:N0RTII AMERICAN RECENT MAMMALS. 211 



*Sciurus hudsonicus richardsoni (Bachman). 



1838. Sciurus richardsoni Bachman, Proc. Zool. Soc. London, 

 p. 100. 



1885. Sciurus hudsomus richardsoni True, Proc. U. S. Nat. 

 Mus., vol. 7 (1884), p. 595. 1885. 



1898. Sciurus hudsonicus richardsonii Allen, Bull. Amer. Mus. 

 Nat. Hist., vol. 10, p. 265. July 22, 1898. 



Type Locality. — Head of Big Lost River, Fremont County, 

 Idaho. 



Range. — Western border of northern Montana, central and 

 northern Idaho, northeastern Oregon, northeastern Washing- 

 ton, and thence northward into southeastern British Columbia; 

 in other words, the Bitterroot and Coeur d'Alene Mountains 

 on the western border of Montana; the Lost River, Salmon 

 River, Pahsmieroi and Saw Tooth Mountains in central Idaho, 

 and westward in the Craig and Seven Devils Mountains to the 

 Powder River and Blue Mountains of Oregon; thence through 

 northern Idaho, and west in the mountains of northeastern 

 Washington to Colville, and northward into the Kootenai dis- 

 trict of eastern British Columbia. The extent of its range 

 northward along the main Rocky Mountains can not now be 

 determined, owing to absence of material from the area in 

 question. It appears to reach its maximum of differentiation 

 in the Coeur d'Alene and Bitterroot Mountains, although 

 specimens from central Idaho (the tvpe region) are scarcely 

 distinguishable. 



*Sciurus hudsonicus streatori Allen. 



1898. Sciurus hudsonicus streatori Allen, Bull. Amer. Mus. Nat. 

 Hist., vol. 10, p. 267. July 22, 1898. 



Type Locality. — Ducks, British Columbia, Canada. 



Range. — Central part of northern Washington, from the Colum- 

 bia River northward over central British Columbia. It occu- 

 pies the Okanagan district of Washington from the head of 

 Lake Chelan northward. At Lake Chelan and Fort Spokane 

 it meets S. douglasii without intergrading; at Marcus and Con- 

 conuUy it intergrades with S. h. nchardsonii, which occupies 

 the area immediately to the eastward, as it does also in the 

 Kootenai district in southeastern British Cokunbia. 



*Sciurus hudsonicus vancouverensis Allen. 



1890. Sciurus hudsonicus vancouverensis .Vllen, Bull. Amer. 



Mus. Nat. Hist., vol. 3, p. 165. November 14, 1890. 

 Type Locality. — Duncan Station, Vancouver Island, British 



Colvmibia, Canada. 

 Range. — Vancouver Island, and the coast region of northern 



British Columbia, north at least to Sitka. 



Regarded by Osgood (North Amer. Fauna, No. 19, p. 27, October (i, 1900) 

 as a distinct species. 



