Best Opossum
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The water opossum is the semiaquatic yapok, Chironectes minimus, described in 1780 and the most aquatic living marsupial from Mexico to Argentina.
The Virginia opossum (Didelphis virginiana) is the northernmost living marsupial, ranging from Costa Rica into Canada and named by Kerr in 1792.
The black-shouldered opossum is the sole species of Caluromysiops, described in 1951 and known from western Brazil and southeastern Peru.
The bare-tailed woolly opossum is a South American Caluromys described by Linnaeus in 1758, known for a woolly coat and partly naked prehensile tail.
The common opossum (Didelphis marsupialis) is a large tropical American marsupial named by Linnaeus in 1758 and found from Mexico to Bolivia.
Derby's woolly opossum is a Neotropical Caluromys described in 1841, ranging from southern Mexico to western Ecuador and Colombia.
The Andean white-eared opossum (Didelphis pernigra) is an Andean species from Venezuela to Bolivia, split from D. albiventris in 2002.
The big lutrine opossum (Lutreolina crassicaudata) is an otter-like South American marsupial named in 1804, noted for swimming near wetlands.
The Chacoan pygmy opossum is the only Chacodelphys species, erected in 2004 after long being known from one 1920 specimen from Formosa, Argentina.
The big-eared opossum (Didelphis aurita) is a South American Didelphis species from Argentina, Brazil and Paraguay, named by Wied-Neuwied in 1826.
The white-eared opossum (Didelphis albiventris) is a habitat-generalist South American species named by Lund in 1840 and common in open areas.
The red-bellied gracile opossum (Cryptonanus ignitus) is an Argentine didelphid described in 2002, last recorded in Jujuy Province in 1962.
The Guianan white-eared opossum (Didelphis imperfecta) is a Guiana Shield species named in 1984, with the smallest range in Didelphis.
The Chacoan gracile opossum is a Cryptonanus species named in 1931, native to Argentina, Brazil and Paraguay in and near the Gran Chaco.
The agile gracile opossum (Gracilinanus agilis) is a nocturnal arboreal didelphid of South America, named by Burmeister in 1854.
Agricola's gracile opossum is an eastern Brazilian Cryptonanus named in 1943, associated with caatinga and cerrado habitats and still data deficient.
The Unduavi gracile opossum (Cryptonanus unduaviensis) is a Bolivian didelphid named by Tate in 1931 and known from flooded grasslands.
Alston's mouse opossum (Marmosa alstoni) is a nocturnal arboreal didelphid from Belize to northern Colombia, named by J. A. Allen in 1900.
The Guahiba gracile opossum (Cryptonanus guahybae) is a small didelphid endemic to southern Brazil, known from three Rio Grande do Sul islands.
The Brazilian gracile opossum (Gracilinanus microtarsus) is a small arboreal didelphid of Brazil's Atlantic Forest, named by Wagner in 1842.
The Aceramarca gracile opossum (Gracilinanus aceramarcae) is a pouchless didelphid of Bolivia and Peru, recorded from tropical elfin forests.
Emilia's gracile opossum (Gracilinanus emiliae) is an Amazonian didelphid named by Oldfield Thomas in 1909 and found in northern South America.
