TEE APES. 



307 



angle, and the hemispheres of the brain are well furrowed. 

 They have highly-colored,, naked callosities over the 

 ischiatlc bones, and cheek-pouches for the temporary re- 

 ception of the food. Of the baboons, with.their dog-like 

 muzzles and short tails, the mandrills are the most notice- 



FiG. 332. — Orang-outang or Mias. From Lutken's Zoology. 



able, with their white beard, scarlet lips, and blue cheeks; 

 they are less arboreal than the macaques of Asia, running 

 about over rocks on all-fours. The common monkeys of 

 menageries are the macaques {Macacus) of India. All the 

 foregoing catarrhine monkeys have a simple stomach, as in 

 man, but in the sacred mcffikey of India {Sem7iopithecus, 

 Fig. 330), and the African thumbless Colobus, the stomach 

 is more complex. 

 The apes live in trees, only occasionally walking on the 



