VOL. XVII, PP. 153-156 OCTOBER 6, 1904 



PROCEEDINGS 



OP THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



FOUR NEW BEARS FROM NORTH AMERICA. 

 BY C. HART MERRIAM. 



Notwithstanding the large number of bears already known 

 from North America, four more appear to require recognition . 

 Three of these are from Alaska ; the fourth is a small form of 

 the Black Bear from the desert mountains of eastern Mexico. 



Ursus eulophus sp. nov. 



Type from Admiralty Island, southeastern Alaska. No. 81,102. Adult 

 male. U. S. National Museum, Biological Survey Collection. 1896. Lieut. 

 G. T. Emmons. 



Characters. Size large, equaling the Sitka bear ; color said to be very 

 dark brown. Sagittal crest remarkably high anteriorly ; frontals extraor 

 dinarily elevated posteriorly ; rather narrow interorbitally ; frontal shield 

 long and high and in a single flat plane sloping strongly upward from an 

 terior third of nasals almost to fronto-parietal suture (not decurved poste 

 riorly) ; braincase narrowed and compressed anteriorly, passing gradually 

 into sagittal crest ; rostrum rather narrow (as in horribilis, as contrasted 

 with the broader sitkensis) ; maxillae long, reaching back into frontals to 

 beyond plane of nasals ; interpterygoid fossa long and narrow ; molars 

 larger than in the grizzlies, fully as large as in sitkensis ; lower carnassial 

 slender, especially anteriorly ; nT2 narrower and less rectangular than in 

 sitkensis; last lower premolar smaller and thinner than in sitkensis ; incisors 

 small, as in horribilis (very much smaller than in sitkensis, particularly the 

 outer incisor). 



28 PROC. BIOL. Soc. WASH. VOL. XVII, 1904. (153) 



