348 CLASS MAMMALIA, 



Mammalia. 



Order 1. Quadrumana. 



Section the First. 

 Four incisive teeth above and below. Monkeys. 



" Genus I. Orang, Simia. Short muzzle ; facial angle 

 60°, rounded head, four or five molar teeth ; no tail nor 

 cheek-pouches ; sometimes slight callosities. 



" The Grang-Outang, the Jocko, and the Gibbon. 



" Genus II. Sapajou, Callithrix. Short muzzle ; fa- 

 cial angle 60° ; flattish head ; prominent occiput ; six molar 

 teeth; long tail, often prehensile; no cheek-pouches, no 

 callosities. Nostrils very much apart. 



" The Sapajous and Sagoins of Buffon (cebus and calli- 

 thrix of Erxleben,) the Alouatte and the Ouarina excepted. 

 (Simia beelzebut et seniculus.) 



"Genus III. Guenon, cercopithecus. * Short muzzle; 

 facial angle 50° and more ; head slightly flattened ; occiput 

 not very prominent ; five molar teeth ; no superciliary crest ; 

 long tail not prehensile ; cheek-pouches, and very fre- 

 quently callosities. 



" The Guenons of Buffon with round heads ; the Simicc, 

 rolowai, diana, talapoin, petaurista, mona, rubra, nem&us, 

 sabtea, cephus, cethiops, nasica, (Linn.) 



" Genus IV. Macaque, pithecus. Muzzle tolerably 

 short ; facial angle 50° ; flattened head ; superciliary crest ; 

 five molar teeth ; long tail, not prehensile ; cheek-pouches ; 

 most commonly callosities. 



'■* The Guenons of Buffon, with short muzzle and de- 

 pressed nose, some of his baboons; simia veter, silenus, 

 faunus, cynomolgus, sinica, (Linn.) 



Genus V. Magot, cynocephalus. Elongated muzzle ; 

 facial angle 40°; flattened head; frequently superciliary 



