NORTH AMERICAN LAND MAMMALS. 213 



t*Evotomys califomicus Meiriam. 



1890. Evotomys califomicus Merrl^M; North Amer. Fauna, No. 4, 



p. 26. October 8, 1890. 

 Type Locality. — Eureka, Humboldt County, California. 

 Range. — Coast strip of Oregon and northern California. 



t*Evotomys occidentalis Merriam. 



1890. Evotomys occidentalis Merriam, North Amer. Fauna, No. 4, 

 p. 25. October 8, 1890. 



1894. Evotomys pygmseus Rhoads, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 284. October 23, 1894. (Mouth of the Nisqually 

 River, Pierce County, Wasliington.) 



Type Locality. — Aberdeen, Chehalis County, Washington. 



Range. — Coast and Puget Sound region of Washington and 

 southern British Columbia. 



t*Evotomys nivarius Bailey. 



1897. Evotomys nivarius Bailey, Proc. Biol. Soc. Washington, 



vol. 11, p. 136. May 13, 1897. 

 Type Locality. — Northwest slope of Mount EUmor, Olympic 



Mountains, Washington. Altitude, 4,000 feet. 

 Range. — ^Mount Ellinor and probably other high peaks in the 



Olympic Mountains. 



Evotomys proteus Bangs. 



1897. Evotomys proteus Bangs, Proc. Biol. Soc. Washington, 



vol. 11, p. 137. May 13, 1897. 

 Type Locality. — Hamilton Inlet, Labrador. 



Genus MICROTUS ^ Schrank. 



1798. Microtus Schrank, Fauna Boica, vol. 1, Abth. 1, p. 72. 

 Type, Microtus terrestris Schrank = Mus arvalis Pallas. 



Subgenus Microtus Schrank. 



1894. Tetramerodon Rhoads, Proc. Acad. Nat. Sci. Philadelphia, 

 p. 282. October 23, 1894. Type, Arvicola tetramerus Rhoads. 



*Microtus pennsylvanicus pennsylvanicus (Ord). 



1815. Mu^ pehnsylvanica Ord, Guthrie's Geography, 2d Amer. 



ed., vol. 2, p. 292. 

 1885. Arvicola riparius riparius True, Proc. U. S. Nat. Mus., 



vol. 7 (1884), p. 597. 1885. (Part.) 



1895. M[icrotus] pennsylvanicus Rhoads, Amer. Nat., vol. 29, 

 p. 940. October, 1895. 



Type Locality. — ^Meadows below Philadelphia, Pennsylvania. 



» Revised by Bailey, North Amer. Fauna, No. 17, June 6, 1900. 



