ORDER QUADRUMANA. 



351 



3. 

 Sapajou. 



Sapajou. 



4. 



Sagoin. 



Sagoin. 



5. 

 Alouatte. 



Alouatte. 



Four incisive teeth in each jaw; facial 

 angle 60°; no cheek-pouches; prehensile tail; 

 hairy buttocks. 



Sapajou. Sapajou Paniscus. 



Four incisive teeth in each jaw; facial 

 angle 6°; no cheek-pouches; tail not prehen- 

 sile ; hairy buttocks. 



Sagoin Ouistiti. Sagoin lacchus. 



Four incisive teeth in each jaw ; pyramidi- 

 cal head ; no cheek pouches. Prehensile tail ; 

 hairy buttocks. 



Howling Alouatte. Alouata Beelzsbut, 



6. Four incisive teeth in each jaw ; facial 



Macaque. < angle 45° ; cheek-pouches; callous buttocks. 



Macaca. \ Macaque Magot. Maccaca Inuus. 



7. 



PoNGO. 



Pongo. 



8. 

 Baboon. 



Cynocepha- ' 

 lus. 



Four incisive teeth in each jaw ; facial an- 

 gle 30°; cheek -pouches ; posterior callosities ; 

 no tail. 



Pongo Borneo. Pongo Borneo. 



Four incisive teeth in each jaw ; facial an- 

 gle 30° ; cheek-pouches ; tail ; posterior cal- 

 losities. 



Baboon Mandrill. Cynocephalus Maimon. 



On comparing this distribution of the monkeys with that 

 of Cuvier and Geoffroy, we perceive that Lacepede has es- 

 tablished two additional genera, the Sagoin and the Pongo, 

 that he places the Guenons before the Sapajous ; that he 

 has united, in imitation of Cuvier, the genus of the Magot 

 with that of the Macaque ; and that the Alouattes do not 



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