2 PRIMATES, CARNIVORES AND UNGULATES 



most complete account of the Malayan Mammals. The other 

 references explain themselves and are to various journals or 

 proceedings not so comprehensive or accessible. 



Order PRIMATES. 

 (Man, Apes, Monkeys and Lemurs). 



Key to the Suborders. 



A. Second digit of foot with a flat nail like those of the 



other toes : no interval between central upper in- 

 cisors : bony orbit of skull completely enclosed 

 behind ... ••• ... AXTHROPOIDEA. 



B. Second digit of foot with a long claw differing from 



the nails of the other toes : an interval between 

 the central upper incisors: bony orbit of skull 

 not enclosed behind ... ... LEMUROIDEA. 



Suborder ANTHROPOIDEA. 

 (Mankind and Monkeys). 



Key to the Families. 



A. No tail: stature erect: great toe not opposable : arm 



shorter than leg : no interval between upper 

 canines and incisors ... ... Hominid^e. 



B. No tail: stature semi-erect: great toe opposable : arm 



longer than leg : an interval between upper can- 

 ines and incisors ... ... SiMinxE. 



0. Tail present : stature not erect : great toe opposable : 

 arm not longer than leg : an interval between 

 upper canines and incisors ... Cercopithechle. 



Jour. Straits Branch 



