Vor. III] GRINNELL—MAMMALS OF CALIFORNIA 319 
Type locality—Cape Mendocino, near Capetown, Humboldt 
County, California. 
Synonym—Coast Vole, part. 
Range—Transition zone in northwest humid coast belt, at 
least from Capetown to Eureka and interiorly to Cuddeback 
and Fair Oaks; all these localities in Humboldt County (Mus. 
Wert. Zool). 
Microtus edax (Le Conte) 
Tule Meadow Mouse 
Original description—Arvicola edax Le Conte, Proc. Acad. 
Nat. Sci. Phila., 6, October, 1853, p. 405. 
Type locality—California, somewhere south of San Fran- 
cisco (ide) Bands) Pac Ra Re Repi8, 1857;/p. 532). 
Synonym—Tule Vole. 
Range—Lower and Upper Sonoran zones in suitable parts 
of San Joaquin and Sacramento valleys, north to near Marys- 
ville Buttes, south to Tulare Lake, and west to Cordelia Slough, 
Solano County (Bailey, N. Amer. Fauna, 17, 1900, p. 38; 
Mus. Vert. Zool.). 
Microtus scirpensis Bailey 
Amargosa Meadow Mouse 
Original description—Microtus scirpensis Bailey, N. Amer. 
Pagal june: LOCOS pi iSS! 
Type locality—Amargosa River (near Nevada line), Inyo 
County, California. 
Synonym—Desert Vole. 
Range—Known only from a small tule marsh, Lower So- 
noran zone, at the type locality, as above. 
Microtus mordax mordax (Merriam) 
Cantankerous Meadow Mouse 
Original description—Arvicola mordax Merriam, N. Amer. 
Fauna, 5, July, 1891, pp. 61, 62. 
Type locality—Sawtooth (or Alturas) Lake, east foot of 
Sawtooth Mountains, Idaho. 
Synonym—Cantankerous Vole. 
Range—Transition and Boreal zones along the whole Sierra 
Nevada, south to Taylor Meadow, Tulare County (close to 
Kern County line) ; also on White Mountains, Inyo County; 
