XXV] CLASSIFICATION 727 



patches on the buttocks : with rare exceptions a well- 

 developed tail. 



Ex. Macacus, Semnopithecus. 



Family 2. Simiidae. 



Catarrhini with arms much longer than legs and a 

 semi-erect gait : no tail. 



Ex. Gorilla, Hylobates, Simia, Anthropopithecus. 



Section C. Hominidae. 



Anthropoidea with arms of moderate length and long legs : 

 the foot entirely adapted to support the body, the great toe 

 not opposable to the other toes : the thumb completely oppos- 

 able- to the other fingers : the upright attitude habitual : no 

 tail : brain very large. 

 Ex. Homo. 



