Order Rodentia - Family Sciuridae Author Robert S. Hoffmann Author Charles G. Anderson text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 419 465 book chapter http://doi.org/10.5281/zenodo.7353130 1-56098-217-9 7353130 Spermophilus townsendii Bachman, 1839 . J. Acad. Nat. Sci. Philadelphia, 8:61 . TYPE LOCALITY: "On the Columbia River, about 300 miles above its mouth." Restricted by Howell (1938:60 , 62) to west bank of Walla Walla River near confluence with Columbia River, [near Wallula, Walla Walla Co., Washington , USA ] . DISTRIBUTION: SE Washington ( USA ), S of Yakima River and W and N of Columbia River. SYNONYMS: [ mollis ] yakimensis Merriam, 1898. COMMENTS: Subgenus Spermophilus ( Hall, 1981:382 ) . Formerly included two cytotypes ( mollis , canus ) now considered distinct species ( Nadler et al., 1984 ; Vorontsov and Lyapunova, 1970 ). Reviewed by Rickart (1987 , Mammalian Species, 268).