Microtus (Mynomes) townsendii Bachman 1839

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1018

Microtus (Mynomes) townsendii Bachman 1839

Microtus (Mynomes) townsendii Bachman 1839 , J. Acad. Nat. Sci. Philadelphia, 8: 60.

Type Locality: USA, Oregon, Multnomah Co., Wappatoo (Sauvie) Isl, lower Columbia River near mouth of Willamette River (as located by Bailey, 1900:46).

Vernacular Names: Townsend's Vole.

Synonyms: Microtus (Mynomes) cowani Guiguet 1955 ; Microtus (Mynomes) cummingi Hall 1936 ; Microtus (Mynomes) laingi Anderson and Rand 1943 ; Microtus (Mynomes) occidentalis (Peale 1848) ; Microtus (Mynomes) pugeti Dalquest 1940 ; Microtus (Mynomes) tetramerus (Rhoads 1894) .

Distribution: Wet meadows and marshes of Pacific Northwest, from extreme SW British Columbia, Canada, to NW California, USA, including Vancouver and neighboring islands.

Conservation: IUCN – Lower Risk (cd) as M. t. cowani , otherwise Lower Risk (nt).

Discussion: Subgenus Mynomes , pennsylvanicus species group ( Zagorodnyuk, 1990). Broadly allied with M. pennsylvanicus and M. montanus ( Anderson, 1959; Hooper and Hart, 1962; Modi, 1987); sister species to M. canicaudus according to phyletic reconstructions of cytochrome b sequences ( Conroy and Cook, 2000 a). See Cornely and Verts (1988, Mammalian Species, 325).