BROWN LEMMING, Lemmus trimucronatus 



(Avingapiak) 





Range. — Most of Alaska and Arctic Canada 

 west of Hudson Bay, Baffin Island. 



Habitat. — Typically prefers damp tundra on 

 Arctic coastal plain, but occasionally in drier up- 

 land areas, as in Brooks Range and alpine areixs 

 of Alaska Range. 



Races inAh.ska. — On the mainland are the races 

 ala.sce7i.sis (type locality: Point Barrow) ; minu.f- 

 cultirS (type locality: near junction of Kakhtul 

 and Mulchatna Rivei-s) ; and .mbaretim.s (type 

 locality: Lake Schrader, Brooks Range). The 

 race Karroldi (type locality: Nunivak Island) is 

 apparently restricted to this island. 



Related sfecies. — The black- footed lemming, 

 Lemmus nigripes (type locality: St. George Is- 

 land, Pribilof Islands) is known only from this 

 island. 



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26 



