Altogether, it has a very venomous look about it; but is truly one of the most harmless of creatures, not being a snake at all, though it goes by the name of the gla.s.s snake. It is in reality a lizard; though--not having the vestige of limbs--it is appropriately called the lizard-snake. It has, however, eyelids; and the tongue is not sheathed at the base, as is the case with serpents; while its solid jaw-bones do not enable it to open its mouth, as they are capable of doing. It has a tail, twice the length of its body, from which it can with difficulty be distinguished.

Its peculiar characteristic is its extraordinary fragility--arising from the muscles being articulated quite through the vertebras. If struck with a switch, the body is easily broken in two or more parts.

Sometimes, indeed, the creature breaks off its own tail, by a remarkable habit it possesses of contracting the muscles with great force. The common English blind-worm breaks to pieces in a similar manner.

THE ANOLIS.

Among the true lizards is a pretty little creature known as the green Carolina anolis. It is especially daring; not only refusing to run away at the approach of man, but will enter houses, and run about the room in search of flies. It is very active, climbing trees, and leaping from branch to branch in its search for insects, of which it destroys great numbers. It is about seven inches long--mostly of a beautiful green above, with white below; and it has a white throat-pouch, which generally appears with a few bars of red upon it, but when inflated the colour spreads over the whole surface.

Mr Gosse describes one which he saw running about among the branches of a sa.s.safras, just as it had seized a gra.s.shopper. He caught the creature, which was then of a green hue; but, on placing it on an old log, the colour changed to a brownish-black. He was told, that if placed on a green leaf it would again become green. In a short time, after remaining in the sunshine, it changed once more to green. Again it became almost black; and shutting it up in a desk, after half an hour he was no less surprised than delighted to see the lizard of a brilliant green, the line down the back only being blackish.

When the animal is excited, the pouch, swelling out, becomes of a crimson colour. It is covered with excessively small--scarcely perceptible--scales.

These little creatures are at times very quarrelsome, and will fight together, frequently both the combatants losing their tails in the contest; while their pouches swell out as they leap at each other and struggle furiously.

THE CROWNED TAPAYAXIN.

This is the scientific name of a creature generally known under the t.i.tle of the horned-toad, though really a lizard. Its head is of a light brown, marked with dark spots, the under part being of a dull yellow; and is armed with long conical spines, set round the edge and pointing backwards. The back is covered with shorter and stouter spines, of a triangular shape, extending to the very point of the tail-- also armed with a strong row of spines, which gives it a completely toothed appearance. The colour of this curiously covered back is grey, with irregular bands of chestnut-brown across it.

Formidable as it looks, it is not only harmless, but never retaliates when attacked, and remains perfectly quiet when taken in the hand. It is also easily tamed, and learns to know its owner, and to take food from his hand--preferring little red ants, though it eats readily beetles, flies, and other insects. From its small, rounded form, and the mode of sitting, it has in all likelihood gained its common name of the horned-toad.

SNAKES:--THE RATTLESNAKE.

Throughout North America there are no small number and variety of venomous snakes. The rattlesnakes are perhaps the most numerous, frequenting all parts of the country, though they generally keep to the uninhabited portions. They are found on the northern sh.o.r.es of Lake Superior--though the ground is covered for several months in the year with snow--and often appear in the regions to the west, in the same lat.i.tude, up to the Rocky Mountains. They would render some districts uninhabitable, were it not for the signal-giving rattles with which they are armed. Even quadrupeds are alarmed at the sound, and endeavour to make their escape from them; and horses, it is said, lately arrived from Europe, show the same dread of these deadly serpents as do those born in the country, so that nothing will induce them to pa.s.s within striking distance of the creatures.

The wanderer through the forest starts back with dismay as he comes suddenly upon one of these venomous reptiles, and hears its ominous rattle when too near to escape. He must muster all his nerve, and strike it with his stick as it springs; for a wound from its fangs will, as he knows, bring certain death, far-away from human aid.

The rattlesnake, like others of its tribe in cold regions, hibernates in winter; and as the autumn comes on, seeks some convenient crevice in which to pa.s.s the cold season--generally in the neighbourhood of marshy ground, where it can cover itself up in the ma.s.ses of a peculiar species of moss growing in such situations. The reptiles are here, during the winter, frequently hunted out and destroyed. At that time, too, their bite is much less dangerous than in the summer--the amount of venom appearing to decrease with the increase of cold.

THE BANDED AND MILITARY RATTLESNAKES.

Besides the common rattlesnake, there is another known as the banded rattlesnake, and a third species called the small, or military rattlesnake. The latter is more dreaded, from being of less size, and not so easily killed as the former. The sound made by its rattle is extremely feeble, so that it cannot be heard at any great distance.

However, as we shall pay more attention to the serpent tribe when we visit South America, where the rattlesnake is also found, we will wait till then to inspect the formation of its rattle, and its other peculiarities.

THE CORN SNAKE.

There are many more harmless than venomous snakes in North America. One of the handsomest of its tribe is the corn snake, belonging to the family of the Colubrinae. As it avoids the daylight, though very common, it is not often seen in a wild state.

It is, however, frequently tamed by the inhabitants of farmhouses--when it makes itself perfectly at home, and is even of more service than a cat in devouring rats and mice; though occasionally, if a young chicken come in its way, it may gobble it up. This it can easily do, as it is of great size--varying from five to six feet in length. The colours of its body are remarkably brilliant; the general tint being a rich chestnut red, with large patches of a still brighter and deeper red edged with black running along each side, and a second row of smaller spots of golden yellow, alternated with larger ones. The lower portion of the body is silvery white, checkered with black.

THE THUNDER SNAKE.

No fiercer-looking member of the snake family exists in North America-- with its mottled head, and black and white body, four feet at least in length--than the quarrelsome thunder snake. From the chain-like markings on its body, it is sometimes called the chain snake; and by others the king snake, on account of its tyrannical disposition.

Though fangless, it is fierce and bold, and has been known to attack, kill, and eat a rattlesnake; indeed, it will a.s.sault any member of its family, if not of its own species, even though but little smaller than itself. It feeds on small quadrupeds, birds, and reptiles; and few human beings who see it moving amid the shady places it inhabits, would fail to get out of its way as quickly as possible.

THE CHICKEN SNAKE.

The bright golden brown chicken snake--marked with narrow stripes along the back, and from four to seven feet in length--in spite of its beautiful and fangless mouth, is an unwelcome visitor in farmhouses when it comes as a stranger, for it is apt to carry off fowls from their roost--as well as their eggs--and will eat up a brood of ducklings without ceremony.

However, as it is of an amiable disposition, it can easily be tamed; and then, having learned good manners, it becomes a favourite, and recompenses its protectors by killing the rats and mice which frequent their premises.

THE MILK OR HOUSE SNAKE.

The beautiful blue house snake--four feet in length, with rows of spots on its side--is often mistaken for the corn snake, its habits being very similar. The lower part of the body is of a silvery white, tesselated with oblong marks of black. The ignorant fancy that it sucks the milk from the udders of the cows, and hence its name; though, probably, it has no objection to a little milk, if it finds it in a pan. Its object, however, in entering houses and farms, is to search for mice and insects, on which it in reality feeds, never interfering with the cows or other animals.

THE BLACK SNAKE.

In many parts of the country, the black snake, on account of its rapid movements, is called the "racer." Though fangless, it often, in consequence of the way in which it rustles its tail among the dry herbage, making a sound similar to that of the rattlesnake, gives no small alarm to the wanderer among the brushwood near the edges of streams or ponds. It is also frequently encountered in the fields or on the roads.

It is generally from five to six feet in length; of a blue-black above, and an ashy grey below. It climbs trees in search of birds or their eggs; and if interrupted in its employment, will turn its rage against the intruder. Sometimes, it is a.s.serted, it will, to his horror, leap down and give him a bite; though the only injury likely to arise is that to his nervous system from fright. Its bite is, indeed, perfectly harmless; and it does good service in hunting rats which live in the outbuildings, being able to climb walls and insinuate itself into the most intricate pa.s.sages when chasing them.

THE COACH-WHIP SNAKE.

The last snake we will mention is the coach-whip snake, belonging to the family of Dryadidae. No serpent can surpa.s.s it in the rapidity of its movements, as, with its lithe, black body--between five and six feet in length--and whiplike tail, it makes its way amid the gra.s.s in pursuit of its prey. It seems literally to fly over the ground with the speed of lightning.

It is curiously like the thong of a whip, being very long in proportion to its girth, with a remarkably small head and neck; its smooth scales-- so arranged as greatly to resemble the plaited leather of a whip--of a polished brown-black hue increasing the resemblance.

When about to seize its prey, it darts forward with open mouth, grasping the animal; in an instant it winds its lithe body and tail round and round it, so as to make escape impossible. It will thus attack birds of prey of considerable size, and come off victorious.

Travellers unacquainted with the reptiles which haunt the wilds of America, on first seeing a whip-snake rapidly approaching, will, with sensations of alarm, urge on their steeds to escape--for it appears fully capable of springing up and inflicting mortal injury; but, from having no fangs, it is unable to harm any one. From the delicacy of its colour, the elegance of its form, and the rapidity and gracefulness of its movements, it cannot fail to be admired.

FROGS:--THE BULL FROG.

We shall find no small number of the frog race throughout America.

Worthy of being the president of his nation is that enormous batrachian, the bull frog, both from his size, the power of his notes, and his hardihood and endurance. If we visit at night the neighbourhood of some pool or marsh, we shall soon learn to know the sound of his voice, especially when perhaps he and five hundred of his family are, with their heads half out of the water, amusing themselves in the performance of a concert, each striving to outdo his neighbour in the loudness of his tones. He is a first-rate swimmer; and when driven out of the hole in which he pa.s.ses the warm hours of the day, he plunges into the water, and skims along the surface some distance before he dives below it.

Only on such occasions, or when, perhaps, a dark thunder-cloud shrouds the sky, does he appear in the daytime, and give utterance to his notes.

He feeds on snails and water creatures; sometimes on crayfish and other crustaceans; and occasionally, if a duckling or young chicken come in his way, he will not scruple to take them into his capacious maw.

His ordinary size is from six to seven inches; but specimens have been met with which have measured nineteen--and even twenty--inches, from the nose to the extremity of their feet. He has a smooth black skin above, with a greenish hue on the head, and lower part of the body greyish-white--the throat being white, dotted with green. He can take enormous leaps; and is so admirable a swimmer, that specimens have been known to exist in the water without once landing for several years.

THE SOLITARY FROG.

Inland, where no water is to lie found, we shall meet with a creature of an olive colour--the back covered with tubercles--and with a blunt nose.

It might easily be mistaken for a toad, though it is a veritable frog.

Even in winter, before the snow has disappeared, we may see the hardy little creature making its way over the frozen surface of the ground.

At the breeding season, however, it returns, like other frogs, to the water. It resides for the chief part of the year in sandy districts, in which it forms burrows, about six inches in depth, by means of a flat, sharp-edged spur, with which it is furnished. Into these burrows it makes its way backwards, very much as a crab crawls into its hole when seeking shelter from danger. There it sits, with its head poked out, watching for pa.s.sing prey.

THE SAVANNAH CRICKET FROG.

Both in the Northern and Southern States we shall find a merry little creature, with a voice greatly resembling that of the cricket. Living near the borders of stagnant pools, it frequently takes its seat on the large leaves of water-lilies and other aquatic plants; being able, by curious discs on its toes, to crawl easily over their smooth surfaces.

It is among the smallest of its tribe, measuring only one and a half inches in length. It is of a greenish-brown, variegated with streaks of green and white, the under surface being of a yellowish-grey, tinged with pink, and the legs banded. Its body is slender, with the hind-legs very long, enabling it to take enormous leaps to escape danger.

THE CHANGEABLE TREE FROG.

Throughout all parts of the continent we shall find a curious little toad, about two inches in length, which possesses the nature of the chameleon--in being able to change its colour according to the tints of the object on which it rests. By this means, so completely does it a.s.similate its hue to the ground, that it often escapes observation.

The changes of colour it thus rapidly pa.s.ses through are indeed remarkable. From a nearly perfect white, it can a.s.sume every intermediate shade to a dark brown. It has a very toad-like look, and possesses skin glands which secrete an acrid fluid. Thus it is able, when attacked, to defend itself, as well as escape observation.