This rodent is known from salt-flat habitat in La Rioja Province, Argentina. The original type locality is at 581 m, among salt-tolerant shrubs.
Its underside is white, and the hairy tail ends in a black tuft.
Burrows were recorded in a narrow band of salt-tolerant plants between bare salt flat and dense thorn scrub. Heterostachys shrubs were abundant immediately around the burrows.
An extinction-risk assessment has not been added yet.