ALASKA or SINGING VOLE, Microtus miurus 



(Avingak) 



Range. — Most of Alaska and Yukon Territory. 



Habitat. — Tundra or grassy areas beyond limit 

 of trees, diy to quite moist; from low elevations to 

 high in mountains; in alpine tundra near Paxson, 

 areas of snow deposition at Cape Thompson, and 

 brushy forest-tundra in northeiistern Brooks 

 Range. 



Raees in Alaska. — Four races of tlie Alaska vole 

 occur in the State: cantutor luis been recorded 

 from Fish Creek, north of Paxson; miurus (type 

 locality : head of Bear Creek in mountains near 

 Hope City) occupies the mountains of the Kenai 



Peninsula; niur/ei (type locality: Kutuk River, 

 tributaiy to Alatna River, Endicott Mountains) 

 occui"s in the Endicott Mountains and Brooks 

 Range, north to Umiat; o/t^-v (type locality: 

 Toklat River, Alaskan Range) lias been recorded 

 from the vicinity of Mount McKiiiley east to the 

 head of Jarvis Creek. 



Related species. — The insular vole, M/rrotu.s ab- 

 hrevia.tus, is resti'icted to Hall and St. Matthew 

 Islands in the Bering Sea. Each island has its own 

 race: a.bbrevi-(7tv.s (type locality: Hall Island); 

 and fisJierl (type locality; St. Matthew Island). 



^.aW-. 



.a.jfiv.^ 



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