VERTEBKATA. 



357 



FIG. 352. White-throated Sapajou (Cebus hyjwlencus). Central America. 



bellu in. 184 While in the Monkeys the skull is rounded 

 and smooth, that of the Apes, especially those coming 

 nearest to Man the anthropoid, or long-armed, Apes, as 

 Gorilla, Chimpanzee, Orang, and Gibbon is characterized 

 by strong crests. Monkeys take a horizontal position ; 



but the Apes assume a semi- 

 erect attitude, the legs being 

 shorter than the arms. In 



FIG. 353. Skull of Orang-utau (Simia 

 satyrus). 



FIG. 354. Skull of Chimpanzee (Troglo- 

 dytes Niger). 



