PHYLOGENY. 151 



attention to the fact that in the dark races the roots of 

 the last superior molar are distinct from each other, 

 while in the Indo-Europeans they are known to be 



Fig. 38. Fig a, skull of Anaptomorphus homunculus Cope, natural size. 

 Fig. />, same, oblique view, displaying the large cerebral hemispheres. Fig. c, 

 superior view of skull, natural size. Fig. d, inferior view, three-halves natural 

 size. Lower figs, a, b, and c, left branch of lower jaw of Anaptomorphus eemu- 

 lus Cope, twice natural size; a, from left side; b, inner side; c, from above. 



more or less fused together. These now well-known 

 characteristics of human dentition constitute one of 

 the examples of transition from a simian to a human 



