THE TEETH OF THE HIGHER APES AND MAN 18 ( J 



twice the size of the human tooth. It is shaped 

 like the Baboon's, with a sharp anterior edge with 

 two sharp trihedral cusps. The second lower 

 premolar is subquadrate, with three tubercles. 



The true molars above are quaclricuspid, and 

 are relatively larger than the premolars ; in the 

 Orang they are relatively smaller. There are five 



Fig. 79. — Teeth of Go 



cusps on the lower molars, the two inner ones 

 being sharpest. The tubercles are rounded and 

 more prominent than in man. 



The Gorilla (Fig. 79) is the largest of the Pri- 

 mates and Apes, and approaches nearest to man 

 in general organization. The Gorilla, with the 

 Chimpanzee, is found in the Gaboon region of 

 West Africa. Although close to man in many de- 



