300 



CARNIVORA 



notably from that of Ursus ardos in tho reduction of tlie molars 

 and increased size and prehensiveness of the canines and incisors, 

 the details of the individual teeth present little that is specially 



Via. 55. 

 Thalaretos mariUmua. 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 



