MILLER AND REHN: NORTH AMERICAN MAMMALS. 125 



TYPE LOCALITY. " Near the foot of the Rocky Mountains." 

 According to Bailey (North Amer. fauna, no. 17, p. 60, June 6, 

 1900) the type was collected by Drummond in the vicinity of Jas- 

 per House, Alberta, Canada. 



Microtus richardsoni macropus (Men-lam) . 



1891. Arvicola (Mynomes) macropus MERRIAM, North 



Amer. fauna, no. 5, p. 59. July 30, 1891. 

 1900. Microtus richardsoni macropus BAILEY, North Amer. 



fauna, no. 17, p. 61. June 6, 1900. 

 TYPE LOCALITY. Pahsimeroi Mountains, Idaho. Altitude, 



about 9700 feet. 



Microtus richardsoni arvicoloides (Khoads). 



1894. Aulacomys arvicoloides RHOADS, Amer. nat., xxvm, 

 p. 182. February 11, 1894. 



1900. Microtus richardsoni arvicoloides BAILEY, North 

 Amer. fauna, no. 17, p. 02. June 6, 1900. 



TYPE LOCALITY. Lake Kichelos, Kittitas County, Washing- 

 ton. Altitude, 8000 feet. 



Subgenus PITYMYS McMurtrie. 



1831. Pitymys McMuRTRiE, Cuvier's anim. kingdom, Amer. 

 ed., i, p. 434. Type. Psammomys pinetorum LE CONTE. 



* Microtus pinetorum (Le Conte) . 



1830. Psammomys pinetorum LE COXTE, Ann. lye. nat. hist. 



Xew York, in, p. 133. 

 1885. Arvicola pinetorum TRUE, Proc. U. S. nat. mus., vn 



(1884), p. 596. 1885. (Part.) 

 1896. Microtus pinetorum MILLER, North Amer. fauna, no. 



12, p. 9. July 23, 1896. >-,- 



TYPE LOCALITY. Pine forests of Georgia, probably on the Le 



Conte plantation, near Riceboro, Liberty County. 



Microtus pinetorum scalopsoides (Audubon and Bachman) . 

 1841. Ami-cola scalopsoides AUDUBON and BACHMAN", Proc. 

 aead. nat. sci. Phila., i, p. 97. October, 1841. 



