Thomomys (Thomomys) mazama Merriam 1897

Thomomys (Thomomys) mazama Merriam 1897, Proc. Biol. Soc. Wash., 11: 214.

Type Locality: USA, Oregon, Klamath Co., Anna Creek near Crater Lake, Mt. Mazama, 6,000 ft. (1,829 m).

Vernacular Names: Western Pocket Gopher.

Subspecies::

Subspecies Thomomys (Thomomys) mazama subsp. mazama Merriam 1897

Subspecies Thomomys (Thomomys) mazama subsp. couchi Goldman 1939

Subspecies Thomomys (Thomomys) mazama subsp. glacialis Dalquest and Scheffer 1942

Subspecies Thomomys (Thomomys) mazama subsp. helleri (Elliot 1903)

Subspecies Thomomys (Thomomys) mazama subsp. hesperus (Merriam 1901)

Subspecies Thomomys (Thomomys) mazama subsp. louiei Gardner 1950

Subspecies Thomomys (Thomomys) mazama subsp. melanops (Merriam 1899)

Subspecies Thomomys (Thomomys) mazama subsp. nasicus (Merriam 1897)

Subspecies Thomomys (Thomomys) mazama subsp. niger (Merriam 1901)

Subspecies Thomomys (Thomomys) mazama subsp. oregonus Merriam 1901

Subspecies Thomomys (Thomomys) mazama subsp. premaxillaris Grinnell 1914

Subspecies Thomomys (Thomomys) mazama subsp. pugetensis Dalquest and Scheffer 1942

Subspecies Thomomys (Thomomys) mazama subsp. tacomensis Taylor 1919

Subspecies Thomomys (Thomomys) mazama subsp. tumuli Dalquest and Scheffer 1942

Subspecies Thomomys (Thomomys) mazama subsp. yelmensis Merriam 1899

Distribution: NW Washington through C Oregon to N California (USA).

Conservation: U.S. ESA and Washington Department of Fish and Game – Candidate; IUCN – Extinct as T. m. tacomensis; Critically Endangered as T. m. louiei; Vulnerable as T. m. couchi, T. m. glacialis, T. m. pugetensis, T. m. tumuli, and T. m. yelmensis; Lower Risk (nt) as T. mazama and as T. m. helleri and T. m. melanops.

Discussion: Subgenus Thomomys . Revised by Johnson and Benson (1960); considered a subspecies of monticola by Bailey (1915) and Hall and Kelson (1959) but geographic sympatry with monticola in N California documented by Thaeler (1968 a). Subspecies listed in Hall (1981:465-467). Reviewed by Verts and Carraway (2000, Mammalian Species No. 641).