This rock-adapted rodent is restricted to southern San Juan Province, Argentina. It is recorded in shrub and cactus vegetation at the piedmont of the Monte Desert.
The dorsum is grayish drab and slightly darker along the midline. The underside is paler, and the underside of the tail is white.
It lives among rocks; padded feet and shortened claws are described as adaptations for movement on rock surfaces. Groups of three to four were recorded in a small sample of three groups.
An extinction-risk assessment has not been added yet.