The pallid fat-tailed opossum is a small marsupial of dry habitats and high-elevation grasslands. It stores fat near the base of its tail and is mainly terrestrial, though it can climb shrubs and small trees.
Its coat is tricolored: gray-brown above, paler on the sides, and white underneath. The tail thickens seasonally as fat is stored, mainly near its base.
It is nocturnal and builds nests of grass, hair, feathers, and leaves among rocks, in trees, or beneath shrubs. It forages mostly on the ground but can climb shrubs and small trees.
An extinction-risk assessment has not been added yet.