Order Rodentia (Part 4) Author James H. Honacki Author Kenneth E. Kinman Author James W. Koeppl text 1982 Alien Press, Inc. & The Association of Systematics Collections Lawrence, Kansas, USA Editor James H. Honacki Editor Kenneth E. Kinman Editor James W. Koeppl Mammal Species of the World (1 st Edition) 477 504 book chapter http://doi.org/10.5281/zenodo.7353034 4170533d-8435-4cb4-93df-e7f9489eb798 0-89327-235-3 7353034 Microtus middendorffi (Poliakov, 1881) . Mem. Acad. Imp. Sci. St. Petersb., 39(2): 70 . TYPE LOCALITY: U.S. S. R ., R .S.F.S. R ., Krasnoyarsk. Krai, Taimyr Peninsula . DISTRIBUTION: N.C. and N.E. Siberia, from the Polar Ural Mtns, to the Kolyma River , and N. of Magadan . COMMENT: Subgenus Microtus ; see Matthey and Zimmerman, 1961, Rev. Suisse Zool., 68:63-72; includes hyperboreus , see Gileva, 1972 , Dokl. Akad. Nauk S.S.S.R., 203:689-692, and Pokrovskii et al., 1975, [Population fluctuations of animals], Acad. Sci., Sverdlovsk, p. 39-62; see also Corbet, 1978:116; but see Gromov and Polyakov, 1977:312 , and Gromov and Baranova, 1981:214 ; OLR also retains hyperboreus as a separate species. ISIS NUMBER: 5301410008080025001 as M. middendorffi . 5301410008080016001 as M. hyperboreus .