1901. Microtus miurus Osgood, N. Amer. Fauna, 21:64, September 26, type from head of Bear Creek, in mts. near Hope City, Turnagain Arm, Cook Inlet, Alaska.

Microtus miurus muriei Nelson.

1931. Microtus muriei Nelson, Jour. Mamm., 12:311, August 24, type from Kutuk River (tributary of Alatna River), Endicott Mts., Alaska.

1950. Microtus miurus paneaki Rausch, Jour. Washington Acad. Sci., 40:135, April 21, type from Tolugak Lake (lat. 68° 24′ N, long. 152° 10′), Brooks Range, Alaska.

Microtus miurus oreas Osgood.

1907. Microtus miurus oreas Osgood, Proc. Biol. Soc. Washington, 20:61, April 18, type from Toklat River, Alaskan Range, Alaska.

Transmitted July 8, 1952.