598 U. S. NATIONAL MUSEUM BULLETIN 205 



Microtus longicaudus leucophaeus (J. A. Allen) * 



1894. Arvicola leucophaeus J. A. Allen. Bull. Amer. Mus. Nat. Hist., vol. 6, 



p. 320, Nov. 7, 1894. 

 1938. Microtus longicaudus leucophaeus Goldman, Journ. Mamra., vol. 19, 



No. 4, p. 491, Nov. 14, 1938. 

 Type Locality. — Graham Mountains, Graham County, Ariz. Range. — Graham 

 Mountains, south-central Arizona. 



Microtus longicaudus alticola (Merriam) f* 



1890. Arvicola (Mynomes) alticolus Merriam, North Amer. Fauna No. 3, 

 p. 67, Sept. 11, 1890. 



1938. Microtus longicaudus alticola Goldman, Journ. Mamm., vol. 19, No. 4, 

 p. 491, Nov. 14, 1938. 



Type Locality. — Little Spring, San Francisco Mountain, Coconino County, 

 Ariz. Altitude, 8,200 feet. Range. — Boreal Zone of San Francisco Mountain, 

 from 8,200 feet altitude up to timberline at 11,000 feet; and eastern Utah east of 

 Green and Colorado Rivers (Kelson, Univ. Utah Biol. Ser., vol. 11, No. 3, p. 99, 

 Feb. 15, 1951). 



Microtus longicaudus baileyi Goldmanf * 



1938. Microtus longicaudus baileyi Goldman, Journ. Mamm., vol. 19, No. 4, 

 p. 492, Nov. 14, 1938. 



Type Locality. — Greenland Spring, head of Bright Angel Creek, Kaibab 

 Plateau, Grand Canyon National Park, Coconino County, Ariz. Altitude, 8,000 

 feet. Range. — Apparently restricted to higher parts of Kaibab Plateau, northern 

 Arizona. 



Microtus longicaudus latus I Jail* 



1931. Microtus mordax latus Hall, Univ. California Publ. Zool., vol. 37, No. 1, 

 p. 12, Apr. 10, 1931. 



1938. Microtus longicaudus latus Goldman, Journ. Mamm., vol. 19, No. 4, 

 p. 491, Nov. 14, 1938. 



Type Locality. — Wisconsin Creek, Toyabe Mountains, Nye County, Nev. Al- 

 titude, 8,500 feet. Range. — Most of Nevada in Boreal Zone, excepting Sierra 

 Nevada, Elko County, and northern parts of Humboldt and Washoe Counties; 

 not found even in high mountains south of lat. 37°30' N. (Hall, Mammals of 

 Nevada, p. 552, July 1, 1946). Also found in western and south-central Utah 

 (Durrant, Univ. Kansas Publ. Mus. Nat. Hist., vol. 6, p. 371, Aug. 10, 1952) 

 and presumably also in eastern California. 



Microtus longicaudus bernardinus Merriamf* 



1908. Microtus mordax bernardinus Merriam, Proc. Biol. Soc. Washington, 

 vol. 21, p. 145, June 9, 1908. 



1938. Microtus longicaudus bernardinus Goldman, Journ. Mamm., vol. 19, 

 No. 4, p. 492, Nov. 14, 1938. 



Type Locality. — Dry Lake, San Bernardino Mountains, San Bernardino County, 

 Calif. Altitude, 9,050 feet. Range. — Higher parts of San Bernardino Moun- 

 tains, in San Bernardino County; vertical range, 7,500 feet (Bluff Lake) up to 

 9,050 feet (Dry Lake) ; zonal range, high Transition and Canadian (Grinnell, 

 Univ. California Publ. Zool., vol. 40, No. 2, p. 190, Sept. 26, 1933) . 



