CONTRIBUTIONS TO THE NATURAL HISTORY OF ALASKA. 207 



Ursus horribilis Ord. Grizzly Bear. 



As I have not seen an undoubted individual of this beast within the territory I can only give 

 the assertions of others who have described an immense bear from the interior along the south- 

 eastern portions of the Yukon River. 



From the description I should conclude that the Grizzly Bear was referred to. Along that 

 river the creature referred to ventures nearly to the Arctic circle. 



Ursus richardsoni Aud. & Bach. Barren-ground Bear. 



As the name indicates, this species is confined to the treeless areas of the territory. It is suffi- 

 ciently plentiful for all purposes; having its center of abundance on the area about the eastern 

 end of Aliaska, although ranging to the extreme northern land. It occurs on Unimak, the eastern 

 Aleutian Island. 



The largest skin of a wild beast that I ever saw was taken from a huge male of this species 

 killed within a few hundred yards of Pastolik, near the Yukon Delta. 



Family ODOB^NLTLE. Walruses. 



Genus Odob^nus. 



Odob^enus obesus (111.) Allen. Pacific Walrus. 

 Bering Sea, rarely descending south of the Aleutian Islands. Formerly had a greater south- 

 ern range. Now restricted to the northern portions of the Pacific. Occurs very rarely among the 

 Aleutian Islands. A two-year old male was killed on Attu Island in September, 1880. 



Family PROCYONID.E. Raccoons. 

 Genus Procyon. 



Procyon lotor (Liun6) Storr. Raccoon. 

 I have heard, on what I consider reliable authority, that the Raccoon is not uncommon in the 

 south portions of the Alaskan mainland. 



Family MUSTILID^E. Weasels. 



Genus Enhydris. 



Enhydris lutris (Liun6) DeKay. Sea Otter. 

 Occurs now only in south Bering Sea and North Pacific Ocean. Most plentiful between 

 latitudes fifty six and fifty north. 



Genus Ltjtra. 



Lutra canadensis (Turton) F. Cuv. North American Otter. 

 Entire mainland of Alaska south of latitude sixty-eight. 



Lutra felina Molina. Chinchimen. 

 This species is supposed to occur in the southern portions of the Alaskan mainland only. 



Genus Gulo. 



Gulo LUSCUS (Linn6) Sabine. Wolverine. 



All the mainland of Alaska ; more plentiful near the wooded areas. 



Genus Putorius. 



Putorius vison (Schreber) Gapper. American Mink. 

 All the mainland of Alaska south of latitude sixty-eight. Very abundant on certain marshy 

 areas of middle Alaska. 



