1 36 Bulletin American Museum of Natural History. [Vol. XVI. 



femur are considerably less bear-like than in .4. major, judg- 

 ing from Filhol's description and figures ; ' the vertebrae are 

 bear-like in many respects, but quite peculiar in the length 

 and form of the spines. The skull and teeth suggest an in- 

 dependent specialization, parallelling that of the bears in a 

 few characters, but in most respects peculiar. A further dis- 

 cussion of its relationship is reserved for a later paper. 



The animal must have been of peculiar appearance, not 

 greatly resembling either bears or dogs. The enormous head 

 was carried very low (if this is the correct interpretation of 

 the high cervical spines), more so than in the bears, much 

 more than in the wolves; the muzzle was long and heavy; 

 the contour of the head was straight, and continuous with 

 the neck; the ears of moderate size, jaw very long and deep, 

 wide gaping, cheeks rather wide. The neck was as massive 

 as in U. maritimus , the trunk longer and slimmer, the legs 

 shorter, sharply flexed at the knees, the thigh not as free 

 from the trunk as in Ursidae, but much more like the condi- 

 tion seen in the Canidae. 



' Mammifferes fossiles de St. Gerand le Puy. 



