active, less varied, and even less vigorous; for by the enumeration of the American animals we shall perceive, that not only the number of species is smaller, but that in general they are inferior in size to those of the old continent; not one animal throughout America can be compared to the elephant, rhinoceros, hippopotamus, dromedary, buffalo, tiger, lion, &c. The Tapir of Brasil is the largest of all the South American animals, and this elephant of the new world exceeds not the size of a very small mule, or a calf at six months old; with both which animals he has been compared, although he does not resemble either. The Lama is not so big as the tapir, and appears large only from the length of his neck and legs; and the Pacos is much smaller still. The Cabiai, which, next to the tapir, is the largest of the South American animals, is not bigger than a common-sized hog; he differs as much as any of the preceding from all the animals of the old continent; for although he has been called the water-hog, he has essentially different characteristics from that animal. The Tajacou is smaller than the cabiai, and has a strong external resemblance to the hog, but differs greatly in his internal conformation. Neither the tajacou, cabiai, nor the tapir, are to be found in any part of the old continent; and the same may be said of the _Tamanduacuacu_, or _Ouariri_, and of the _Ouatiriou_, which we have called Ant-eaters. These last animals, the largest of which is below mediocrity, seem confined to the regions of South America. They are remarkable in having no teeth, their tongue is long and cylindrical, and their mouth is so small that they can neither bite nor hardly take hold of any thing; they can only procure subsistence by putting out their long tongue in the way of the ants, and drawing it in when loaded with them. The sloth, which is called _ai_, or _hai_, by the natives of Brasil, on account of the plaintive cry of _ai_, which it continually sends forth, seems likewise to be confined to the new continent. It is smaller than either of the preceding ones, being not more than two feet long, and is scarcely so quick in his motion as the turtle; it has but three claws on each foot, its fore legs are longer than its hind ones, it has a very short tail, and no ears. Besides, the sloth and armadillo are the only quadrupeds, which have neither incisive nor canine teeth, but whose grinders are cylindrical, and round at the extremities, nearly like those of some cetaceous animals.