392 U. S. NATIONAL MUSEUM BULLETIN 205 



May 13, 1941; and as a valid subspecies by Blair, Journ. Mamm., vol. 30, 

 No. 4, p. 388, Nov. 17, 1949.) 

 1901. [Dipodomys merriami] ambiguus Elliot, Field Columb. Mus. Publ. 45, 



Zool. Ser., vol. 2, p. 234, Mar. 6, 1901. 

 Type Locality. — El Paso, El Paso County, Tex. Range. — Very local distribu- 

 tion along sandy bottom of Rio Grande Valley from El Paso and Juarez south 

 to Boquillas, Brewster County, in Great Bend country, Texas (V. Bailey, North 

 Amer. Fauna No. 25, p. 150, Oct. 24, 1905). 



Dipodomys merriami simiolus Rhoads* 



1894. Dipodomys simiolus Rhoads, Proc. Acad. Nat. Sci. Philadelphia, vol. 45, 

 1893, p. 410, Jan. 27, 1894. 



1894. Dipodomys similis Rhoads, Proc. Acad. Nat. Sci. Philadelphia, vol. 45, 

 1893, p. 411, Jan. 27, 1894. (Whitewater, Riverside County, Calif.) 



1897. Dipodomys merriami simiolus Mearns, Proc. U. S. Nat. Mus., vol. 19, 

 p. 720, July 30, 1897. 



Type Locality. — Agua Caliente (now Palm Springs), Riverside County, Calif. 

 Range. — A narrow fringe along international boundary in Colorado Desert dis- 

 trict of Baja California from Jacumba Valley eastward to Colorado River (Huey, 

 Trans. San Diego Soc. Nat. Hist., vol. 11, No. 10, p. 220, Apr. 30, 1951) ; and 

 Colorado Desert region of southeastern California; recorded north from Mexi- 

 can border to Cabezon, in San Gorgonio Pass, Riverside County; west as far as 

 La Puerta and Vallecito, in eastern San Diego County; east to Colorado River 

 north as far as vicinity of Palo Verde; vertical range, 180 to 3,500 feet; zonal 

 range, Lower Sonoran (Grinnell, Univ. California Publ. Zool., vol. 40, No. 2, 

 p. 161, Sept. 26, 1933). Recorded also from sandy areas of northwestern 

 Sonora, Mexico, from El Doctor, Sierra Pinacate (40 miles west of Sonoyta) , 

 and 2 miles east of Pitiquito (Burt, Univ. Michigan Mus. Zool. Misc. Publ. 39, 

 p. 47, Feb. 15, 1938) . 



Dipodomys merriami parvus Rhoads* 



1894. Dipodomys parvus Rhoads, Amer. Nat., vol. 28, p. 70, January 1894. 



1901. [Dipodomys merriami] parvus Elliot, Field Columb. Mus. Publ. 45, 

 Zool. Ser., vol. 2, p. 234, Mar. 6, 1901. 



Type Locality. — Reche Canyon, 4 miles southeast of Colton, San Bernardino 

 County, Calif. (See Grinnell, Univ. California Publ. Zool., vol. 24, No. 1, p. 82, 

 June 17, 1922.) Range. — San Bernardino and San Jacinto Valleys, in San 

 Bernardino and Riverside Counties; northernmost recorded station, Cajon Wash; 

 southernmost, Vallevista; verlical range, 1,000 to 1,800 feet; zonal range, Lower 

 Sonoran (Grinnell, Univ. California Publ. Zool., vol. 40, No. 2, p. 161, Sept. 26, 

 1933) ; south at least to Santo Domingo, lat. 30°45' N., long. 115°58' W., north- 

 western Baja California, Mexico (Huey, Trans. San Diego Soc. Nat. Hist., vol. 5, 

 No. 5, p. 66, July 6, 1927). 



Dipodomys merriami trinidadensis Huey 



1941. Dipodomys merriami trinidadensis Huey, Trans. San Diego Soc. Nat. 

 Hist., vol. 11, No. 10, p. 220, Apr. 30, 1951. 



Type Locality. — Aguajito Spring, El Valle de la Trinidad, Baja California, 

 Mexico. Range. — El Valle de la Trinidad and more arid parts of El Valle de 

 la San Rafael, at least to Sangre de Cristo along western base of Sierra Juarez. 



