The hind legs and feet are round and neither fringed nor pectinated on the sides; the toes are not completely webbed, the connecting membrane only extending to their middle; and finally, the postorbital holes of the cranium, so conspicuous in the true crocodiles, are very minute in the alligators, or even entirely wanting." The Crocodiles, properly so called, on the contrary, have the head at least twice as long as it is broad; 15 teeth on each side of the lower jaw, and 19 on each side of the upper. The incisor or front teeth, as in the alligators, shape ups skechers shape ups boots pierce through the upper jaw, at a certain age, but the fourth or largest of the lower jaw, instead of being received into a shape ups corresponding hole of the upper, passes into a notch on each side of it; and finally, the hind feet are bordered by a denticulated fringe, and the toes are completely united by a swimming membrane.The characters here reported as peculiar to the alligators and crocodiles respectively, are evidently not of sufficient importance to exert any very sensible influence upon their general economy. Of the characters and organic modifications which they possess in common, the principal is the long taper tail, strongly compressed on the sides, and surmounted towards its origin skechers shoes with a double series shape ups shoes of keel-shaped plates, forming two upright denticulated crests, which, gradually converging towards the middle of the tail, there unite and form a single row to the extremity. Its great size, and laterally-compressed form, render the tail an organ of the utmost importance to the crocodiles and alligators: it is true that its weight materially impedes their motions on dry land, but it is a most powerful instrument of progression in the water, and influences the aquatic habits of skechers shape ups these animals much more than their webbed feet.

The latter character, indeed, is comparatively of little weight: the hind feet are only used to assist the progression in slow and gentle motion, but in all sudden and violent actions the tail alone is the active instrument; and even when the animal is surprised on land, as we are assured by Adanson, it becomes a powerful weapon of offence. The compression of the toil is not peculiar among reptiles to crocodiles, though so powerfully influencing their habits; but the second character which is common to the fuhTM genus, namely, the palmated or semi-palmated hind feet, is exhibited by no other genus of reptiles, though all are more or less addicted to an aquatic life. This fact sufficiently demonstrates the small influence which the palmated form of the extremities exerts upon the economy of these animals in general. Still this character is by no means devoid of importance, though in proportion to its utility shape ups shoes in aquatic progression it renders the terrestrial motions of the animals extremejy slow ana awkward; and this effect is still further increased by the length and weight of the toil at one end, and by the anatomical structure of the neck at the other. Each of the cervical shape ups boots vertebra; has on either side a species of false rib, and their meeting at the extremities along the whole neck completely hinders the animal from turning its head to either side, and renders all its movements stiff and constrained. Neither is the pace of the crocodiles on land so swift as to make them objects of fear to ordinary quadrupeds; skechers shape ups a man can easily outstrip them, and so sensible are these animals of their own inferiority in this respect, that they immediately retreat to their more congenial element upon the most distant appearance of the human species. •.The other shape ups general characters of the crocodiles and alligators consist in their long flat heads, thick neck and bodies, protected by regular transverse rows of square bony plateB skechers shoes or shields, elevated in the centre into keel-shaped ridges, and disposed, on the back shape ups skechers of the neck, into groups of different forms and numbers, according to the species.

The mouth is extremely large, extending considerably behind the eyes, and furnished in each jaw with a single row of conical teeth, all of different sizes, and standing apart from one another: shape ups boots these are hollow within, and never vary in number, but are successively pushed out and replaced by others of larger dimensions, as the animals increase in age and size. The tongue shape ups shoes is short and fleshy, and attaches to the under jaw throughout skechers shape ups its whole extent. It is consequently incapable of protrusion, and from its small size and backward position seldom seen even when the animal opens its moiith, which circumstance occasioned the belief so universally prevalent among the ancients, that the crocodile was altogether deprived of this organ. The eyes are placed on the upper surface of the skull, are much approximated towards one another, and provided each with three distinct skechers shoes lids skechers shoes : the nostrils form a long narrow canal, placed at the extremity of the muzzle; the ears are closed externally by two fleshy valves, and beneath the throat are two small pouches or glands, which open externally and contain a musky substance.' Finally, the feet are provided with five toes before, long and separate, and four behind, more or less perfectly united by membranes: of shape ups these, the three interior alone on each foot are provided with claws, so that the two outer toes on the fore-feet, and one on the hind, are constantly clawless.Habits of the Alligator.—It is reported by Pliny, that the Egyptian crocodile retires to a secret cave or hiding-place, on the approach of winter, and spends three or four of shape ups skechers the coldest months in a state of lethargy, and without taking any food : this phenomenon, usually called hybernation, is almost universal among reptiles and serpents, at least in temperate and high latitudes, and has been repeatedly observed with regard to the alligators.

On the approach of the cold season these animals bury themselves in the mud at the shape ups skechers bottom of some stagnant pond, where they remain concealed and inactive till the return of spring. shape ups boots Travellers assure us that they are never to be skechers shape ups found in running streams, but that they frequent in preference some stagnant pond or the creeks of large rivers. Here they may be seen in almost countless multitudes, for they are extremely numerous in the "remote unfrequented parts of South America, protruding their large flat heads through the leaves of the Nynvphwa, Ponttdtria, and other aquatic plants which cover the surface of the water, shape ups shoes and watching for prey ; or sometimes basking in the sun or sleeping on the banks. They never come on shore, except during the hottest part of the day, and always retire to the water on the approach of night, during which time they are extremely active in search of prey. Their food consists principally of fish, and it is conjectured b^S'ime physiologists, that the musky fluid, secreted by the glands under the throat, acts as a kind of bait to attract their prey. The alligators are seldom known to shape ups attack the human species, unless in defence of their eggs or young; the females of these reptiles are reported to exhibit a much stronger skechers shoes degree of maternal affection for their offspring than usually belongs to their class. They generally lay from fifty to sixty eggs in one place, of about the same size as those of a goose, which they cover up with sand, and leave to be hatched by the heat of the sun; never however removing to any great distance. When the young ones come forth, they are about five or six inches long, and are immediately conducted to the water by the female alligator.