FOOT-HANDED AND HAND-WINGED VEETEBRATES. 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, 



