ON A PLEISTOCENE CAVE DEPOSIT—GIDLET. 



97 



between the anterior cheek-teeth, combined with a less wide branching 

 of the horizontal rami in general; (3) a relatively larger symphysis, 

 which IS more sharply constricted and more flattened laterally behind 

 the canines; and (4) longer diastema 

 between canines and cheek-teeth. 



A second specimen, a portion of the 

 right maxillary (Cat. No. 7664, U. S. 

 Nat. Mus.), is probably referable to this 

 species. It contains the two molars, 

 which do not differ materially, except 

 in their somewhat smaller size, from the 

 corresponding ones of U. americanus. 



Fig. I.-Ursus (Euarctos) vitabilis. Type-specimen. Outer view or right lower jaw, 2-3 nat. 

 Superior view, nat. size. 



size. 

 95278°— Proc.N.M.vol.46- 



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