A revision of the didelphid marsupial genus Marmosa. Part 3, A new species from western Amazonia, with redescriptions of M. perplexa Anthony, 1922, and M. germana Thomas, 1904. (American Museum novitates, no. 3969)

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dc.contributor.authorVoss, Robert S.
dc.contributor.authorGiarla, Thomas C.
dc.date.accessioned2021-04-01T15:43:54Z
dc.date.available2021-04-01T15:43:54Z
dc.date.issued2021-04-01
dc.description28 pages : illustrations (chiefly color), map ; 26 cm.en_US
dc.description.abstractWe describe a new species of woolly mouse opossum from northwestern Amazonia, Marmosa jansae, based on museum specimens previously misidentified either as M. germana Thomas, 1904, or as M. regina Thomas, 1898. Instead of being closely related to either of those species, M. jansae appears to be the sister taxon of M. perplexa Anthony, 1922, a trans-Andean species previously synonymized with M. phaea Thomas, 1899. We redescribe M. perplexa, which inhabits critically endangered evergreen and semideciduous forests in southwestern Ecuador and northwestern Peru. We also redescribe M. germana, an Amazonian species that has long been synonymized with M. regina, but which molecular analyses now suggest is the sister taxon of a trans-Andean species complex that includes M. alstoni (Allen, 1900). These results substantially clarify the long-confused taxonomy of woolly mouse opossums (subgenus Micoureus), provide new examples of sister-group relationships between upper-Amazonian and trans-Andean taxa, and raise interesting questions about congeneric diversity in northwestern Amazonia, where as many as six species of Marmosa might occur sympatrically.en_US
dc.identifier.urihttp://digitallibrary.amnh.org/handle/2246/7262
dc.language.isoen_USen_US
dc.publisherNew York, NY : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates;no. 3968.
dc.subjectMarmosa jansae.en_US
dc.subjectMarmosa -- Amazon River Valley -- Classification.en_US
dc.subjectOpossums -- Amazon River Valley -- Classification.en_US
dc.subjectMammals -- Amazon river Valley -- Classification.en_US
dc.titleA revision of the didelphid marsupial genus Marmosa. Part 3, A new species from western Amazonia, with redescriptions of M. perplexa Anthony, 1922, and M. germana Thomas, 1904. (American Museum novitates, no. 3969)en_US
dc.typeBooken_US

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