CHAP. IV] THE GENERAL ANATOMY OF GORILLA 



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are largely so, and in all cases the animal frequents woodlands. 

 The Gorilla is the largest of the Simiidae, and the adult male is 

 the heaviest Primate mammal, surpassing even the Hominidae. 

 Estimates of the stature of Gorillas are not usually reliable, but 



Fig. 99. An adult male Gorilla from the Sangha District, W. Africa. 

 (With permission.) 



there is no doubt that several varieties exist, and these are distin- 

 guished (to some extent at least) in point of size. The status of 

 these varieties opens up an interesting but not a simple problem, 

 viz. how far they represent local species, or variants more properly 



