Nearctic Brown Lemming – Lemmus trimucronatus

Lemmus trimucronatusRichardson, 1825

Accepterad namn, Mammal Species of the World 2005

Rausch (1953) proposed the synonymy of trimucronatus and nigripes under Old World L. sibiricus, a taxonomic arrangement elaborated by Rausch and Rausch (1975b) and maintained in subsequent faunal and systematic works (Banfield, 1974; Hall, 1981; Honacki et al., 1982; Jones et al., 1986, 1997; Musser and Carleton, 1993). As now understood, L. trimucronatus is the only true lemming to exhibit a recent transberingian geographic distribution; see Chernyavskii et al. (1993) and Federov et al. (1999a), who speculated about Beringian history and possible dispersion pathways for lemmings. North American subspecies revised by Davis (1944) and retained as such by Hall and Cockrum (1953) and Hall and Kelson (1959); North American populations reviewed by Batzli (1999). Corbet and Hill (1991) continued to recognize the St. George Isl form nigripes as a species.Among Eurasian Lemmus, hybridization results (Pokrovski et a... [truncated]

• Wilson, D and Reeder, D. (eds.) 2005. Mammal Species of the World. A Taxonomic and Geographic Reference. 3rd ed. -- 2142 pp. Johns Hopkins University Press.