Head and body are 16.5–20 cm. Tail length is 18–21.5 cm. The tail is haired and has a distinct tuft at the end. These nocturnal animals are found in habitats ranging from coastal areas, swamps, plains, and forests. They have been reported along the edge of oceanic surf, presumably feeding.
Young have been found to cling to one of the mother's four nipples while she forages. Gestation is 33–35 days.
