Kingdom Animalia Infraclass Marsupialia Family Didelphidae Scientific name Metachirus nudicaudatus Rank Species | Phylum Chordata Order Didelphimorphia Subfamily Didelphinae Higher classification Metachirus | |
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Similar Opossum, Gray and black four‑eyed, Woolly opossum, Mammal, Gray four‑eyed opossum | ||
The brown four-eyed opossum (Metachirus nudicaudatus) is a pouchless marsupial of the family Didelphidae. It is found in different forested habitats of Central and South America, from Nicaragua and to Paraguay and northern Argentina, at elevations from sea level to 1500 m. It is the only recognized species in the genus Metachirus, but molecular phylogenetics studies suggest that it should probably be split into several species. Population densities are usually low, and it is uncommon in parts of Central America. A density of 25.6/km2 was reported near Manaus, Brazil. Its karyotype has 2n = 14 and FN = 24.
It is a nocturnal, solitary, strongly terrestrial and omnivorous animal, feeding on fruits, small vertebrates and invertebrates.
The brown four-eyed opossum builds nests made of leaves and twigs in tree branches or under rocks and logs. It is seasonally polyestrous and the litter size varies from one to nine.
The white spot over each eye inspired the common name of "four-eyed opossum". Its scaly tail is longer than its body.