234 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. III. 



FAM. 



URSUS. 



Ursus altifrontalis. Sp. nov. 



Type locality. Shore of Lake Crescent, Clallam County, 

 Washington. 



General character. Skull: forehead, very broad and high, bulging 

 on sides anteriorly, and rounded on top; nasals, long, broad, upper 

 outline concave, the posterior end rising high on forehead, and 

 extending considerably beyond the ends of the maxillae. Upper 

 outline of skull exceedingly convex, highest at anterior portion of 

 frontals, and descending rapidly, anteriorly and posteriorly; occipital 

 crest prominent; zygomatic arches widely flaring; basioccipital and 

 basisphenoid very broad, the latter rounded anteriorly, not pointed; 

 pterygoid fossa short, broadest anteriorly and rounded; palate of 

 nearly equal breadth from posterior margin of last molar to incisors: 

 muzzle broad and heavy, greatly swollen at base of canines; teeth 

 greatly worn, majority of the molars smooth, their characteristics 

 not perceptible. 



Color. Black, nose tan color. 



Measurements. . Skull: total length, 300; occipito- nasal length, 

 287; Hensel, 255; zygomatic width, 190; interorbital constriction, 

 75; across postorbital processes, 106; length of nasals, 80; width 

 anteriorly, 32; palatal length, 138: width of posterior end of 

 last molar, 47; at anterior end of first molar, 45; at posterior 

 edge of canine, 40; breadth of muzzle at outer sides of canines, 68; 

 greatest breadth of basioccipital, 49 ; of basispenoid, 30 ; palatal 

 arch to end of pterygoid, 50; length of crown of last molar, 27; 

 width, 15; from anterior edge of canine to posterior edge of last 

 molar, alveolar border; TOO; length of mandible from angle to sym- 

 physis on top, 202; height at condyle, 32; at coronoid process, 86; 

 length of lower molar series, alveolar border, 66. 



The specimen above described was killed on the shores of Lake 

 Crescent, near the road connecting that body of water with Lake 

 Sutherland. The skull was figured in my paper on the mammals of 

 the Olympic Mountains, and mention was made in the text of the 

 exceedingly high forehead, and the possibility of the example repre- 

 senting a distinct form. On comparing this skull with those of black 

 bears from other parts of the United States, and with those of cinna- 

 mon bears, from Copper Mines, New Mexico, types of Baird's U. 

 cinnamomeus, and from the Sierra Madre, State of Chihuahua, 



