Sciurus griseus Ord, 1818 . J. Phys. Chim. Hist. Nat. Arts Paris, 87:152.

TYPE LOCALITY: "The Dalles of the Columbia" [River, Wasco Co., Oregon, USA] .

DISTRIBUTION: C Washington, W Oregon, and California (USA) to Baja California Norte (Mexico).

SYNONYMS: anthonyi Mearns, 1897; fossor Peale, 1848; heermanni Le Conte, 1852; leporinus Audubon and Bachman, 1841; nigripes Bryant, 1889 .

COMMENTS: Subgenus Hesperosciurus (Hall, 1981:433) .