318 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 4TH Ser. 
Synonym—Dutcher Vole. 
Range—Boreal zone of the extreme southern Sierra Nevada, 
in vicinity of Mount Whitney; south to Jackass Meadow, 
Tulare County, north to head of San Joaquin River, Fresno 
County, ((Bailey,Ne Amer shauna, 7,900) p35): Use View 
Zao 
Microtus californicus californicus (Peale) 
California Meadow Mouse 
Original description—Arvicola californica Peale, U. S. Ex-— 
ploring Exped., 8, 1848, p. 46, “pl. 11, fig. 2.” 
Type locality—San Francisco Bay, California. 
Synonyms—Arvicola trowbridgu Baird, Pac. R. R. Rep., 8, 
1857, p. 529 (type from Monterey, California) ; Arvicola mon- 
tana, part; California Vole; Microtus edax, part. 
Range—Both Sonoran and Transition zones throughout the 
state west of the Sierra Nevada and desert divides, including 
the San Diegan district, from the Mexican line north to the 
Oregon line, and east at the north to Shasta Valley, centrally 
to Onyx, Kern County; except bed of San Joaquin-Sacramento 
Valley, and narrow coast strip in vicinity of Cape Mendocino 
(Bailey, N. Amer. Fauna, 17, 1900, p. 35; Mus. Vert. Zool.): 
Microtus californicus vallicola Bailey 
Owens Valley Meadow Mouse 
Original description—Microtus californicus vallicola Bailey, 
Proc. Biol. Soc. Wash., 12, April 30, 1898, p. 89. 
Type locality—Lone Pine, Inyo County, California. 
Synonym—Valley Vole. 
Range—Suitable parts of Upper and Lower Sonoran zones 
on the Mohave desert and in the Inyo region; south to Victor- 
ville, San Bernardino County, east to Panamint Mountains, 
and north through Owens Valley to Alvord (Bailey, N. Amer. 
Bauna, 17) 1900, p.. son Wiss Viert Zool.) 
Microtus californicus constrictus Bailey 
Mendocino Meadow Mouse 
Original description — Microtus californicus constrictus 
Bailey, N. Amer. Fauna, 17, June, 1900, pp. 36, 37. 
