Microtus miurus Osgood, 1901 . N. Am. Fauna, 21:64.

TYPE LOCALITY: USA, Alaska, Cook Inlet, Turnagain Arm, head of Bear Creek in mtns near Hope City .

DISTRIBUTION: Wet tundra and streambanks of N Alaska, N Yukon, and westernmost Northwest Territories; allopatric segment in SE Alaska and SW Yukon.

SYNONYMS: andersoni, cantator, muriei, oreas, paneaki.

COMMENTS: Classically treated as a member of the subgenus Stenocranius, related to Old World M. gregalis and synonymized with same by Rausch (1964) and Rausch and Rausch (1968). Other data clearly support their specific distinctiveness (see Anderson, 1960; Fedyk, 1970; Vorontsov and Lyapunova, 1986). Zagorodnyuk (1990) further emphasized the distant kinship of M. gregalis and M. miurus by placing them in different subgenera, allying miurus with certain Old World species of the subgenus Alexandromys .