134 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
* Lemmus alascensis Merriarn. 
1885. 3Iyodes obensis True, Proc. U. S. nat. mus., vii 
(1884), p. 596. 1885. (Part.) 
1900. Lem^yms alascensis Meeriam, Proc. Washington acad. 
sci., II, p. 26. March 14, 1900. 
Type locality. — Point Barrow, Alaska. 
Lemmus nigripes (True). 
1894. 3Iyodes nigripes True, Diagnoses of new North Amer¬ 
ican mammals, p. 2. April 26,1894. (Reprint: Proc. U. S. 
nat. mus., xvii, p. 242. November 15, 1894.) 
1896. nigripes Miller, North Amer. fauna, no. 
12, p. 37. July 23, 1896. 
Type locality. — St. George Island, Pribilof Islands, Bering 
Sea. 
Lemmus trimucronatus (Richardson). 
1825. Arcicola trinvucronata Richardson, Joiirn. Parry’s sec¬ 
ond voyage, app., p. 309. 
1900. I/emmus trirnucronatus Stone, Proc. acad. nat. sci. 
Phila., p. 35. March 24, 1900. 
Type locality. — Point Lake, Mackenzie, Canada. 
Lemmus yukonensis Merriam. 
1900. Leimnus yukonensis Merriam, Proc. Washington acad. 
sci., II, p. 27. March 14, 1900. 
Type locality. — Charlie Creek, Yukon River, Alaska. 
Genus DICROSTONYX Gloger. 
1841. Dicrostonyx Gloger, Gemeinn. Hand- u. Hilfsbuch d. 
Naturgesch., pp. xxxi, 97. Type. —An American species, probably 
Mils hudsonius Pallas. 
Dicrostonyx hudsonius (Pallas). 
1778. 3fus hudsonius Pallas, Nov. sp. quadr. glir. ord., p. 
208. 
