This small mouse is recorded from the upper Yungas of northwestern Argentina. Its dark gray back is speckled with ochre, and the sides and underside are ochre-gray. The species description calls it a rare forest specialist; most specimens in the study were captured at night.
The dorsum is dark gray with ochre speckling; the sides and underside are ochre-gray. The forefoot digits are white, and the sparsely haired tail is slightly darker above than below.
The species description identifies it as a rare forest specialist in the upper Yungas and reports that nearly all captured specimens were taken at night.
An extinction-risk assessment has not been added yet.