The sepia short-tailed opossum (''Monodelphis adusta'') is a species of

opossum Opossums () are members of the marsupial order Didelphimorphia () endemic to the Americas. The largest order of marsupials in the Western Hemisphere, it comprises 93 species in 18 genera. Opossums originated in South America and entered North ...

in the family Didelphidae found in Colombia,

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Ekua ...

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and

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. Its habitat consists of different types of forests up to 2200 meters above sea level, as well as grasslands. These areas have about 5 m annual rainfall, so they find ways to remain above the water. The opossum hunts invertebrates on the ground, but remains of beetles and small frogs have also been seen. They are nocturnal and live in tree holes.Gardner, Alfred L. "Order Didelphimorphia: Family Didelphidae." Mammals of South America. Vol. 1. Chicago: University of Chicago, 2007. 85-86. The species has dark brown fur and is distinct from other members of its genus by having no streaks on its trunk.

References

Opossums Mammals of Colombia Mammals described in 1897 Taxa named by Oldfield Thomas Taxonomy articles created by Polbot {{marsupial-stub