_T[amiasciurus]. h[udsonicus]. streatori_ Howell, Proc. Biol. Soc. Washington, 49:135, August 22, 1936. _Type._--Obtained at Ducks, British Columbia; type in American Museum of Natural History. _Racial characters._--Similar to _richardsoni_ but smaller and darker, redder above. _Measurements._--Seven males from north-central Washington average: total length 330; length of tail 129; hind foot 51; ear 23. _Distribution._--Northeastern Washington. Marginal occurrences are (from Taylor and Shaw, 1929: 17): Beaver Creek, Ruby Creek, and head of Lake Chelan. _Remarks._--This race reaches Washington from the interior of British Columbia. Intergradation between _hudsonicus streatori_ and _h. richardsoni_ takes place over much of northeastern Washington. [Illustration: FIG. 90. Distribution of the red squirrel and Douglas squirrel in Washington. A. _Tamiasciurus hudsonicus richardsoni._ B. _Tamiasciurus hudsonicus streatori._ C. _Tamiasciurus douglasii douglasii._] =Tamiasciurus hudsonicus richardsoni= (Bachman) _Sciurus richardsoni_ Bachman, Proc. Zoöl. Soc. London, p. 100, 1838. _Sciurus hudsonius Richardsoni_ True, Proc. U. S. Nat. Mus., 7:595, 1884. _Sciurus hudsonicus richardsoni_ Allen, Bull. Amer. Mus. Nat. Hist., 10:265, July 22, 1898. _Sciurus hudsonicus richardsoni_ Miller, U. S. Nat. Mus. Bull., 128:211, April 29, 1924. _Tamiasciurus hudsonicus richardsoni_ Svihla and Svihla, Murrelet, 21:55, December 20, 1940. _Type._--Obtained at the head of the Big Lost River, Custer County, Idaho. _Racial characters._--Color paler, especially on back. _Measurements._--Four males and 4 females average, respectively: total length 339, 339; length of tail 133, 131; hind foot 54, 51; ear 24, 24; weight 256, 266. _Distribution._--The Blue Mountains of southeastern Washington. =Tamiasciurus douglasii douglasii= (Bachman) Douglas squirrel _Sciurus douglasii_ Bachman, Proc. Zoöl. Soc. London, p. 99, 1838. _Sciurus hudsonius Douglasii_ True, Proc. U. S. Nat. Mus., 7:595, 1884. _Sciurus douglasii douglasii_ Miller, U. S. Nat. Mus. Bull., 128:212, April 29, 1924. _Sciurus douglasii cascadensis_ Taylor and Shaw, Occ. Papers Chas. R. Conner Mus., no. 2:18, December, 1929. _Tamiasciurus douglasii_ Holdenried, Jour. Mamm., 21:406, November 14, 1940. _Type._--Obtained near the mouth of the Columbia River by David Douglas. _Measurements._--Fifteen males and 10 females from the lowlands of western Washington average, respectively: total length 317, 320; length of tail 121, 126.7; hind foot 50, 49.4; ear 23.2, 22.6; weight 204, 202 grams.