RODENTIA: HETEROMYIDAE 413 



Type Locality. — Eighteen miles southwest of Orr's Ranch, Tooele County, 

 Utah. Altitude, 4,400 feet. Range. — Known from type locality only. 



Microdipodops pallidus pallidus Merriamf * 



1901. Microdipodops pallidus Merriam, Proc. Biol. Soc. Washington, vol. 14, 

 p. 127, July 19, 1901. 



1926. Microdipodops megacephalus lucidus Goldmanf, Proc. Biol. Soc. Wash- 

 ington, vol. 39, p. 127, Dec. 27, 1926. (Sand dunes in Clayton Valley, 

 8 miles southeast of Blair, Esmeralda County, Nev.; altitude, about 4,500 

 feet.) 



1927. Microdipodops megacephalus dickeyi Goldman, Proc. Biol. Soc. Wash- 

 ington, vol. 40, p. 115, Sept. 26, 1927. (Three miles southeast of Oasis, 

 Mono County, Calif.; altitude, 5,150 feet.) 



Type Locality. — Mountain Well, Churchill County, Nev. (see Hall, Field Mus. 

 Nat. Hist. Publ. 511, Zool. Ser., vol. 27, p. 269, Dec. 8, 1941). Range.— Low 

 western part of Nevada from southern Pershing County southward through Fish 

 Lake Valley to Oasis, Mono County, Calif., and in Deep Spring Valley, Inyo 

 County, Calif. (Hall, loc. cit.). 



Microdipodops pallidus ammophilus Hall 



1941. Microdipodops pallidus ammophilus Hall, Field Mus. Nat. Hist. Publ. 

 511, Zool. Ser., vol. 27, p. 273, Dec. 8, 1941. 



Type Locality. — Railroad Valley, Able Spring, 12^ miles south of Lock's 

 Ranch, Nye County, Nev. Altitude, 5,000 feet. Range. — Railroad Valley, 

 eastern Nye County. 



Microdipodops pallidus purus Hall 



1941. Microdipodops pallidus purus Hall, Field Mus. Nat. Hist. Publ. 511, 

 Zool. Ser., vol. 27, p. 273, Dec. 8, 1941. 



Type Locality. — Fourteen and one-half miles south of Groom Baldy, Lincoln 

 County, Nev. Range.— Emigrant and Desert Valleys in eastern Lincoln County. 



Microdipodops pallidus ruficollaris Hall 



1941. Microdipodos (sic) pallidus ruficollaris Hall, Proc. Biol. Soc. Wash- 

 ington, vol. 54, p. 60, May 20, 1941; Field Mus. Nat. Hist. Publ. 511, Zool. 

 Ser., vol. 27, p. 272, Dec. 8, 1941. 

 Type Locality. — Five miles southeast of Kawich Post Office, Kawich Valley, 

 Nye County, Nev. Altitude, 5,400 feet. Range. — Fine sands of valleys from 

 western Nye County eastward to western Lincoln County, Nev. 



Subfamily heteromyinae 



Genus HETEROMYS 4 Desmarest (spiny pocket mice) 



1817. Heteromys Desmarest, in Nouveau dictionnaire d'histoire naturelle . . .. 

 vol. 14, p. 181. (Type, Mus anomalus Thompson.) 



Subgenus HETEROMYS Desmarest 



desmarestianus — group 

 Heteromys desmarestianus desmarestianus Gray* 



1868. Heteromys desmarestianus Gray, Proc. Zool. Soc. London, 1868, pt. 1, 

 p. 204, May 1868. 



4 Revised by Goldman, North Amer. Fauna No. 34, pp. 14-32, Sept. 7, 1911. 



