134 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



* Lemmus alascensis Merriam. 



1885. Myodes obensis TRUE, Proc. TJ. S. nat. mus., vn 



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

 1900. Lemmus alascensis MERRIAM, Proc. Washington acad. 



sci., n, p. 26. March 14, 1900. 

 TYPE LOCALITY. Point- Barrow, Alaska. 



Lemmus nigripes (True) . 



1894. Myodes nigripes TRUE, Diagnoses of new North Amer- 

 ican mammals, p. 2. April 26, 1894. (Reprint : Proc. TJ. S. 

 nat. mus., xvn, p. 242. November 15, 1894.) 



1896. _L[emmus] 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. Arvicola trimucronata RICHARDSON, Journ. Parry's sec- 

 ond voyage, app., p. 309. 



1900. Lemmus trimucronatus STONE, Proc. acad. nat. sci. 

 Phila., p. 35. March 24, 1900. 



TYPE LOCALITY. Point Lake, Mackenzie, Canada. 



Lemmus yukonensis Merriam. 



1900. Lemmus yukonensis MERRIAM, Proc. Washington acad. 



sci., n, 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 

 Mus hudsonius PALLAS. 



Dicrostonyx hudsonius (Pallas). 



1778. Mus Jiudsonius PALLAS, Nov. sp. quadr. glir. ord., p. 

 208. 



