Order Rodentia - Family Cricetidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 955 1189 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Microtus (Alexandromys) maximowiczii Schrenk 1859 Microtus (Alexandromys) maximowiczii Schrenk 1859 , Reisen und Forsch., in: Saugeth. Amurlande St. Petersburg ., Vol. 1: 140 . Type Locality: Russia , Chita Oblast, upper Amur region , mouth of Omutnaya River. Vernacular Names: Maximowicz's Vole . Synonyms: Microtus (Alexandromys) gromovi Vorontsov, Boeskorov, Ljapunova, and Revin 1988 ; Microtus (Alexandromys) ungurensis Kastschenko 1912 . Distribution: E shore of Lake Baikal to upper Amur region (Meyer et al., 1996), E Mongolia , and NE China ( Heilongjiang , Nei Mongol , Jilin , Hebei , and N Shaanxi ; Zhang et al., 1997 ). Conservation: IUCN – Lower Risk (lc). Discussion: Subgenus Alexandromys , maximowiczii species group ( Pavlinov and Rossolimo, 1998 ; Pavlinov et al., 1995 a ; Zagorodnyuk, 1990 ). Included in subgenus Microtus by Gromov and Polyakov (1977) , Pavlinov and Rossolimo (1987) , and Meyer et al. (1996). Karyotypic, morphological and hybridization evidence closely relates M. maximowiczii to M. mujanensis and M. evorensis (Meyer et al., 1996) . Reviewed by Orlov and Kovalskaya (1978) and Meyer (1983) . Populations in Russia revised by Meyer et al. (1996), who attributed the two synonyms. Additional intraspecific chromosomal polymorphisms analysed by Kovalskaya (1977) . Molar variation in the M. maximowiczii species group, as analyzed by Pozdnyakov (1993) , reveals significant differences between maximowiczii from the Amur region and other geographic samples.