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 (Mynomes) montanus Peale 1848 Microtus (Mynomes) montanus Peale 1848 , Mammalia , in: Repts. U. S. Expl. Surv., Vol. 8: 44 . Type Locality: USA , California , Siskiyou Co., headwaters of Sacramento River, near Mt Shasta. Vernacular Names: Montane Vole . Synonyms: Microtus (Mynomes) amosus Hall and Hayward 1941 ; Microtus (Mynomes) arizonensis Bailey 1898 ; Microtus (Mynomes) canescens Bailey 1898 ; Microtus (Mynomes) caryi Bailey 1917 ; Microtus (Mynomes) codiensis S. Anderson 1954 ; Microtus (Mynomes) dutcheri Bailey 1898 ; Microtus (Mynomes) fucosus Hall 1935 ; Microtus (Mynomes) fusus Hall 1938 ; Microtus (Mynomes) longirostris ( Baird 1857 ) ; Microtus (Mynomes) micropus Hall 1935 ; Microtus (Mynomes) nanus (Merriam 1891) ; Microtus (Mynomes) nevadensis Bailey 1898 ; Microtus (Mynomes) nexus Hall and Hayward 1941 ; Microtus (Mynomes) pratincolus Hall and Kelson 1951 ; Microtus (Mynomes) rivularis Bailey 1898 ; Microtus (Mynomes) undosus Hall 1935 ; Microtus (Mynomes) yosemite Grinnell 1914 ; Microtus (Mynomes) zygomaticus S. Anderson 1954 . Distribution: Cascade, Sierra Nevada, and Rocky Mountain ranges: SC British Columbia , Canada , south to EC California , S Utah , and NC New Mexico , USA ; disjunct populations in S Nevada , EC Arizona , and WC New Mexico ( Frey et al., 1995 ). Conservation: IUCN – Data Deficient as M. m. codiensis and M. m. zygomaticus, Vulnerable as M. m. fucosus and M. m. nevadensis , Lower Risk (nt) as M. m. arizonensis and M. m. rivularis , otherwise Lower Risk (lc). Discussion: Subgenus Mynomes , montanus species group ( Zagorodnyuk, 1990 ). Geographic variation and subspecific classification assessed by Anderson (1959) , who viewed M. oeconomus as its sister species. Hooper and Hart (1962) arranged M. montanus with M. pennsylvanicus and M. townsendii , a general relationship corroborated by karyotypic and genic analyses ( Modi, 1987 ; Moore and Janecek, 1990 ). Two karyotypic morphs reported by Judd et al. (1980), who raised the question of their specific distinction. See Sera and Early (2003 , Mammalian Species, 716).