MILLER AND REHN : NORTH AMERICAN MAMMALS. 135 



1897. Dicrostonyx hudsonius BANGS, Proc. biol. soc. Wash- 

 ington, xi, p. 237. September 17, 1897. 

 TYPE LOCALITY. Labrador. 



Dicrostonyx hudsonius alascensis Stone. 



1900. Dicrostonyx hudsonius alascensis STONE, Proc. acad. 



nat. sci. Phila., p. 37. March 24, 1900. 

 TYPE LOCALITY. Point Barrow, Alaska. 



* Dicrostonyx nelsoni Merriam. 



1885. Cuniculus torquatus TRUE, Proc. U. S. nat. mus., vn 



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

 1900. Dicrostonyx nelsoni MERRIAM, Proc. Washington 



acad. sci., n, p. 25. March 14, 1900. 

 TYPE LOCALITY. St. Michael's, Alaska, 



Dicrostonyx richardsoni Merriam. 



1900. Dicrostonyx richardsoni MERRIAM, Proc. Washington 



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



TYPE LOCALITY. Fort Churchill, west shore of Hudson Bay, 

 Kewatin, Canada. 



Dicrostonyx unalascensis Merriam. 



1900. Dicrostonyx unalascensis MERRIAM, Proc. Washing- 

 ton acad. sci., n, p. 25. March 14, 1900. 

 TYPE LOCALITY. Unalaska, Alaska. 



Family GEOMYIDAE. 



Genus GEOMYS Rafinesque. 1 



1817. Geomys RAFIXESQUE, Amer. monthly magazine, n, p. 45. 

 November, 1817. Type. Geomys pinetis RAFINESQUE (=]Mus 

 tuza ORD). 



1 Revised by Merriam, North Amer. fauna, no. 8, pp. 109-145. January 31, 1895. 



