Tamiasciurus douglasii (Bachman, 1839) . Proc. Zool. Soc. Lond., 1838:99 [1839].
TYPE LOCALITY: "Shores of Columbia River" Restricted by Allen (1898:284) to mouth of Columbia River, [Clatsop Co., Oregon, USA].
DISTRIBUTION: Coast and Cascade ranges and Sierra Nevada of SW British Columbia (not Vancouver Isl) (Canada) to S California (USA).
SYNONYMS: belcheri (Gray, 1842); cascadensis (J. Allen, 1898); mollipilosus (Audubon and Bachman, 1841); orarius (Bangs, 1897); suckleyi (Baird, 1855).
COMMENTS: Formerly included mearnsi; see Lindsay (1981). Hall (1981:466) suggested that douglasii might be conspecific with hudsonicus, but Lindsay (1982) showed that apparent hybrids were probably due to character convergence.