318 



ANATOMY OF VERTEBRATES. 



surface, which also bears a longitudinal groove at the base of the 



fj CJ 



crown. The canine is rather more than twice the size of that 



253 



Dentition of an adult male Troglodytes Gorilla, nat. size. cm'. 



254 



Dentition of an adult female Gorilla, uat. size. cm'. 



in the female. In the male Gorilla the canine is more in- 

 clined outward ; the anterior groove 011 the inner surface of the 



