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 M, skull of Anaptomorphus homunculus Cope, natural size. 

 Fig. b, 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 ol Anaptomorphus atnu- 

 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 



