RODENTIA: HETEROMYIDAE 355 



Type Locality.— Kennedy, Cherry County, Nebr. Range.— Upper Austral 

 plains west of Missouri River in South Dakota, Nebraska (Swenk, Missouri Val- 

 ley Fauna, No. 3, pp. 1-4, June 5, 1940), western Kansas (Hibbard, Trans. 

 Kansas Acad. Sci., vol. 47, No. 1, p. 75, September 1944) , and plains region east 

 of mountains in Colorado (Warren, The mammals of Colorado, . . . , p. 176, 

 1942). 

 Perognathus flavescens perniger Osgoodf * 



1904. Perognathus flavescens perniger Osgood, Proc. Biol. Soc. Washington, 

 vol. 17, p. 127, June 9, 1904. 



Type Locality. — Vermillion, Clay County, S. Dak. Range. — East of Missouri 

 River in North Dakota (except at Breien), South Dakota, Minnesota, and Iowa; 

 north to Finley, Steele County, N. Dak., and Elk River, Sherburne County, Minn.; 

 east to Delaware County, Iowa, and south to Randolph, Fremont County, Iowa 

 (Fichter, Journ. Mamm., vol. 20, No. 3, p. 377, Aug. 14, 1939) . 



Perognathus flavescens olivaceogriseus Swenk 



1940. Perognathus flavescens olivaceogriseus Swenk, Missouri Valley Fauna, 

 Lincoln, No. 3, p. 6, June 5, 1940. 



Type Locality. — Chadron, Dawes County, Nebr. Range. — Presumably a nar- 

 row belt lying between conifer-bearing Pine Ridge and largely treeless, much 

 eroded buttes and ravines of northern escarpment of Dawes Table, on the south, 

 and almost solid areas of Pierre clays, clay loams, and loams, north of Antelope 

 and Squaw Creeks in northern Sioux County, terraces of Little Cottonwood Creek 

 and White River, in central Dawes County, and on north, extreme northwestern 

 corner of Sheridan County, Nebr. 



Perognathus flavescens copei Rhoads* 



1894. Perognathus copei Rhoads, Proc. Acad. Nat. Sci. Philadelphia, vol. 46, 

 1893, p. 404, Jan. 27, 1894. 



1905. Perognathus flavescens copei V. Bailey, North Amer. Fauna No. 25, 

 p. 143, Oct. 24, 1905. 



Type Locality. — Near Mobeetie, Wheeler County, Tex. Range. — Panhandle 

 and western part of main section of Oklahoma (Blair, Amer. Midi. Nat., vol. 22, 

 No. 1, p. 114, July 1939) south at least to sandhills 20 miles north of Monahans, 

 Ward County, Tex. (V. Bailey, loc. cit.) ; and north through south-central Kansas 

 to Ellsworth County (Cockrum, Univ. Kansas Publ. Mus. Nat. Hist., vol. 7, No. 1, 

 p. 146, Aug. 25, 1952) . 



Perognathus merriami merriami J. A. Allen* 



1892. Perognathus merriami J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 4, 



p. 45, Mar. 25, 1892. 

 1896. Perognathus mearnsi J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 8, 

 p. 237, Nov. 21, 1896. (Watson's Ranch, 15 miles southwest of San An- 

 tonio, Bexar County, Tex.) 

 Type Locality. — Brownsville, Cameron County, Tex. Range. — Subtropical 

 region of southern Texas and northeastern Mexico, and Lower Sonoran of central 

 Texas; south to Linares in Nuevo Leon and Altamira in Tamaulipas; north at 

 least to San Antonio, Bexar County, Tex.; and from Padre Island and Browns- 

 ville along Rio Grande at least as far as Comstock, Val Verde County, Tex. 



