The Amazonian red-sided opossum is a small marsupial with reddish-orange flanks that lives mainly on the ground. It occurs in Amazonian forests.
It has brown fur over the back and reddish-orange fur on the flanks. The account also describes regional variation in coat color.
It is terrestrial and also shows some semifossorial behavior. It is an omnivore that often eats insects, as well as seeds and other plant matter.
An extinction-risk assessment has not been added yet.