MILLER AND REHN: NORTH AMERICAN MAMMALS. 123 
Microtus alticola (Merriam). 
1890. Armcola {Mtjnomes) alticolus Merriam, North Amer. 
fauna, no. 3, p.‘67. September 11, 1890. 
1895. Microtus alticolus Allex, Bull. Amer. mus. nat. hist., 
VII, p. 219. June 29, 1895. 
Type locality.— Little Spring, San Francisco Mountain, 
Coconino County, Arizona. Altitude, 8200 feet. 
Microtus alticola leucophaeus (Allen). 
1894. Armcola leucophaeus Allen, Bull. Amer. mus. nat. 
hist., VI, p. 320. November 7, 1894. 
1900. Microtus alticolus leucophaeus Bailey, North Amer. 
fauna, no. 17, p. 53. June 6, 1900. 
Type locality. — Graham Mountains, Graham County, Ari¬ 
zona. 
* Microtus mexicanus (Saussure). 
1861. Arvicola (^Herniotomys') mexicanus Saussure, Revue 
et magasin de zoologie, 2d ser., xiii, p. 3. January, 1861. 
1885. Armcola mexicanus True, Proc. U. S. nat. mus., vii 
(1884), p. 597. 1885. 
1897. \^Microtus'] mexicanus Trouessart, Catal. mamm., pt. 
Ill, p. 564. 
Type locality. — Mount Orizaba, State of Puebla, Mexico. 
Microtus mexicanus phaeus (Merriam). 
1892. Armcola phaeus Merriam, Proc. biol. soc. Washing¬ 
ton, VII, p. 171. September 29, 1892. 
1900. Microtus mexicanus phaeus Bailey, North Amer. 
fauna, no. 17, p. 54. June 6, 1900. 
Type LOCALITY.— North slope of Sierra Nevada de Colima, 
State of Jalisco, Mexico. Altitude, 10,000 feet. 
Microtus fulviventer Merriam. 
1898. Microtus fulmrenter Merriam, Proc. biol. soc. Wash¬ 
ington, XII, p. 106. April 30, 1898. 
Type locality. — Cerro San Felipe, State of Oaxaca, Mexico. 
Altitude, 10,200 feet. 
Microtus mogollonensis (Mearns). 
1890. Arvicola moyollonensis Mearns, Bull. Amer. mus. nat. 
hist., II, p. 283. February 21, 1890. 
