300 



CAKNIVOEA 



notably from that of Ursus arctos in the reduction of the molars 

 and increased size and prehensiveness of the canines and incisors, 

 the details of the individual teeth present little that is specially 



FIO. 55. 

 Thalarctos maritimus. x ;. 



noteworthy. General form of upper incisors as in Ursus arctos, 

 but points of i^ and i'^ narrower and more hooked backward ; P 

 with cusp more slender and ridges nearly obsolete ; lower incisors 



