ORDER QUADRUMANA.. 849 



crest ; five molar teeth ; tail not prehensile and sometimes 

 very short; cheek -pouches ; callosities. 



" The Magot, {Simia Inuus,) the Papion, or dog-headed 

 monkey, for these two species make but one, {Simia Sphinx,) 

 and Cynocephalus, (Linn.) the Simia Hamadryas. 



" Genus VI. Baboon, Papio. Muzzle considerably 

 elongated; facial angle 30°; head flattened; superciliary 

 crest; five molar teeth; short tail; cheek-pouches; large 

 callosities. 



" The Mandrills and the Choras, Simia Maimon and 

 Mormon, the Pongo of Batavia. 



" Genus VII. Alouatte, Cebus. Oblique visage; fa- 

 cial angle 30°, palatine 25°, pyramidical head ; six molar 

 teeth ; long prehensile tail ; no cheek-pouches, nor callo- 

 sities. 



" The Alouatte and Ouarina of Buffbn, Simia Beelzebut 

 et Seniculus (Linn.)" 



Such was the first classification of this part of the quadru- 

 mana formed by our author, in conjunction with M. GeofF- 

 roy. Subsequently in his " Tableau Elementaire de V Histoire 

 Naturelle des Animaux" he revised his former labour, ma- 

 king some necessary alterations in the indication of the 

 facial angle, and suppressing the genus Magot which he 

 united with the Macaciues, simplifying also the characters 

 of those genera which he termed families. The following 

 is a view of the system thus re-modified. 



I. The Apes, properly so called: with round head; muz- 

 zle very slightly prominent (facial angle 65°), without tail 

 or cheek-pouches. 



The Orang-Outang, {Simia Satyrus.) 



II. The Sapajous. Head flattish, muzzle not very pro- 

 minent (60°), long tail, without cheek-pouches; hairy but- 

 tocks; nostrils pierced at the sides of the nose. 



The Coa'ita, {Simia Paniscus.) 



Vol. I. 2 B 



