RODENTIA: GEOMYIDAE 311 



(LaBroquerie and Marchand) in southern Manitoba, north to Selkirk Settle- 

 ment, Avveme, Carberry, Oak Lake, Pembina River, Spruce Woods Forest Re- 

 serve, to Lake Dauphin; and Glen Ewen and Red Fox Lake northeast of Kendal 

 in southeastern Saskatchewan (Anderson, Nat. Mus. Canada Bull. 102 (1946), 

 p. 129, Jan. 24, 1947). 



Thomomys talpoides pierreicolus Swenk 



1941. Thomomys talpoides pierreicolus Swenk, Missouri Valley Fauna, Lin- 

 coln, No. 4, p. 2, Mar. 1, 1941. 



Type Locality. — Wayside, Dawes County, Nebr. Range.— Areas of soils of 

 Pierre series, including Pierre clay and loam (Indian Creek, north of Story, 

 Sioux County), Pierre silty clay loam and silt loam (Sand Creek Valley, north- 

 east of Horn and 5 miles northwest of Chadron, Dawes County) and Pierre 

 clay loam (Wayside, Dawes County), in extreme northwestern Nebraska. Prob- 

 ably the form recorded from southwestern and western South Dakota (Corral 

 Draw, Pine Ridge Indian Reservation; Buffalo Gap and Elk Mountain, Custer 

 County; Rapid City, Pennington County; Fort Meade and Smithville, Meade 

 County; and Crow Bultes, Harding County), from the northern half of east- 

 ern edge of Wyoming (Newcastle, Weston County, and Moorcroft, Crook 

 County) and from extreme southeastern Montana (Alzada, Carter County). 



Thomomys talpoides cheyennensis Swenk 



1941. Thomomys talpoides cheyennensis Swenk, Missouri Valley Fauna, Lin- 

 coln, No. 4, p. 5, Mar. 1, 1941. 



Type Locality. — Two miles south of Dalton, Cheyenne County, Nebr. 

 Range. — Areas of soils of Rosebud series, including Rosebud loam, silt loam, 

 gravelly sandy loam and, less extensively, the fine and very fine sandy loams 

 of the short-grass-covered Upper-Sonoran-Zone high plains of Kimball, south- 

 ern Banner and western Cheyenne Counties, in extreme southwestern corner of 

 Nebraska Panhandle. Presumably recorded also under name clusius as occur- 

 ring in soils of Rosebud series in Upper Sonoran Zone of extreme northeastern 

 Colorado, at Avalo and at Chimney Cliffs 30 miles northwest of Sterling (5,100 

 feet) in northwestern Logan County, and at Pawnee Buttes. 



Thomomys talpoides bullatus V. Bailey f * 



1914. Thomomys talpoides bullatus V. Bailey, Proc. Biol. Soc. Washington, 

 vol. 27, p. 115, July 10, 1914. 



Type Locality. — Powderville, Powder River County, southeastern Montana. 

 Range. — Plains of eastern Montana and northwestern South Dakota; north to 

 Cypress Hills, south of Maple Creek, southwestern Saskatchewan, apparently 

 intergrading with andersoni in this area (Anderson, Nat. Mus. Canada Bull. 102 

 (1946) , p. 128, Jan. 24, 1947) . Also recorded from Pass [Parkman] and Day- 

 ton, Sheridan County, northern Wyoming (Hall and Kelson, Univ. Kansas Publ. 

 Mus. Nat. Hist., vol. 5, No. 26, p. 363, Dec. 15, 1952) . 



Thomomys talpoides pryori V. Baileyf * 



1914. Thomomys pryori V. Bailey, Proc. Biol. Soc. Washington, vol. 27, 

 p. 116, July 10, 1914. 



1915. Thomomys talpoides pryori V. Bailey, North Amer. Fauna No. 39, p. 104, 

 Nov. 15, 1915. 



