RODENTIA: GEOMYIDAE 299 



Type Locality. — Smith's Valley, West Walker River, Lyon County, Nev. Alti- 

 tude, 4,700 feet. Range. — Valleys of West Walker and East Walker Rivers and 

 downstream along Walker River as far as Walker Lake (Hall, Mammals of Ne- 

 vada, p. 462, July 1, 1946). 



Thomomys bottae lucrificus Hall and Durham 



1938. Thomomys bottae lucrificus Hall and Durham, Proc. Biol. Soc. Wash- 

 ington, vol. 51, p. 15, Feb. 18, 1938. 



Type Locality. — Eastgate, Churchill County, Nev. Altitude, 4,425 feet. 

 Range. — Known only from Eastgate and at an elevation 600 feet higher along 

 creek which flows westward from Desatoya Mountains to Eastgate (Hall, Mam- 

 mals of Nevada, p. 461, July 1, 1946). 



Thomomys bottae depressus Hall* 



1932. Thomomys bottae depressus Hall, Univ. California Publ. Zool., vol. 

 38, No. 4, p. 326, Feb. 27, 1932. 



Type Locality. — Dixie Meadows (at south end of Humboldt Salt Marsh), 

 Churchill County, Nev. Altitude, 3,500 feet. Range. — Area around Carson Sink 

 and Humboldt Salt Marsh (Hall, Mammals of Nevada, p. 460, July 1, 1946) . 



Thomomys bottae can us V. Baileyf * 



1910. Thomomys canus V. Bailey, Proc. Biol. Soc. Washington, vol. 23, p. 79, 

 May 4, 1910. 



1932. T[homomys] b[ottae] canus Hall, Univ. California Publ. Zool., vol. 38, 

 No. 4, p. 327, Feb. 27, 1932. 



Type Locality. — Deep Hole, at north end of Smoke Creek Desert, Washoe 

 County, Nev. Range. — Margins of Black Rock Desert from Deep Hole, Washoe 

 County, southward to Carson River Valley, Lyon County ; and from near Dayton, 

 Lyon County, eastward to Fallon, Churchill County (Hall, Mammals of Nevada, 

 p. 459, July 1, 1946) . 



Thomomys bottae centralis Hall* 



1930. Thomomys perpallidus centralis Hall, Univ. California Publ. Zool., 

 vol. 32, No. 6, p. 445, July 8, 1930. 



1932. Thomomys bottae centralis Hall, Univ. California Publ. Zool., vol. 38, 

 No. 4, p. 333, Feb. 27, 1932. 



Type Locality. — Two and one half miles east of Baker (l 1 /^ miles west of 

 Nevada-Utah boundary on lat. 39° N.), White Pine County, Nev. Altitude, 

 5,700 feet. Range. — Extreme western Utah, in Millard, Beaver, and Iron 

 Counties (Durrant, Univ. Kansas Publ. Mus. Nat. Hist., vol. 1, No. 1, p. 44, 

 Aug. 15, 1946) ; in Nevada, from Mount Moriah, White Pine County, south- 

 ward over eastern Nevada, the Virgin River Valley excepted, across southern 

 Nevada and northward to head of Amargosa River, southwestern Nye County 

 (Hall, Mammals of Nevada, p. 471, July 1, 1946) ; and into extreme eastern 

 San Bernardino County, Calif., along Colorado River near boundary between 

 California and Nevada (Chattin, Trans. San Diego Soc. Nat. Hist., vol. 9, No. 27, 

 p. 271, Apr. 30, 1941). 



Thomomys bottae latus Hall and Davis 



1935. Thomomys bottae latus Hall and Davis, Univ. California Publ. Zool., 

 vol. 40, No. 10, p. 393, Mar. 13, 1935. 



