456 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



Subgenus MACROTOLAGUS Mearns. (Black-tailed Jackrabbits.) 



1895. Macrotolagus Mearns, Science, n. s., vol. 1, p. 698. 

 June 21, 1895. Type, Lepus alleni Mearns. (See Mearns, 

 Proc. U. S. Nat. Mus., vol. 18, p. 552, June 24, 1896.) 



*Lepus alleni alleni Mearns. 



1890. Lepus alleni Mearns, Bull. Amer. Mus. Nat. Hist., vol. 2, 

 p. 294. February 21, 1890. 



Type Locality. — Rillito, on the Southern Pacific Railroad, 

 Pima County, Arizona. 



Range. — The desert plains of southern Arizona from Phoenix, 

 Tucson, and Benson, south through similar country to a little 

 beyond Guaymas, in northern Sonora, Mexico. Vertical 

 range from near sea level in Sonora up to about 3,500 feet in 

 southern Arizona; zonal distribution, lower Sonoran. 



*Lepus alleni palitans Bangs. 



1900. Lepus (Macrotolagus) alleni palitans Bangs, Proc. New 

 England Zool. Club, vol. 1, p. 85. February 23, 1900. 



Type Locality. — Aguacaliente, about 40 miles southeast of 

 Mazatlan, Sinaloa, Mexico. 



Range. — Coastal plains of northwest Mexico from a little south 

 of Guaymas, in southern Sonora, south through Sinaloa to 

 Rosa Morada in northern Tepic. Vertical range from near 

 sea level to about 2,000 feet in southern Sonora ; zonal range arid 

 tropical and lower part of lower Sonoran zone. 



t*Lepus alleni tiburonensis Townsend. 



1912. Lepus alleni tiburonensis Townsend, Bull. Amer. Mus. 



Nat. Hist., vol. 31, p. 120. June 14, 1912. 

 Type Locality. — Tiburon Island, Gulf of Cahfornia, Sonora, 

 Mexico. 



t*Lepus gaillardi gaillardi Mearns. 



1896. Lepus gaillardi Mearns, Proc. U. S. Nat. Mus., vol. 18, p. 

 560. June 24, 1896. 



Type Locality. — West Fork of the Playas Valley, near monu- 

 ment No. 63, Mexican boundary line. Grant County, New 

 Mexico. 



Range. — Grassy plains of southwestern New Mexico near Mexi- 

 can border and southward, along eastern base of Sierra Madre, 

 through adjacent parts of northern Chihuahua. Vertical 

 range from about 4,500 to 7,000 feet in northwestern Chihua- 

 hua; zonal range mainly upper Sonoran extending into lower 

 part of transition zone. 



