NORTH AMERICAN RECENT MAMMALS. 297 



t*Dipodomys microps preblei (Goldman). 



1921. Perodipus microps preblei Goldman, Journ. Mamm., vol. 



2, p. 233. November 29, 1921. 

 Type Locality. — Narrows, Malheur Lake, Harney County, 



Oregon. 



t*Dipodomys levipes (Merriam). 



1904. Perodipus microps levipes Merriam, Proc. Biol. Soc. 



Washington, vol. 17, p. 145. July 14, 1904. 

 1921. Dipodomys levipes Grinnell, Journ. Mamm., vol. 2, 



p. 96. May 2, 1921. 

 Type Locality. — Perognathus Flat, Emigrant Gap, Panamint 



Mountains, Inyo County, California. Altitude, 5,200 feet. 



desertir-grouj). 



t"*Dipodomy3, deserti deserti Stephens. 



1887. Dipodomys deserti Stephens, Amer. Nat., vol. 21, p. 42. 



January, 1887. 

 1903. Dipodomys deserti helleri Elliot, Field Columb. Mus., 



publ. 87, zool. ser., vol. 3, p. 249. December, 1903. (Keeler, 



Owens Lake, Inyo County, California.) 

 Type Locality. — ^Mohave River, San Bernardino County, 



California. 



t*Dipodomys deserti sonoriensis Goldman. 



1923. Dipodomys deserti sonoriensis Goldman, Proc. Biol. Soc. 



Washington, vol. 36, p. 139. May 1, 1923. 

 Type Locality. — La Libertad Ranch, 30 miles east of Sierra 



Seri, Sonora, Mexico. 



Genus MICRODIPODOPS Merriam. 

 (Pigmy Kangaroo-rats.) 



1891. Microdipodops Merriam, North Amer. Fauna, No. 5, p. 

 115. July 30, 1891. Type, Microdipodops megacepTialus 

 Merriam. 



t*Microdipodops califomicus Merriam. 



1901. Microdipodops califomicus Merriam, Proc. Biol. Soc. 



Washington, vol. 14, p. 128. July 19, 1901. 

 Type Locality. — Sierra Valley; near Vinton, Plumas County, 



California. 



t*Microdipodops megacephalus megacephalus Merriam. 



1891. Microdipodops megacepTialus Merriam, North Amer. 



Fauna, No. 5, p. 116. July 30, 1891. 

 Type Locality. — Halleck, East Humboldt Valley, Elko County, 



Nevada. 



