_Distinctive Characters of this Species._ The callitrix has pouches on each side of his cheeks, and callosities on his posteriors. The tail is much longer than both the head and body. The head is small, the muzzle long, and the face and ears are black: instead of eyebrows, he has a narrow stripe of black hairs across the forehead. The body is of a fine green mixed with a little yellow. He walks on four feet; and the length of his body, including the head, is about fifteen inches. The female is subject to the periodical emanation. THE MOUSTAC. The moustac (_fig. 210._) seems to be a native of the same country as the macaque, because its body is, like that, shorter and more compact than the rest of the monkey tribe. This is, probably, the same animal as those who have been to Guinea call White Nose, from its upper lips being of a white colour, and all the rest of the face of a deep blue. It has also two tufts of yellow hair below its ears, which give it a very remarkable appearance, and as it is but small, it seems to be the most beautiful of the monkey kind. _Distinctive Characters of this Species._ The moustac has pouches on each side of his cheeks, and callosities on his posteriors. The tail is much longer than the head and body, being sometimes nineteen or twenty inches. His face is of a deep blue, with a large broad white mark that goes entirely across the upper lip directly under the nose, which is naked, except a slight edging of black hairs both on the upper and under lips. His body is short and compact. There are two tufts of hair, of a bright yellow, below the ears, and another tuft of bristly hair upon the top of the head. The hair on the body is of a greenish cast, and that on the breast and belly of an ash colour. He walks on all fours, and is about a foot and a half long. The female is subject to a periodical emanation. _Engraved for Barr's Buffon._ [Illustration: FIG. 212. _Douc._] [Illustration: FIG. 211. _Talapoin._ FIG. 215. _Sai._] THE TALAPOIN. This monkey, (_fig. 211._) though small, is a beautiful animal. Its name seems to indicate that it is a native of Siam, and other eastern provinces of Asia; but though we cannot positively assert this, it is, however, certain that it belongs to the Old Continent, and is not found any where in the New, because it has pouches on each side of its cheeks, and callosities on its posteriors, which characters neither belong to the sagoins nor sapajous, which are the only animals of the New World that can be compared to the monkeys.