THE JERBOA. (Dipus ægyptius.)
The principal peculiarity of this animal consists in its having very short fore legs, and very long hinder ones: a bird divested of its feathers and wings, and jumping upon its legs, would give us the nearest resemblance to the figure of a Jerboa when pursued. It uses, however, all its four feet upon ordinary occasions, and it is only when pursued that it presses its fore feet close to its body, and leaps on its hind ones. The ancients called it the two-footed rat. This creature is about the size of a rat; the head resembles that of a rabbit, with long whiskers; the tail is ten inches long, and terminated by a tuft of black hair. The fur of the body is tawny, except the breast and throat, and part of the belly, which are white. The Jerboa is very active and lively, and jumps and springs, when pursued, six or seven feet from the ground, with the assistance of its tail; but if this useful member be in any manner injured, the activity of the Jerboa is proportionately diminished; and one which had been accidentally deprived of its tail, was found unable to leap at all. It burrows like the rabbit, and feeds like the squirrel: it is a native of Egypt and the adjacent countries, and is also found in eastern Europe.
THE CHINCHILLA. (Chinchilla lanigera.)
The Chinchilla is a native of America, and its coat produces the beautiful fur known by its name. The length of the body of this little animal is about nine inches, and its tail nearly five; its limbs are comparatively short, the hind legs being much the longest. The fur is of a remarkably close and fine texture, somewhat crisped, and entangled together; of a grayish or ash colour above, and paler beneath. It is used for muffs, tippets, and linings of cloaks, and is perhaps prettier than the Sable, although less durable, and less valuable in commerce, excepting when fashion rules. The form of the head resembles that of the rabbit; the eyes are full, large, and black; and the ears broad, naked, round at the tips, and nearly as long as the head. The whiskers are plentiful and strong, the longest being twice as long as the head, some of them black, others white. Four short toes, with an appearance of a thumb, terminate the fore feet; the hinder have the same number of toes, but have less the appearance of hands: on all the claws are short, and nearly hidden by tufts of bristly hairs. The tail is about half the length of the body, of equal thickness throughout, and covered with long bushy hairs. It resembles in some degree the jerboa, and takes its food, like that animal, in its fore paws, sitting on its haunches. The temper of the Chinchilla is mild and tractable. It dwells in burrows under ground, and produces young twice a year, bringing forth five or six at a time. It feeds upon the roots of bulbous plants.