RODENTIA: CRICETIDAE 595 



corded from vicinities of Victorville and Oro Grande, in San Bernardino County. 

 Vertical range, 2,500 feet up to 2,700 feet; zonal range, Lower Sonoran. 



Microtus calif ornicus stephensi von Bloeker 



1932. Microtus calif ornicus stephensi von Bloeker, Proc. Biol. Soc. Washing- 

 ton, vol. 45, p. 134, Sept. 9, 1932. 



Type Locality. — Playa del Rey, Los Angeles County, Calif. Range. — Coastal 

 marshes in Orange, Los Angeles, and Ventura Counties, Calif.; from Sunset 

 Beach, Orange County, to Point Mugu, Ventura County. 



Microtus californicus sanctidiegi R. Kellogg* 



1918. Microtus californicus neglectus R. Kellogg, Univ. California Publ. Zool., 

 vol. 21. No. 1, p. 31, Dec. 28, 1918. (Not of Jenyns, 1841.) 



1922. Microtus californicus sanctidiegi R. Kellogg, Proc. Biol. Soc. Washing- 

 ton, vol. 35, p. 78, Mar. 20, 1922. (Substitute for neglectus R. Kellogg.) 



Type Locality. — Escondido, San Diego County, Calif. Altitude, 640 feet. 

 Range. — San Diegan subfaunal district from Mountain Spring and mouth of Tia 

 Juana River, San Diego County, northwest to Gaviota Pass, Santa Barbara County, 

 and north to Bluff Lake, San Bernardino Mountains, San Bernardino County, 

 Calif. Vertical range, from near sea level (San Diego) up at least to 9,000 feet 

 (Round Valley, San Jacinto Mountains) ; zonal range, Lower Sonoran to 

 Canadian. 



Microtus californicus hyperythrus Elliot* 



1903. Microtus californicus huperuthrus Elliot, Field Columb. Mus. Publ. 74, 



Zool Ser., vol. 3, No. 10 (April ) , p. 161, May 7, 1903. 

 1903. Microtus californicus hyperythrus Elliot, Field Columb. Mus. Publ. 79, 

 Zool. Ser., vol. 3, No. 12 (June), p. 218, Aug. 15, 1903. (A change of 

 transliteration permitted by International Code of Zoological Nomenclature; 

 see Proc. Biol. Soc. Washington, vol. 39, p. 89, July 7, 1926.) 

 1926. Microtus californicus perplexabilis Grinnell, Journ. Mamm., vol. 7, 



No. 3, p. 223, Aug. 9, 1926. (La Grulla, Baja California, Mexico.) 

 Type Locality. — La Grulla, Sierra San Pedro Martir, Baja California, Mexico. 

 (In the original account the type locality was said to be San Quintin, Baja Cali- 

 fornia, but this designation was later declared to have been an "inexplicable 

 inadvertence." See Elliot, Field Columb. Mus. Publ. 115, Zool. Ser., vol. 8, 

 p. 292, Mar. 4, 1904.) Range. — Sierra San Pedro Martir at altitudes varying 

 from 6,000 to 8,500 feet. 



Microtus californicus aequivocatus Osgood* 



1928. Microtus californicus aequivocatus Osgood, Journ. Mamm., vol. 9, No. 1, 

 p. 56, Feb. 9, 1928. 



Type Locality. — San Quintin, on coast, west of Sierra San Pedro Martir, Baja 

 California, Mexico. (See Grinnell, Journ. Mamm., vol. 7, No. 3, pp. 221-222, 

 Aug. 9, 1926.) Range. — Coast region, at altitudes below 3,000 feet, near San 

 Quintin. 



Microtus californicus grinnelli Huey 



1931. Microtus californicus grinnelli Huey, Trans. San Diego Soc. Nat. Hist., 

 vol. 7, No. 6, p. 47, Dec. 19, 1931. 



