NORTH AMERICAN LAND MAMMALS. 213 



t*Evotomys californicus Meniam. 



1890. Evotomys californicus Merriam, 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. O'louth of the Nisqually 

 River, Pierce County, Washington.) 



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 Ellinor, 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. Mus pennsylvanica 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, Amor. Nat., vol. 29, 

 p. 940. October, 1895. 



Type Locality. — ^^leadows below Philadelphia, Pennsylvania. 



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



