Vor. IIT] GRINNELL—MAMMALS OF CALIFORNIA 369 
side, on the western arm of the Mohave desert in northern 
Los Angeles County or southern Kern County, and on the 
Colorado desert near the Mexican line, in eastern San Diego 
County or western Imperial County. 
Family BOVIDAE 
Ovis canadensis nelsoni Merriam 
Desert Bighorn 
Original description—Ovis nelsoni Merriam, Proc. Biol. 
Soc Washer ilyalos 1897 “np 272 218) 
Type locality—Grapevine Mountains, on boundary between 
California and Nevada, just south of latitude 37°. 
Synonyms—Ovis canadensis, part; Ovis cervina nelsoni; 
Mountain Sheep, part; Desert Sheep. 
Range—Lower and Upper Sonoran zones on the Mohave 
and Colorado deserts and adjacent and included ranges, west 
to the Santa Rosa Mountains, Riverside County, northwest 
(formerly) through the Tejon region to the Caliente Hills, 
San Luis Obispo County, and north through the Inyo region 
east of Owens Valley. 
Ovis canadensis sierrae Grinnell 
Sierra Nevada Bighorn 
Original description—Ovis cervina sierrae Grinnell, Univ. 
Calif. Publ. Zool., 10, May 9, 1912, pp. 144-150. 
Type locality—East slope Mount Baxter, 11,000 feet alti- 
tude, Sierra Nevada, Inyo County, California. 
Synonyms—Ovtis canadensis, part; Mountain Sheep, part. 
Range—High Sierra Nevada, formerly at least from Mari- 
posa County to Tulare County; also (probably this race) in 
the vicinity of Mount Shasta east to the Warner Mountains, 
Modoc County. Now only from Mono County south to the 
vicinity of Mount Whitney; restricted to Boreal zone in 
summer, descending in winter to east base of the Sierra 
Nevada. There are sheep still existing on the San Gabriel 
Mountains (Transition zone), southern California; status 
unknown. 
