1897. Lepus baileyi Merriam, Proc. Biol. Soc. Washington, 11:148, June 9, type from Spring Creek, east side of Bighorn Basin, Bighorn County, Wyoming.

1908. Sylvilagus auduboni baileyi, Lantz, Trans. Kansas Acad. Sci., 22:336.

Marginal records.—Montana: Great Falls of the Missouri (Nelson, 1909:234). North Dakota: Wade on the Cannonball River (V. Bailey, 1927:138). South Dakota: Corral Draw (Nelson, 1909:234). Nebraska: Glen (ibid.). Kansas: 2-1/2 mi. S and 4 mi. W Oberlin (19035 KU); Wakeeney (1203 KU). Colorado (Nelson, 1909:234): Monon; The Cedars; Quenda [=Querida]; Salida. Wyoming: 1/2 mi. W Horse Creek P. O. (15948 KU). Colorado (Nelson, 1909:234): White Rock [2 mi. above Meeker, 6400 ft.]; 20 mi. SW Rangely. Utah (Durrant, MS): 8 mi. S Myton; 6 mi. NW Duchesne; 10 mi. E Mountain Home. Wyoming (Nelson, 1909:234): Ft. Bridger; Big Piney; Circle. Montana: Stillwater (ibid.). Phillips Creek, Montana (Nelson 1909:234) not found.

Sylvilagus audubonii cedrophilus Nelson.

1907. Sylvilagus auduboni cedrophilus Nelson, Proc. Biol. Soc. Washington, 20:83, July 22, type from Cactus Flat, 20 mi. N Cliff, Grant County, New Mexico.

Marginal records (Nelson, 1909:230).—Arizona: San Francisco Mts. New Mexico: Gallup; Santa Rosa; Capitan; Ancho; Isleta; Burro Mts. Arizona: Springerville.

Sylvilagus audubonii confinis (J. A. Allen).

1898. Lepus arizonae confinis J. A. Allen, Bull. Amer. Mus. Nat. Hist., 10: 146, April 12, type from Playa Maria, Baja California.

1909. Sylvilagus auduboni confinis, Nelson, N. Amer. Fauna, 29:220, August 31.