ORDER QUADRUMANA. 221 



gled with that of the Orang-Outang, inasmuch as the 

 length of its arms, that of the spinal apophyses of 

 the cervical vertebrae, the tuberosity of its calcaneum 

 may facilitate for it the vertical position. Its height 

 is nearly that of man. Its skeleton is represented 

 in Audebert, vol. u. f. 8. 



The Sapajous, or Monkeys of America, 



Have four cheek-teeth more than the other monkeys, 

 thirty-six teeth in all, long tail, no cheek-pouches, 

 hairy buttocks, and without callosities, the opening 

 or piercing of the nostrils at the sides of the nose 

 and not underneath. All the large quadrumana of 

 the new world belong to this division. The large 

 intestines are less inflated, and the caecum longer and 

 narrower than in the preceding species. 



Some have prehensile tails, that is, their extremity 

 is capable of being twisted round a body with suffi- 

 cient force to grasp it like a hand. These last, more 

 especially retain the name of Sapajous, (Cebus, 

 Erxleben.) 



At their head may be placed the Alouattes(Mycetes 

 Illiger) or howling monkeys, which are distinguished 

 by a pyramidal head, the upper jaw of which descend 

 much below the cranium. The lower jaw has its as- 

 cending branches very high, for the purpose of lodging 

 a bony drum or barrel, formed by an inflation of the 

 hyoid bone which communicates with the larynx 

 and gives to the voice of these animals an enormous 

 volume and frightful sound. Thence comes their 



Vol. I. R 



