MILLER AND REHN: NORTH AMERICAN MAMMALS. 125 
Type locality. — “Xear the foot of the Rocky Mountains.’’ 
According to Bailey (North Amer. fauna, no. 17, p. 60, June 6, 
1900) the type was collected Drummond in the vicinity of Jas¬ 
per House, Alberta, Canada. 
Microtus richardsoni macropus (Merriam). 
1891. Arvicola [Mt/)iomes) macropus Merriam, North 
Amer. fauna, no. 5, p. 59. July 30, 1891. 
1900. 3Iicrotus ricJiardsoni macropiis Bailey', North Amer. 
fauna, no. 17, p. 61. June 6, 1900. 
Ty'pe LOCALITY'.— Pahsimei’oi Mountains, Idaho. Altitude, 
about 9700 feet. 
Microtus richardsoni arvicoloides (Rhoads). 
1894. Aulacomys arvicoloides Rhoads, Amer. nat., xxviii, 
p. 182. February 11, 1894. 
1900. Microtus richardsoni arvicoloides Bailey', North 
Amer. fauna, no. 17, p. 62. June 6, 1900. 
Ty'pe localityl — Lake Kichelos, Kittitas County, Washing¬ 
ton. Altitude, 8000 feet. 
Subgenus Pity'my'S McMurtrie. 
1831. Pitymys McMurtrie, Cuvier’s anim. kingdom, Amer. 
ed., I, p. 434. Type. — Psanimomys pinetorum Le Comte. 
* Microtus pinetorum (Le Conte). 
1830. Psamynomyspinetorum Le Comte, Ann. lyc. nat. hist. 
New York, iii, p. 133. 
1885. Arvicola pinetorum True, Proc. IT. S. nat. mus., yii 
(1884), p. 596. 1885. (Part.) 
1896. Microtus pinetorum Miller, North Amer. fauna, no. 
12, p. 9. July 23, 1896. 
Ty'pe LOCALITY'.— Piiie forests of Georgia, probably on the Le 
Conte plantation, near Riceboro, Liberty County. 
Microtus pinetorum scalopsoides (Audubon and Bachman). 
1841. Arvicola scalopsoides Audubom and Bachmam, Proc. 
acad. nat. sci. Phila., i, p. 97. October, 1841. 
