The Intelligent Grass Mouse is a small rodent of Argentina’s dry regions. It is recorded in the Monte Desert and Andean foothill steppe, though detailed natural-history information is limited.
The back is olive-brown to brown and the underside is gray. Reported head-and-body length is about 8–11 cm, with a 5–8 cm tail.
It is frequently recorded in the Monte Desert at elevations from near sea level to roughly 900 m, with the account also mentioning sites around 1,000 m. It is preyed on by owls.
An extinction-risk assessment has not been added yet.