ISrOETH AMEKICAISr RECENT MAMMALS. 411 



*Microtus califomicus mariposae R. Kellogg. 



1918. Microtus califomicus mariposse R. Kellogg, Univ. 



Publ. ZooL, vol. 21, p. 19. December 28, 1918. 

 Type Locality. — ^A mile and three-quarters west of El Portal, 



Mariposa County, California. Altitude, 1,800 feet. 

 Range. — Western foothill region of Sierra Nevada, from Minkler, 



Fresno County, north to Dutch Flat, Placer County. Vertical 



range from 200 feet up to at least 3,800 feet; zonal range. 



Upper Sonoran and Transition. 



t*Microtus califomicus vallicola Bailey. 



1898. Microtus califomicus vallicola Bailey, Proc. Biol. Soe. 

 Washington, vol. 12, p. 89. April 30, 1898. 



Type Locality. — Lone Pine, Inyo County, California. 



Range. — ^Owens Valley region of California, east of Sierra 

 Nevada, from Olancha, Inyo County, north to Benton, Mono 

 County; east to head of Willow Creek in north end of Panamint 

 Mountains. Vertical range from 3,700 feet up at least to 

 5,400 feet; zonal range. Lower and Upper Sonoran. 



t*Microtus califomicus scirpensis (Bailey). 



1900. Microtus scirpensis Bailey, North Amer. Fauna, No. 



17, p. 38. June 6, 1900. 

 1918. Microtus califomicus scirpensis R. Kellogg, Univ. 



Calif. Publ. ZooL, vol. 21, p. 24. December 28, 1918. 

 Type Locality. — Spring near Shoshone, on the Amargosa River, 



eastern Inyo County, California. Altitude, 1,560 feet. 

 Range. — Known only from a small marsh at a spring near 



Shoshone on the Amargosa River, in eastern Inyo County. 



Altitude of station, 1,500 to 1,600 feet; zonal range Lower 



Sonoran. 



* Microtus califomicus kemensis R. Kellogg. 



191S. Microtus califomicus Icernensis R. Kellogg, Univ. Calif. 

 Publ. ZooL, vol. 21, p. 26. December 28, 1918. 



Type Locality. — Fay Creek, Kern County, California. Alti- 

 tude, 4,100 feet. 



Range. — Kern River basin, from Taylor Meadow, Tulare County 

 west to Bakersfield and Fort Tejon, Kern County. Vertical 

 range from 400 feet up to 7,000 feet; zonal range Lower 

 Sonoran to Transition 



Microtus califomicus mohavensis R. KeUogg. 



1918. Microtus califomicus mohavensis R. Kellogg, Univ. 



Calif. Publ. ZooL, vol. 21, p. 29. December 28, 1918. 

 Type Locality. — Victorville, San Bernardino County, California. 

 Altitude, 2,700 feet. 



