The Unduavi gracile opossum (''Cryptonanus unduaviensis'') 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 Nort ...

in the family Didelphidae. It is native to northern

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

, where it has been found in seasonally flooded grassland. Some of the specimens recognized by Voss ''et al.'' as belonging to this species were previously classified as the ''unduaviensis'' or ''buenavistae'' subspecies of ''

Gracilinanus agilis The agile gracile opossum (''Gracilinanus agilis''), is an opossum species from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Peru, Paraguay, and Uruguay. It is nocturnal, arboreal and frequents the forest understory, whe ...

References

* Opossums Endemic fauna of Bolivia Marsupials of South America Mammals of Bolivia Mammals described in 1931 {{marsupial-stub