RODENTIA: GEOMYIDAE 325 



Type Locality. — Mount Tallac, El Dorado County, Calif. Altitude, 7,500 

 feet. Range. — Higher parts of northern Sierra Nevada, from Huntington Lake, 

 Fresno County, north to Butte Creek, northeast of Mount Shasta, Siskiyou County, 

 Calif.; vertical range, from 3,600 feet (near Sisson, Siskiyou County) up to at 

 least 10,350 feet (Vogelsang Lake, Yosemite National Park) ; zonal range, Cana- 

 dian and Hudsonian, Transition locally (Grinnell, Univ. California Publ. Zool., 

 vol. 40, No. 2, p. 146, Sept. 26, 1933) ; Sierra Nevada in southwestern Washoe, 

 western Ormsby, and western Douglas Counties, Nev. (Hall, Mammals of 

 Nevada, p. 451, July 1, 1946) . 



Thomomys monticola mazama Merriamf* 



1897. Thomomys mazama Merriam, Proc. Biol. Soc. Washington, vol. 11, p. 

 214, July 15, 1897. 



1915. Thomomys monticola mazama V. Bailey, North Amer. Fauna No. 39, 

 p. 123, Nov. 15, 1915. 



Type Locality. — Anna Creek, near Crater Lake, Mount Mazama, Klamath 

 County, Oreg. Altitude, 6,000 feet. Range. — Cascade Mountains of Oregon 

 from Columbia River south (V. Bailey, North Amer. Fauna No. 55 (June), 

 p. 256, Aug. 29, 1936) ; and higher parts of Siskiyou, Scott, Salmon, and Trinity 

 Mountains, from Oregon line, Siskiyou County, south to head of Grizzly Creek, 

 Trinity County; zonal range, Canadian and Hudsonian, Transition locally; verti- 

 cal range, from 4,500 to 7,000 feet (Grinnell, Univ. California Publ. Zool., vol. 

 40, No. 2, p. 146, Sept. 26, 1933) . 



Thomomys monticola helleri Elliot* 



1903. Thomomys helleri Elliot, Field Columb. Mus. Publ. 74, Zool. Ser., vol. 



3, No. 10 (April), p. 165, May 7, 1903. 

 1915. Thomomys monticola helleri V. Bailey, North Amer. Fauna No. 39, p. 



126, Nov. 15, 1915. 

 Type Locality. — Gold Beach, mouth of Rogue River, Curry County, Oreg. 

 Range. — Coastal region of southwestern Oregon; recorded from mouth of Rogue 

 River at Gold Beach and Wedderburn (V. Bailey, North Amer. Fauna No. 55 

 (June) , p. 258, Aug. 29, 1936) . 



Thomomys monticola niger Merriamf* 



1901. Thomomys niger Merriam, Proc. Biol. Soc. Washington, vol. 14, p. 117, 

 July 19, 1901. 



1943. Thomomys monticola niger Goldman, Journ. Washington Acad. Sci., 

 vol. 33, No. 5, p. 146, May 15, 1943. 



Type Locality. — Seaton [ = Mapleton], near mouth of Umpqua River [ = head 

 of tide water on Siuslaw River], Lane County, Oreg. Range. — Known only from 

 near mouth of Umpqua River, at Scottsburg, and in Siuslaw River Valley at 

 Mapleton, Deadwood, and Mercer (V. Bailey, North Amer. Fauna No. 55 (June), 

 p. 256, Aug. 29, 1936). 



Thomomys monticola nasicus Merriamf* 



1897. Thomomys nasicus Merriam, Proc. Biol. Soc. Washington, vol. 11, p. 216, 



July 15, 1897. 

 1915. Thomomys monticola nasicus V. Bailey, North Amer. Fauna No. 39, 



p. 125, Nov. 15, 1915. 



213756—55 22 



