368 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 4TH Ser. 
Odocoileus hemionus californicus (Caton) 
California Mule Deer 
Original description—Cervus macrotis var. californicus 
Caton, Amer. Nat., 10, August, 1876, p. 464. 
Type locality—Near Gaviota Pass, 40 miles westward from 
Santa Barbara, in Santa Barbara County, California. 
Range—Upper Sonoran and Transition zones of southern 
California west of the desert proper, from the Mexican line 
northwest through the San Diegan district at least to San Luis 
Obispo County, and east through the Tejon region to the 
Tehachapi Mountains. 
Odocoileus hemionus eremicus (Mearns) 
Burro Deer 
Original description—Dorcelaphus hemionus  eremicus 
Mearns, Proc. U. S. Nat. Mus., 20, February 11, 1897, pp. 
470, 471. 
Type locality—Sierra Seri, Sonora, Mexico, near Gulf of 
California. 
Synonym—Desert Mule Deer. 
Range—Lower Sonoran zone on the Colorado desert, for- 
merly north along the Colorado River at least to the vicinity 
of Palo Verde, and northwest around Salton Sea; now rare or 
entirely wanting north of the Mexican line. 
bh Family ANTILOCAPRIDAE 
Antilocapra americana americana (Ord) 
Prong-horn Antelope 
Original description—“‘Antelope americana Ord, Guthrie’s 
Geo., 2nd Amer. ed., 2, 1815, pp. 292, 308.” 
Type locality—On the plains and highlands of the Missouri 
(fide Miller and Rehn, Proc. Boston Soc. Nat. Hist., 30, 1901, 
jo. 10))). 
Range—Formerly nearly throughout the state south and 
east of the humid coast-belt and below the Boreal zone; chiefly, 
however, on the interior plains and valleys both east and west 
of the desert divides. Now only isolated bands exist: in the 
Modoc region, in the southern San Joaquin Valley on the west 
