286 Bulletin American Museum of Natural History. [Vol. XX. 



on the Alaska Peninsula, all from material obtained by Mr. 

 Stone. As the type skull of U. merriami has already been 

 figured (this Bulletin, XVI, 1902, pll. xxx and xxxi), I have 

 selected an average skull from the series obtained in 1903, 

 which should be carefully compared with the figures of the 

 type skull, which is either exceptional in its narrowness and 

 great elongation, or else the later series of specimens now 

 referred to U. merriami represents still a third species, related 

 to the kidderi type of bear. 



The figures are all made to the same scale, and are about 

 one fourth natural size. 



21. Ursus middendorffi Merriam. KADIAK BEAR. Eight 

 skulls, mostly adult, Kadiak Island. 



22. Ursus kidderi Merriam. KIDDER'S BEAR. Two speci- 

 mens (skins and skulls), an adult and yearling, both females, 

 Caribou Hills, Sept. 3 and 4. Adult female, total length, 

 1778; tail vertebrae, 178; hind foot, 280; height at shoulder, 

 916; skull, greatest length, 355; zygomatic breadth, 217; 

 mastoid breadth, 148. (For further measurements see table, 

 p. 291.) 



In age the adult female (No. 21811) is comparable with 

 No. 21803 of U. merriami. The external measurements, how- 

 ever, are much less, except that the tail is longer; the skull 

 measurements for the most part agree closely with some of 

 the younger female skulls of U . merriami, even to the size of 

 the teeth. 



23. Ursus americanus Pallas. BLACK BEAR. One speci- 

 men (skin and skull), adult female, Kussilluf Hills, August 19. 



24. Putorius cicognanii alascensis (Merriam). JUNEAU 

 WEASEL. Six specimens, four males and two females, taken 

 as follows: Sheep Creek, 2, Aug. 14 and 20; Seldovia, 4, Oct. 

 24. One of the Seldovia specimens is in the white winter 

 pelage, and one is in change, the other two still retaining the 

 summer coat, somewhat lightened, however, by the incoming 



[August, 1904.] 19 



