S1MIADJE. O 



7. Labiopyoa. Nose flattened. Body stout. 



8. Semnopithecus. Nose flattened. Body slender. 



b. Thumb none or very rudimentary. Africa. 



9. Colobus. Back uniformly hairy. Nostrils close together. 



10. Guebeza. Back with a mantle of long hairs on each side. Nos- 



trils rather wide apart. 



Tribe IV. Cebcopithecina. Head round or oblong. Nostrils on the 

 slope of the face. Hands and feet short. Thumb large. Stotnach 

 simple. 



* Head rounded. Face short. Last lower grinder with three or four 



tubercles. Africa. 



11. Miopithecus. Face flat. Whiskers small. Last lower grinder 

 with three tubercles. Africa. 



12. Cebcopithecus. Face short. Whiskers round. Last lower grinder 

 with four tubercles. Africa. 



13. CiLLOBOCEBua. Face rather produced. Whiskers rigid, roflexed. 

 Last lower grinder with four tubercles. Africa. 



* * Head oblong. Face more or less produced. Last lower grinder with 



Jive tubercles. 



14. Cercocebus. Body slender. Face black. Eyelids white. Tail 

 elongate. Africa. 



15. Macacus. Body stout. Face more elongate. Tail long or mode- 

 rate. Asia. 



1G. Silenus. Body stout. Face elongated. Tail moderate, tufted at 

 the end. Neck maned. Asia. 



17. Inuus. Body stout. Face elongate. Tail none. Crown smooth. 



Africa, Europe. 



18. Gelada. Body stout. Face much elongated. Tail moderate, 



tufted. Neck maned. Africa. 



19. Cynopituecus. Body stout. Face much elongated, swollen on 

 sides of nose. Tail none. Crown with a compressed crest. Asia. 



Tribe V. Cynocephalina. Head elongate. Nostrils at the end of 

 the truncated nose. Hands and feet short. Thumb large. Stomach 

 simple. Last molar with Jive tubercles. Africa. 



20. IlAMADBYAa. Tail, end tufted. Neck maned. 



21. Cynocephalus. Tail moderate. Neck not maned. 



22. Ch^bopithecus. Tail very short, hairy all round. Face two- 



grooved, black. 



23. Mormon. Tail veiy short, erect, bald beneath. Face grooved, brnrbt- 

 coloured. 



