120 



Vertebrata. 



FIG. 58. 



Skeleton of siamang. 



never prehensile. 

 Many, like the 

 macaques of East- 

 ern Asia, have 

 long and promi- 

 nent canine teeth, 

 but these are wea- 

 pons of offence, 

 not indicative of 

 a carnivorous diet. 

 The sacred mon- 

 key of India (Sem- 

 nopithecus), and 

 the thumb-less 

 Colobus of Africa, 

 have no cheek- 

 pouches, but pos- 

 sess long tails and 

 callosities, while 

 the highest group 

 of the sub-order, 

 the so-called an- 

 thropoids, have 

 no tails, callosi- 

 ties, nor cheek 

 pouches. The 

 chimpanzee is a 

 black-haired ape, 

 a native of Guinea, 

 which sometimes 

 reaches a height 

 of five feet. The 



