Beneath the chin it is white

while the throat and neck are of a dark gray. The under parts of the body toward the tail are very pale red. It is about 2 feet long and 18 inches high. The skins are much sought for and are employed in various manufactures, The cro ed fox differs very much from the common fox. The color of his fur is a sort of gray, resulting from the mixture of black and white hair. He has a black cro on his shoulders, from which he derives his name, The muzzle, lower parts of the body, and the feet, are black; the tail is terminated with white. It inhabits the N. parts of America, and may — pape be only a variety of the black ‘Ox. The swift fox, a beautiful little animal, which was first accurately described by Mr. Say, inhabits the great — which lie at_the base of the »! mountains. It is much smaller than the other American specie, avd forms its habitation by burrows ing. It is distinguished by its extraordinary speed, which appears to surpa that of any other animal. Its body is slender, and the tail rather —_ cylindrical, and black. The hair is fine, dense, and soft. The gray fox is common throughout the N. parts of America, more particularly in the neighborhood of habitations. Its | eolor is gray, » becoming gradually darker from the shoulders to the hips. It has a sharp head, marked by a blackish gray triangle, which gives it a peculiar physiognomy. The tail is thick, and contains at its tip a tuft of stiff hairs, hence the subgeneric distinction of the bristle-tailed foxes. The Arctic fox is smaller than the common fox. It has short rounded ears almost hid in its fur; its hair is long, soft, and somewhat woolly; its legs are short, having the toes covered with fur, like those of the hare; hence its specific name. It inhabits the countries bordering on the frozen ocean in both continents. Their skins are not of any great value, though frequently used as rugs.