The Guyanan short-tailed opossum has gray or black fur on its back and reddish fur along its sides and legs. It is active by day, mainly on the ground, and eats insects and spiders.
Its back is gray or black, while reddish fur runs along the sides and onto the legs. The feet and short, furred tail are black.
It is solitary, mainly terrestrial, and active by day. Its reported foods include insects and spiders, with fruit and seeds eaten occasionally.
An extinction-risk assessment has not been added yet.