VERTEBRATA. 



357 



Fio. 362. White-throated Sapajou (Cebus hypolencus). Central America. 



belluni. 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 



Fie. 353. Skull of Orang-utan (Simia 

 satyrue). 



FIG. 354 Skull of Chimpanzee (Troglo- 

 dytes Niger). 



