230 EVOTOMYS. 



Evotomys rutilus True, Proc. U. S. Nat. Mus., 1885, p. 596. (nee 

 Mus rutilus Pallas.) 

 Alaska Red-backed Vole. 



Type locality. St. Michaels, Norton Sound, Alaska. 



Geogr. Distr. Alaska. Fort Yukon to St. Michaels. Limits of 

 range unknown. 



548. Evotomys orca Merriam. 



Evotomys orca Merr., Proc. Wash. Acad. Scien., 11, 1900, p. 24. 



Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 172. 



Zool. Ser. 

 Orca Red-backed Vole. 



Type locality. Orca, Prince William Sound, Alaska. 

 Geogr. Distr. Known only from the type locality. 



549. Evotomys gapperi (Vigors). 



Arvicola gapperi Vigors, Zool. Joum., v, 1830, p. 204, pi. ix. 

 Evotomys fuscodorsalis Allen, Bull. Am. Mus. Nat. Hist. N. Y., 



1894, p. 103. 

 Evotomys gapperi Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 172, fig. 37. Zool. Ser. 

 Gapper's Red-backed Vole. 



Type locality. Vicinity of Lake Simcoe, Ontario, Canada. 

 Geogr. Distr. Pennsylvania, New Jersey, and Massachusetts north- 

 ward, and in Canada west to the Rocky Mountains. 



a. Evotomys gapperi ochraceus Miller. 



Evotomys gapperi ochraceus Miller, Proc. Bost. Soc. Nat. Hist., 

 XXVI, 1894, p. 193. Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 172. Zool. Ser. 

 OcHRACEOus Red-backed Vole. 



Type locality. Mount Washington, Coos County, New Hampshire. 

 Altitude, 5,500 feet. 



Geogr. Distr. White Mountains of New Hampshire, and probably 

 east to Nova Scotia. 



b. Evotomys gctpperi rhoadsi Stone. 



Evotomys gapperi rhoadsi Stone, Amer. Nat., xxvii, 1893, p. 55. 



Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 173. 



Zool. Ser. 

 Rhoads' Red-backed Vole. 



Type locality. May's Landing, Atlantic County, New Jersey. 

 Geogr. Distr. Known only from the type locality. 



