244 MICROTUS. 



MicrotMS longicaudus Elliot, Syn. N. Am. Mamm., F. C. M. Pub.. 

 II, 1901, p. 191. Zool. Ser. 

 Long-tailed Meadow Vole. 



Type locality. Custer, Black Hills, Custer County, South Dakota. 

 Altitude, 5,500 feet. 



Geogr. Distr. Western South Dakota and Wyoming. 



587. Microtus mordax (Merriam). 



Arvicola (Mynomes) mordax Merr., N. Am. Faun., No. 5, i8gi, 



p. 61. 

 Microtus vellerosus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1899 



p. 7. 

 Microtus cautus Allen, Bull. Am. Mus. Nat. Hist. N.Y., 1899.P. 7. 

 Microtus mordax ElHot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 191. Zool. Ser, 

 Cantankerous Meadow Vole. 



Type locality. Sawtooth (or Alturas) Lake, east base of Sawtooth 

 Mountains, Idaho. Altitude, 7,200 feet. 



Geogr. Distr. Rocky Mountains and contiguous ranges from lati- 

 tude 60° to northern New Mexico, and in the Cascades and Sierra 

 Nevada to Kaweah and Kern rivers, California. 



588. Microtus macrurus Merriam. 



Microtus macrurus Merr., Proc. Acad. Nat. Scien. Phil., 1898, 

 p. 353. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 p. 191. Zool. Ser. 

 Olympic Meadow Vole. 



Type locality. Lake Cushman, Olympic Mountains, Washington. 

 Geogr. Distr. Olympic Mountains, Washington, and along the 

 coast of British Columbia north to Yakutat in Alaska. 



589. Microtus angusticeps Bailey. 



Microtus angusticeps Bailey, Proc. Biol. Soc. Wash., xii, 1898, 

 p. 86. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 p. 192. Zool. Ser. 

 Coast Meadow Vole. 



Type locality. Crescent City, Del Norte County, California. 

 ■Geogr. Distr. Coast region of northwestern California and south- 

 western Oregon. 



590. Microtus alticola (Merriam). 



Arvicola {Mynomes) alticolus! Merr., N. Am. Faun., No. 3, 1890, 

 p. 67, pi. V, figs. I, 2, and pi. vi, figs, i, 2, 3, 4. 



Microtus alticola Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1 90 1, p. 10 2. Zool. Ser. 



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