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 oeconomus (Pallas, 1776) . Reise Prov. Russ. Reichs., 3:693 . TYPE LOCALITY: U.S. S. R ., R .S.F.S. R ., Omsk. Obi., Ishim Valley . DISTRIBUTION: N. Palearctic, from Scandinavia and the Netherlands east to Chukotka ( U.S. S.R.); south to S.E. Germany , Hungary , Ukraine , Kazakhstan , Tibet , Szechwan, and Heilungkiang ( China ) (SW), and Ussuri region; Kurile Islands and Sakhalin; St. Lawrence Isl. (Bering Sea); Alaska ( U.S.A. ); Yukon and Northwest Territories ( Canada ). COMMENT: Subgenus Sumeriomys (= Suranomys Chaline, 1974 ), see Argyropulo, 1933, Z. Saugetierk., 8:180-182; or Microtus ; see Gromov and Polyakov, 1977:295 , and Gromov and Baranova, 1981:209 . The taxon limnophilus, an isolate described from the Tsaidam, Tsinghai, China , is usually assigned to this species (see Corbet, 1978:115), but may be a distinct species; see Orlov et al., 1978 , [Geogr. and Dynamics of Plants and Anim. in the Mongolian People's Republic], p. 149- 164; also see Sokolov and Orlov, 1980:151 , who included Sinkiang , Kansu , N.W. China , and W. Mongolia in the distribution of limnophilus, which they considered a distinct species. Includes ratticeps; see Corbet, 1978:115. Ognev, 1950 , [Mammals of the U.S. S.R. and Adj. Count.], Vol. 7, Rodents, Engl. Trans., 1964:1 -626, and Ellerman, 1941 , differed in the name used for this species; see Hall, 1981:805 . Ognev's arguments for ratticeps are convincing, but would require nomenclatural reorganization in two subgenera. This problem might be best submitted to the ICZN for resolution (SRL). ISIS NUMBER: 5301410008080032001.