RODENTIA: GEOMYIDAE 277 



ville, Sonoma County; zonal range, Transition; vertical range, from sea level 

 up to 500 feet (Grinnell, Univ. California Publ. Zool., vol. 40, No. 2, p. 137, 

 Sept. 26, 1933) . 



Thomomys bottae silvif ugus Grinnell 



1935. Thomomys bottae silvifugus Grinnell, Univ. California Publ. Zool., vol. 

 40, No. 11, p. 406, Nov. 14, 1935. 



Type Locality. — Near Coyote Peak, 16 miles due east, air line, of ocean at 

 Patricks Point, Humboldt County, Calif. Altitude, 3,000 feet. Range.— Bald 

 Hills, which lie interiorly from redwood belt in northern Humboldt County, 

 Calif. Zonal range, Transition ; vertical range, 2,500 to 3,000 feet. 



Thomomys bottae laticeps Bairdf* 



1855. Thomomys laticeps Baird, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, 



1854-1855, p. 335, April 1855. 

 1893. Thomomys laticeps J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 5, p. 63, 



Apr. 28, 1893. 

 1915. Thomomys bottae laticeps V. Bailey, North Amer. Fauna No. 39, p. 46, 



Nov. 15, 1915. 

 Type Locality. — Humboldt Bay, Humboldt County, Calif. Range. — Coast 

 region of northwestern California from Rio Dell, Eel River, Humboldt County, 

 north to Chetco, extreme southwestern Curry County, Oreg. (V. Bailey, North 

 Amer. Fauna No. 55 (June) , p. 253, Aug. 29, 1936) . 



Thomomys bottae detumidus Grinnell* 



1935. Thomomys bottae detumidus Grinnell, Univ. California Publ. Zool., vol. 

 40, No. 11, p. 405, Nov. 14, 1935. 



Type Locality. — A mile and a half south of town of Pistol River, Curry County, 

 Oreg. Altitude, 250 feet. Range. — Known from type locality only. 



Thomomys bottae leucodon Merriamf* 



1897. Thomomys leucodon Merriam, Proc. Biol. Soc. Washington, vol. 11, 

 p. 215, July 15, 1897. 



1915. Thomomys bottae leucodon V. Bailey, North Amer. Fauna No. 39, p. 47, 

 Nov. 15, 1915. 



Type Locality. — Grant Pass, Rogue River Valley, Josephine County, Oreg. 

 Range. — In western Oregon from Cottage Grove, Lane County, upper Willamette 

 Valley, south through Umpqua and Rogue River Valleys and the Klamath River 

 Valley west of Lower Klamath Lake (V. Bailey, North Amer. Fauna No. 55 

 (June) , p. 252, Aug. 29, 1936) ; an extensive, though much broken, area in north- 

 ern California, chiefly west of Sierran divide and east of narrow humid coast 

 strip; south from Oregon line in Shasta Valley through inner Coast Ranges 

 to Salmon-Scott-Trinity Mountain Divide, and along lower western slopes of 

 Sierra Nevada to Placerville, El Dorado County; east, up Pit River Valley, as far 

 as Pit River Forest Service Station, Modoc County; zonal range, Upper Sonoran, 

 but locally also Transition (Grinnell, Univ. California Publ. Zool., vol. 40, No. 2, 

 p. 138, Sept. 26, 1933). 



Thomomys bottae saxatilis Grinnell 



1934. Thomomys bottae saxatilis Grinnell, Proc. Biol. Soc. Washington, vol. 

 47, p. 193, Oct. 2, 1934. 



213756—55 19 



