THE TEETH OF THE HIGHER APES AND MAN 



199 



ened about the roots of the teeth to form prom- 

 inent ridges just beyond the necks. The gums 



Fig. 81. — Teeth of African Negro. 



are dark or mottled, the pigmentation of the skin 

 extending even to the mucous surfaces. Some of 



FlG. 82. — Occlusal view of teeth of African Negro. 



the Polynesian negroes have small arches, with 

 small, finely-formed teeth. 



The Mongoloid races have the jaws rounded in 

 relation to the brachycephalic skull, although still 



