This mouse opossum is recorded in a habitat mosaic in northeastern Argentina. Its taxonomy has been debated.
The fine coat is cinnamon-tinged, with a cream-white underside. The long tail is bicolored, with about its terminal quarter white.
It is recorded in a mosaic of grass savanna, open grassland, wetlands, gallery forest, xeric woodland, and palm savanna.
An extinction-risk assessment has not been added yet.