Synaptomys borealis

• Main Authors: Don E. Wilson, Russell A. Mittermeier, Thomas E. Lacher, Jr
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Rodentia; Cricetidae; Synaptomys; Synaptomys borealis; Canada; British Columbia; Great Bear Lake; Tundra; Alaska
• Online Access: https://zenodo.org/record/6710602; https://doi.org/10.5281/zenodo.6710602

27. Northern Bog Lemming Synaptomys borealis French: Lemming boréal / German: Nordlicher Moorlemming / Spanish: Lemming de pantano septentrional Other common names: Okanagan Bog Lemming Taxonomy. Arvicola borealis J. Richardson, 1828, “Great Bear Lake,” District of Mackenzie, Canada. Nine subspecies are recognized. Subspecies and Distribution. S.b.borealisJ.Richardson,1828—NorthwestTerritories,extremeSWNunavut,NEBritishColumbia,N&CAlberta,WSaskatchewan,andNManitoba,Canada. S.b.artemisiaeR.M.Anderson,1932—extremeSCBritishColumbia,Canada. S.b.chapmani].A.Allen,1903—SEBritishColumbiaandSWAlberta,Canada,andNEWashington,NIdaho,andNWMontana,USA. S.b.dalliMerriam,1896—C,SC,&SWAlaska,USA,andYukonandN&CBritishColumbia,Canada. S.b.innuitusTrue,1894—NQuebec,Canada. S.b.medioximusBangs,1900—NEQuebecandLabrador,Canada. S.b.smithiR.M.Anderson&Rand,1943—N&ECSaskatchewan,mostofManitoba,andNOntario,Canada,andNENorthDakotaandNWMinnesota,USA. S.b.sphagnicolaPreble,1899—SEQuebecandNewBrunswick,Canada,andMaineandNewHampshire,USA. S. b. truei Merriam, 1896 — SE Alaska, coastal British Columbia, and NW Washington. Descriptive notes. Head-body 93-113 mm, tail 17-27 mm; weight 27-35 g. Northern Bog Lemmings vary substantially in morphology across their distribution. They are smallto medium-sized, and tail is bicolored and short. Dorsum is grizzled gray to brown, with some black hair interspersed, and venter is plumbeous. Feet are gray to near black. There are a few hairs at bases of ears that are distinctly brighter than rest of pelage. Females have four pairs of nipples. Lower molars do not have closed triangles on labial sides and almost no outer reentrant angles. Lower incisors are relatively slender and sharply pointed. Posterior edge of palate has a noticeable spinous process. Habitat. Wet habitats with sedges and grasses in riparian zones, meadows and bogs in pine, spruce-fir, or spruce-cedar forests. Northern Bog Lemmings also can be found in wet tundra and successional grasslands after forest fires. In ...