surprised to observe the sudden appearance of numerous nests in a morning after rain occurs, the spot being indicated by a bunch of froth which appears on the surface of the water over the nest. Below this are the eggs, placed on a bunch of fallen leaves or grass, which they cut and collect together. By what means this is effected seems rather mysterious, as the species are destitute of cutting-teeth. It may, possibly, be by the use of their arms, which form the first ray of the pectoral fin."

There is another operation by fishes, which seems to require almost equal experience. Professor Agassiz, while collecting insects along the shores of Lake Sebago, in Maine, observed a couple of Cat-fish, which, at his approach, left the shore suddenly, and returned to the deeper water. Examining the place which the fishes had left, he discovered a nest among the water-plants, with a number of little tadpoles. In a few moments the two fishes returned, looking anxiously towards the nest, and approached within six or eight feet of where Professor Agassiz stood. They were evidently not in search of food, and he became convinced that they were seeking the protection of their young. Large stones, thrown repeatedly into the middle of the nest after the fishes had returned to it, only frightened them away for a brief period, and they returned to the spot within ten or fifteen minutes. This was repeated four or five times with the same result. This negatives the assertion made by some naturalists—that no fishes are known to take any care of their offspring.

But affection is scarcely to be looked for where the offspring is so very numerous as to put all attempts at even recognising them out of the question. How could the fondest mother love 100,000 little ones at once? Yet the number is far exceeded by some of the matrons of the deep. Petit found 300,000 eggs in a single carp; Lenwenhoeck 9,000,000 in a single cod; Mr. Harmer found in a sole 100,000; in a tench 300,000; in a mackerel 500,000; and in a flounder 1,357,000. [14] M. Rousseau disburthened a pike of 160,000, and a sturgeon of 1,567,000, while from this latter class has been gotten 119 pounds weight of eggs, which, at the rate of 7 to a grain, would give a total amount of 7,653,200 eggs! If all these came to maturity the world would be in a short time nothing but fish: means, however, amply sufficient to keep down this unwelcome superabundance have been provided. Fish themselves, men, birds, other marine animals, to say nothing of the dispersions produced by storms and currents, the destruction consequent on their being thrown on the beach and left there to dry up, all combine to diminish this excessive supply over demand. Yet, on the other hand (so wonderfully are all the contrivances of nature so harmonized and balanced), one of these apparent modes of destruction becomes an actual means of extending the species. The eggs of the pike, barbel, and many other fish, says M. Virey, are rendered indigestible by an acid oil which they contain, and in consequence of which they are passed in the same condition as they were swallowed; the result of which is, that being taken in by ducks, grebes, or other water-fowls, they are thus transported to situations, such as inland lakes, which otherwise they could never have attained; and in this way only can we account for the fact, now well ascertained, that several lakes in the Alps, formed by the thawing of the glaciers, are now abundantly stocked with excellent fish.

Little fishes are ordinarily the food of larger marine animals; but a remarkable exception occurs in the case of the larger MedusÆ, which are stated in various works to prey upon fishes for sustenance. Mr. Peach, the naturalist, has, however, by observations at Peterhead, in Aberdeenshire, thus corrected this statement. He observed several small fishes playing round the larger MedusÆ in the harbour and bay. When alarmed, they would rush under the umbrella, and remain sheltered in its large folds till the danger had passed, when they would emerge, and sport and play about their sheltering friend. When beneath the umbrella they lay so close that they were frequently taken into a bucket with the MedusÆ. They proved to be young whitings, varying from 1-1/2 to 2 inches long. These little creatures, so far from becoming the prey of the MedusÆ, experienced from them protection; and, moreover, they preferred the stinging one. In no instance did Mr. Peach see a fish in the stomach of the MedusÆ, but all could liberate themselves when they pleased. In one case, Mr. Peach witnessed a small whiting, in the first instance chased by a single young pollack, whose assault the little fellow easily evaded by dodging about; but the chaser being joined by others, the whiting was driven from its imperfect shelter, and after being much bitten and dashed about by its assailants, became at length completely exhausted, and lay to all appearance dead. Recovering, however, after action, it swam slowly to the MedusÆ, and took refuge as before; but its movements being soon observed, it was again attacked, after a very brief respite, driven into open water, and speedily despatched.

Fishes appear to execute annually two great migrations. By one of these shiftings they forsake the deep water for a time, and approach the shallow shores, and by the other they return to their more concealed haunts. These movements are connected with the purposes of spawning, the fry requiring to come into life, and to spend a certain portion of their youth in situations different from those which are suited to the period of maturity. It is in obedience to these arrangements that the Cod and Haddock, the Mackerel, and others, annually leave the deeper and less accessible parts of the ocean, the region of the zoophytic tribes, and deposit their spawn within that zone of marine vegetation which fringes our coasts, extending from near the high-water mark of neap-tides to a short distance beyond the low-water mark of spring-tides. Amidst the shelter in this region afforded by the groves of arborescent fuci, the young fish were wont in comfort to spend their infancy, but since these plants have been so frequently cut down to procure materials for the manufacture of kelp, and the requisite protection withdrawn, the fisheries have greatly suffered. Many species of fish, as the Salmon, Smelt, and others, in forsaking the deep water, and approaching a suitable spawning station, leave the sea altogether for a time, ascend the rivers and their tributary streams, and, having deposited their eggs, return again to their usual haunts. Even a certain species of fish, inhabiting lakes, as the Roach, betake themselves to the tributary streams, as the most suitable places for spawning.

The Goramy, of India, are stated by General Hardwicke to watch most actively the margins of the spot which they select and prepare for depositing their spawn, driving away with violence every other fish which approaches their cover. The General adds that from the time he first noticed this circumstance about one month had elapsed, when one day he saw numerous minute fishes close to the margin of the grass, on the outer side of which the parent fishes continued to pass to and fro.

There is a species of Grampus from two to three tons weight, and about sixteen feet in length, that amuses itself with jumping, or rather springing its ponderous body entirely out of the water, in a vertical position, and falling upon its back. This effort of so large a fish is almost incredible, and informs us how surprisingly great the power of muscle must be in this class of animal. A Correspondent writes to the "United Service Journal":—"I have seen them spring out of the water within ten yards of the ship's side, generally in the evening, after having swam all the former part of the day in the ship's wake, or on either quarter. When several of these fish take it into their heads to 'dance a hornpipe,' as the sailors term their gambols, at the distance of half a mile, they, especially at or just after sundown, may easily be mistaken for the sharp points of rocks sticking up out of the water, and the splashing and foam they make and produce have the appearance of the action of waves upon rocks. An officer of the navy informed me that, after sunset, when near the equator, he was not a little alarmed and surprised at the cry of 'rocks on the starboard bow!' Looking forward, he indistinctly saw objects which he and all on board took to be pinnacles of several rocks of a black and white colour. In a short time, however, he discovered this formidable danger to be nothing more than a company of dancing Grampuses with white bellies. As one disappeared, another rose; so that there were at least five or six constantly above the surface."

Captain Owen relates that "the Bonita has the power of throwing itself out of the water to an almost incredible distance when in pursuit of its prey, the Flying Fish; and, the day previous to our arrival at Mozambique, one of these fish rose close under our bow, and passed under the vessel's side, and struck with such force against the poop, that, had any one received the blow, it must have been fatal. Stunned by the violence of the contact, it fell motionless at the helmsman's feet; but, soon recovering, its struggles were so furious that it became necessary to inflict several blows with an axe before it could be approached with safety. The greatest elevation it attained above the surface of water was eighteen feet, and the length of the leap, had no opposition occurred, would have exceeded 180."

Of winged or Flying Fish we find this extravagant account in a philosophical romance, entitled, "Telliamed," by M. Maillet, an ingenious Frenchman, of the days of Louis XV.:—

He believed, like Lamarck, that the whole family of birds had existed one time as fishes, which, on being thrown ashore by the waves, had got feathers by accident; and that men themselves are but the descendants of a tribe of sea-monsters, who, tiring of their proper element, crawled upon the beach one sunny morning, and, taking a fancy to the land, forgot to return. The account is as amusing as a fairy tale. "Winged or Flying Fish," says Maillet, "stimulated by the desire of prey, or the fear of death, or pushed near the shore by the billows, have fallen among the reeds or herbage, whence it was not possible for them to resume their flight to the sea, by means of which they had contracted their first facility of flying. Then their fins, being no longer bathed in the sea-water, were split and became warped by their dryness. While they found among the reeds and herbage among which they fell many aliments to support them, the vessels of their fins being separated, were lengthened, or clothed with beards, or, to speak more justly, the membranes which before kept them adherent to each other were metamorphosed. The beard formed of these warped membranes was lengthened. The skin of these animals was insensibly covered with a down of the same colour with the skin, and this down gradually increased. The little wings they had under their belly, and which, like their wings, helped them to walk into the sea, became feet, and helped them to walk on the land. There were also other small changes in their figure. The beak and neck of some were lengthened, and of others shortened. The conformity, however, of the first figure subsists in the whole, and it will be always easy to know it. Examine all the species of fowl, even those of the Indies, those which are tufted or not, those whose feathers are reversed—such as we see at Damietta, that is to say, whose plumage runs from the tail to the head—and you will see fine species of fish quite similar, scaly or without scales. All species of Parrots, whose plumages are different, the rarest and most singular marked birds, are, conformable to fact, painted, like them, black, brown, grey, yellow, green, red, violet colour, and those of gold and azure; and all this precisely in the same parts, where the plumages of these birds are diversified in so curious a manner."

The Jaculator Fish, of Java, has been called "a sporting fish," from the precision with which it takes aim at its prey. In 1828 Mr. Mitchell saw several of these fishes in the possession of a Javanese chief; and here is the account of the curious manner in which these Jaculators were employed. They were placed in a small circular pond, from the centre of which projected a pole upwards of two feet in height. At the top of the pole were inserted small pieces of wood, sharp-pointed, and on each of these were placed insects of the beetle tribe. When the slaves had placed the beetles, the fish came out of their holes, and swam round the pond. One of them came to the surface of the water, rested there, and after steadily fixing its eyes for some time on an insect, it discharged from its mouth a small quantity of watery fluid, with such force, and precision of aim, as to strike it off the twig into the water, and in an instant swallowed it. After this, another fish came, and performed a similar feat, and was followed by the others, until they had secured all the insects. If a fish failed in bringing down its prey at the first shot, it swam round the pond till it came opposite the same object, and fired again. In one instance, a fish returned three times to the attack before it secured its prey; but in general the fish seemed very expert gunners, bringing down the beetle at the first shot. The fish, in a state of nature, frequents the shores and sides of the rivers in search of food. When it spies a fly sitting on the plants that grow on shallow water, it swims on to the distance of five or six feet from them, and then, with surprising dexterity, it ejects out of its tubular mouth a single drop of water, which rarely fails to strike the fly into the sea, where it soon becomes its prey.

Curious fish, in great numbers, may be seen in the Harbour of Port Royal, Jamaica, on the surface of the water, and are ranked among the peculiarities of the place. They are the Guardo, or Guard-Fish; the Jack (Sword-Fish); and the Ballahou. The Jack is the largest, and appears to be always at war with the two others; it is armed with formidable teeth; it basks on the surface of the water during the heat of the day, in a sort of indolent, unguarded state; but this is assumed, the better to ensnare the other fish, and to catch the floating bodies that may happen to pass near it; for the moment anything is thrown into the sea from the ship, the Jack darts with the rapidity of lightning upon it, and seizing it as quickly, retreats. This Warrior-fish possesses a foresight or instinctive quality which we see sometimes exemplified in different animals, almost amounting to second reason, such as the sagacity it displays in avoiding the hook when baited; although extremely voracious, it seems aware of the lure held out for its destruction, and avoids it with as much cunning as the generality of fishes show eagerness to devour it. The situation it takes, immediately in the wake of the ship at anchor, is another instance of its sagacity; as whatever is thrown overboard passes astern, where the fish is ever on the alert for the articles thrown over. No other fish of equal size dare approach. The Jack is, however, sometimes enticed with the bait; but he is more frequently struck with a barbed lance, or entrapped in a net. The Guardo has similar habits with the Jack, but is generally beaten by him; yet the former tyrannizes with unrelenting rigour over the weaker associate, the Ballahou.

The tiger of the ocean, the Shark, is often cruising about Port Royal, but rarely injures human life. At Kingston, however, such distressing events often occur. There was a pet Shark known as "Old Tom of Port Royal;" it was fed whenever it approached any of the ships, but was at last killed by the father of a child which it had devoured. Whilst it remained here, no other of the Shark tribe dare venture on his domain; he reigned lord paramount in his watery empire, and never committed any depredation but that for which he suffered.

Attending the Shark is seen the beautiful little Pilot Fish, who, first approaching the bait, returns as if to give notice, when, immediately after, the Shark approaches to seize it. It is a curious circumstance, that this elegant little fish is seen in attendance only upon the Shark. After the Shark is hooked, the Pilot Fish still swims about, and for some time after he has been hauled on deck; it then swims very near the surface of the water. When the Shark has been hooked, and afterwards escapes, he generally returns, and renews the attack with increased ferocity, irritated often by the wound he has received.

Sharks appear to have become of late years much more numerous in Faroe, as they have also in other parts of the North Seas, especially on the coast of Norway.

The reader may, probably, have found on the sea-shore certain cases, which are fancifully called sea-purses, Mermaids' purses, &c. Now, some Sharks bring forth their young alive, whilst others are enclosed in oblong semi-transparent, horny cases, at each extremity of which are two long tendrils. These cases are the above purses, which the parent Shark deposits near the shore in the winter months. The twisting tendrils hang to sea-weed, or other fixed bodies, to prevent the cases being washed away into deep water. Two fissures, one at each end, allow the admission of sea-water; and here the young Shark remains until it has acquired the power of taking food by the mouth, when it leaves what resembles its cradle. The young fish ultimately escapes by an opening at the end, near which the head is situated.

California has yielded an extraordinary novelty in fish history. In 1854 Mr. Jackson, while fishing in San Salita Bay, caught with a hook and line a fish of the perch family containing living young. These were supposed to be the prey which the fish had swallowed, but on opening the belly was found next to the back of the fish, and slightly attached to it, a long very light violet bag, so clear and transparent that there could already be distinguished through it the shape, colour, and formation of a multitude of small fish (all facsimiles of each other), with which the bag was filled. They were in all respects like the mother, and like each other; and there cannot remain a single doubt that these young were the offspring of the fish from whose body they were taken; and that this species of fish gives birth to her young alive and perfectly formed, and adapted to seek its own livelihood in the water. Professor Agassiz has confirmed the truth of this extraordinary statement by a careful examination of the specimens, and has ascertained that there are two very distinct species of this remarkable type of fishes.

Tales of "Wonderful Fish" are common in the works of the old naturalists, whence they are quoted from generation to generation. Sir John Richardson has lately demolished one queer fish, which was as certain to reappear whenever opportunity offered, as the elephant pricked with the tailor's needle does in books of stories of the animal world. We allude to that monstrous myth, the great Manheim Pike, with a collar round his neck, put into a lake by the Emperor Frederick II. in the year 1230; and taken out in the 276th year of his age, the 17th foot of his length, and the 350th pound of his weight. M. Valenciennes, a naturalist of repute, has entered into a critical history of this monster, and has found him to be apocryphal. The creature was, at any rate, taken in several places at once, the legends written on his brass collar do not agree, and his alleged skeleton has been found to be made up of various bones of various fishes; while the vertebrÆ are, unfortunately, so many, that Professor Owen would order him out of Court in an instant as a rank impostor. Probably some specimen of the Mecho, the monstrous fish of the Danube—which has even now been scarcely described, and which has only recently been identified as one of the salmon tribe—having been called a pike, may be at the bottom of the legend of the great Manheim fish. But Sir John Richardson produces another big pike, killed by an intrepid "angler seventy years of age, with a single rod and bait"—an observation which leads to the inquiry of the possibility of catching a single fish with more than one rod and bait—"that weighed seventy-eight pounds." This is stated to have happened in the county of Clare; the angler's name was O'Flanagan.

Here is another wonderful story:—The Bohemians have a proverb—"Every fish has another for prey:" that named the Wels has them all. This is the largest fresh-water fish found in the rivers of Europe, except the sturgeon; it often reaches five or six feet in length. It destroys many aquatic birds, and we are assured that it does not spare the human species. On the 3d of July, 1700, a peasant took one near Thorn, that had an infant entire in its stomach! They tell in Hungary of children and young girls being devoured on going to draw water; and they even relate that, on the frontiers of Turkey, a poor fisherman took one that had in its stomach the body of a woman, her purse full of gold, and a ring! The fish is even reported to have been taken sixteen feet long. The old stories of rings found in the stomachs of fishes will be remembered; as well as here and there a book found in the stomach of a fish!

The Sun-fish is exceedingly rare. A large specimen was captured off Start Point in 1864. Attention was first drawn to a huge dark object on the water. On a boat being sent out, it was soon discovered to be the back fin of a very large fish, apparently asleep. A very exciting chase commenced, extending over an hour, the crew meanwhile battling with harpoons, boat-hooks, &c.; the fish trying several times to upset the boat by getting his back under it. At length a line was thrown over its head, and the fish, being weakened by the struggle, was towed alongside the yacht, hoisted on board, and slaughtered. Yarrell, in his work on British Fishes, states the largest Sun-fish to be about 3 cwt., but the above specimen weighed nearly 6 cwt. Sun-fish are found occasionally in the tropical seas of large dimensions, but those found in the Channel seldom if ever exceed from 1 cwt. to 2 cwt. The peculiarities in regard to this fish are, that it has no bones, but the whole of the formation is of cartilage, which can easily be cut with a knife. The skin is cartilage of about an inch and a-half thick, under which there is no backbone or ribs. This specimen was of extraordinary dimensions—5 ft. 10 in. in length, and 7 ft. from the tip of the dorsal to the point of the anal fin.

The "Courrier de Sagon" brings, as a contribution to Natural History, the not very credible-sounding description of a fish called "Ca-oug" in the Anamite tongue, which is said to have saved the lives already of several Anamites; for which reason the King of Anam has invested it with the name of "Nam hai dui bnong gnan" (Great General of the South Sea). This fish is said to swim round ships near the coast, and, when it sees a man in the water, to seize him with his mouth, and to carry him ashore. A skeleton of this singular inhabitant of the deep is to be seen at Wung-tau, near Cape St. James. It is reported to be thirty-five feet in length, to have tusks "almost like an elephant," very large eyes, a black and smooth skin, a tail like a lobster, and two "wings" on its back. [15]

The Grouper must be a voracious fish, for we read of a specimen being caught off the coast of Queensland, which is thus described:—"It was 7 ft. long, 6 ft. in circumference at its thickest part, and its head weighed 80 lb. When opened, there were found in its stomach two broken bottles, a quart pot, a preserved milk tin, seven medium-sized crabs; a piece of earthenware, triangular in shape, and three inches in length, incrusted with oyster shells, a sheep's head, some mutton and beef bones, and some loose oyster shells. The spine of a skate was imbedded in the Grouper's liver."

The Double-fish, here represented, is a pair of Cat-fish, which were taken alive in a shrimp-net, at the mouth of Cape Fear River, near Fort Johnston. North Carolina, in 1833, and presented to Professor Silliman. One of them is three and a-half, and the other two and a-half inches long, including the tail—the smallest emaciated, and of sickly appearance. They are connected in the manner of the Siamese Twins, by the skin at the breast, which is marked by a dark streak at the line of union. The texture and colour otherwise of this skin is the same as that of the belly. The mouth, viscera, &c., were entire and perfect in each fish; but, on withdrawing the entrails, through an incision made on one side of the abdomen, the connecting integument was found to be hollow. A flexible probe was passed through from one to the other, with the tender and soft end of a spear of grass, drawn from a green plant. But there was no appearance of the entrails of one having come in contact with those of the other, for the integument was less than one-tenth of an inch in its whole thickness; in length, from the body or trunk of one fish to the other, it was three-tenths; and in the water, when the largest fish was in its natural position, the small one could, by the length and pliancy of this skin, swim in nearly the same position. When these fish came into existence it is probable they were of almost equal size and strength, but one "born to better fortune," or exercising more ingenuity and industry than the other, gained a trifling ascendency, which he improved to increase the disparity, and, by pushing his extended mouth in advance of the other, seized the choicest and most of the food for himself.

From the northern parts of British America we have received extraordinary contributions to our fish collections. One of these is the Square-browed Malthe, obtained in one of the land expeditions under the command of Captain Sir John Franklin. R.N. It was taken on the Labrador coast, and then belonged to a species hitherto undescribed. Its intestines were filled with small crabs and univalve shells. The extreme length of the fish is 7 inches 11 lines. The upper surface is greyish white, with brown blotches, and the fins are whitish. The head is much depressed and greatly widened; the eyes far forward; the snout projecting like a small horn. Most of the fish of this family can live long out of water, in consequence of the smallness of their gill-openings; indeed, those of one of the genera are able, even in warm countries, to pass two or three days in creeping over the land. All the family conceal themselves in the mud or sand, and lie in wait to take their prey by surprise. The accompanying engraving is from the very able work of Dr. Richardson, F.R.S., published by the munificence of Government.

Gold Fish (of the Carp family) have been made to distinguish a particular sound made by those from whom they receive their food; they recognise their footsteps at a distance, and come at their call. Captain Brown says Gold Fish, when kept in ponds, are "frequently taught to rise to the surface of the water at the sound of a bell to be fed;" and Mr. Jesse was assured that Gold Fish evince much pleasure on being whistled to. Hakewill, in his "Apology for God's Power and Providence," cites Pliny to show that a certain emperor had ponds containing fish, which, when called by their respective names that were bestowed upon them, came to the spot whence the voice proceeded. Bernier, in his "History of Hindustan," states a like circumstance of the fish belonging to the Great Mogul. The old poet, Martial, also mentions fish coming at the call, as will be seen by the following translation from one of his epigrams:—

Who, after reading so many instances, can doubt that fish hear?

It has been found that the water from steam-engines, which is thrown into dams or ponds for the purpose of being cooled, conduces much to the nutriment of Gold Fish. In these dams, the average temperature of which is about eighty degrees, it is common to keep Gold Fish; in which situation they multiply much more rapidly than in ponds of lower temperature exposed to variations of the climate. Three pair of fish were put into one of these dams, where they increased so rapidly that at the end of three years their progeny, which was accidentally poisoned by verdigris mixed with the refuse tallow from the engine, were taken out by wheel-barrow-fuls. Gold Fish are by no means useless inhabitants of these dams, as they consume the refuse grease which would otherwise impede the cooling of the water by accumulating on its surface. It is not improbable that this unusual supply of aliment may co-operate with increase of temperature in promoting the fecundity of the fishes.

Most of our readers have heard of the fish popularly known as the Miller's Thumb, the origin of the name of which Mr. Yarrell has thus explained:—"It is well known that all the science and tact of a miller is directed so to regulate the machinery of his mill that the meal produced shall be of the most valuable description that the operation of grinding will permit, when performed under the most advantageous circumstances. His ear is constantly directed to the note made by the running stone in its circular course over the bedstone, the exact parallelism of their two surfaces, indicated by a particular sound, being a matter of the first consequence; and his hand is constantly placed under the meal-spout to ascertain, by actual contact, the character and quality of the meal produced, which he does by a particular movement of his thumb in spreading the sample over his fingers. By this incessant action of the miller's thumb, a peculiarity in its shape is produced, which is said to resemble exactly the shape of the river bull-head, a fish constantly found in the mill-stream, and which has obtained for it the name of the Miller's Thumb."

M. Coste has constructed a kind of marine observatory at Concarneau (Finisterre) for the purpose of studying the habits and instincts of various Sea-fish. A terrace has been formed on the top of a house on the quay, with reservoirs arranged like a flight of steps. The sea-water is pumped up to the topmost reservoir, and thence flows down slowly, after the manner of a rivulet. The length is divided into 95 cells by wire net partitions, which, allowing free passage to the water, yet prevent the different species of fish from mingling together. By this ingenious contrivance each kind lives separate, enjoying its peculiar food and habits, unconscious of its state of captivity. Some species, such as the Mullet, the Stickleback, &c., grow perfectly tame, will follow the hand that offers them food, and will even allow themselves to be taken out of the water. The Goby and Bull-head are less familiar. The Turbot, which looks so unintelligent, will, nevertheless, take food from the hand; it changes colour when irritated, the spots with which it is covered growing pale or dark, according to the emotions excited in it. But the most curious circumstance concerning it is, that it swallows fish of a much larger size than would appear compatible with the apparent smallness of its mouth. Thus, a young Turbot, not more than ten inches in length, has been seen to swallow Pilchards of the largest size. The Pipe-Fish has two peculiarities. These fish form groups, entwining their tails together, and remaining immoveable in a vertical position, with their heads upwards. When food is offered them, they perform a curious evolution—they turn round on their backs to receive it. This is owing to the peculiar position of the mouth, which is placed under a kind of beak, and perpendicular to its axis.

The crustaceous tribes have also furnished much matter of observation. The Prawn and Crab, for instance, exercises the virtue of conjugal fidelity to the highest degree; for the male takes hold of his mate, and never lets her go; he swims with her, crawls about with her, and if she is forcibly taken away from him, he seizes hold of her again. The metamorphoses to which various crustaceous tribes are subject have also been studied with much attention. [16]

Much as the nature and habits of fish have been studied of late years, the economy of some is to this day involved in obscurity. The Herring is one of these fishes. The Swedish Herring Fisheries were, at one time, the largest in Europe, but at present, during the temporary disappearance of the fish, they have dwindled away. The causes which influence the movements of the Herring—one of the most capricious of fish—are a puzzle which naturalists have as yet failed to solve. They are not migratory, as was at one time believed—that is, they seldom wander far from the place where they were bred; but they are influenced by certain hidden and unexplained causes at one time to remain for years in the deep sea, and at another to come close in to land in enormous numbers. During the first half of the sixteenth century, Herrings entirely deserted the Swedish coasts. In 1556 they reappeared, and remained for thirty-one years in the shallow waters. Throughout this period they were taken in incalculable numbers; "thousands of ships came annually from Denmark, Germany, Friesland, Holland, England, and France, to purchase the fish, of which sufficient were always found for them to carry away to their own or other countries.... From the small town of Marstrand alone some two million four hundred thousand bushels were yearly exported." In 1587 the Herrings disappeared, and remained absent for seventy-three years, till 1660. In 1727 they returned, and again in 1747, remaining till 1808, and during this last period the fisheries were prosecuted with extraordinary zeal, industry, and success. The Government gave every encouragement to settlers, and it was computed that during some years as many as fifty thousand strangers took part in them. In 1808 the Herrings once more disappeared, and have never returned since. The cause must still be considered as quite unknown; but we may fairly assume, according to historical precedents, that after a certain period of absence, the Herrings will again return. [17]

Aristotle, in his "History of Animals," makes some extremely curious observations on Fish and Cetaceous Animals, as might be expected from the variety of these animals in the Grecian seas. In Spratt and Forbes's "Travels in Syria" the account of the habits and structure of the Cuttle-fish in Aristotle's work is ranked amongst the most admirable natural history essays ever written. It is, moreover, remarkable for its anticipation.

Dr. Osborne, in 1840, read to the Royal Society a short analysis of this work, in which he showed that Aristotle anticipated Dr. Jenner's researches respecting the cuckoo; as also some discoveries respecting the incubated egg, which were published as new in the above year. Aristotle describes the economy of bees as we have it at present; but mistakes the sex of the queen. The various organs are described as modified throughout the different classes of animals (beginning with man) in nearly the same order as that afterwards adopted by Cuvier.

The chief value of this body of knowledge, which has been buried for above 2,000 years, is, that it is a collection of facts observed under peculiar advantages, such as never since occurred, and that it is at the present day to be consulted for new discoveries.

According to Pliny, for the above work some thousands of men were placed at Aristotle's disposal throughout Greece and Asia, comprising persons connected with hunting and fishing, or who had the care of cattle, fish-ponds, and apiaries, in order that he might obtain information from all quarters, ne quid usquam gentium ignoretur ab eo. According to AthenÆus, Aristotle received from the prince, on account of the expenses of the work, 800 talents, or upwards of 79,000l.

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