FOOT-HANDED AND HAND-WINGED VERTEBRATES. 35 
skins. The Mandrill, Fig. 15, the largest and fiercest of 
the class, is prominent in this respect. Its colors are 
Fig. 15.—Mandrill. 
very brilliant and various. Being as tall as a man when 
erect, it presents a singular and formidable appearance. 
Its head is large, with very prominent eyebrows, and 
small, deeply-sunk eyes; the cheek bones are enormous, 
with large prominences on it of light blue, deep purple, 
and scarlet; its hair is an olive brown above and silvery 
- gray below, but of a deep orange under the chin; the 
ears are violet-black, and the hinder parts of its body are 
a deep scarlet, This is Carpenter’s description. The 
colors must vary in different cases, as I find them some- 
\_what differently described by others. 
_~ 52. The American monkeys are different species from 
/ those which we find in the Old World. Some of the 
particulars in which they differ from them I will men- 
tion. They are generally much smaller. The thumb is 
a very diminutive affair, and can not be brought in op- 
position to the fingers. In some cases it is wanting. 
The nostrils are wide apart, and open sidewise, while in 
the monkeys of Asia and Africa they are near together, 
