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.
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.