1904.] Allen, Mammals from Alaska. 285 



The long, soft, woolly coat and the light yellowish brown 

 -color of the dorsal area are in strong contrast with the short, 

 harsh, and very dark dorsal area in U. d. gyas. 



The type of U. merriami, a skull, is apparently not an 

 average example, this skull being relatively longer and nar- 

 rower than any of the six skulls here referred to that species, 

 as shown by the detailed measurements given in the subjoined 

 table, which, for comparison, gives the measurements of (i) 

 an old male skull of U. middendorfji from Kadiak Island; (2) 

 an old male skull of U. dalli gyas from Muller Bay, Alaska 

 Peninsula; (3) the type of U. merriami, and of the six other 

 skulls referred to it, all from Muller Bay; (4) an old female 

 skull of U . kidderi from the hills south of Kussilluf Lake, 

 Kenai Peninsula. Nos. 19766 (U. midden dorffi) , and 21802 

 (U. dalli gyas) are very old male skulls; Nos. 21807, 21809, 

 and 17622 (type) are middle-aged male skulls of U. merriami; 

 Nos. 21810, 21808, 21801, and 21803 are female skulls of U. 

 merriami, of which 21810 is very old, with all the sutures 

 obliterated; 21803 (unfortunately imperfect) is also old, but 

 most of the sutures are still distinct, while the other two skulls 

 are middle-aged. 



This series of specimens shows (i) that there are two dis- 

 tinct types of bears on the Alaska Peninsula; (2) that U. 

 merriami is much more nearly related to U. kidderi than to 

 U. dalli gyas; (3) that neither of them are very closely related 

 to U. middendorffi; (4) that the examination of a much larger 

 amount of material is necessary before the number of species 

 and the relationships of the big Alaska brown bears can 

 be satisfactorily settled. I here give (Figs. 1-9) three views 

 each of three quite distinct types of skulls, namely, the big 

 Kadiak Bear (U. middendorffi), and the two species occurring 



