The Jaliscan Cotton Rat occurs in western Mexico. It has coarse brown fur above and a pale underside, and it is commonly associated with grasslands and farmland.
Its back is covered in coarse brown fur, while the underside is whitish.
It is associated with grasslands and croplands and is reported more often in grassy areas than in natural forest. Breeding has been recorded year-round.
It is active by day and night, especially at dawn and dusk.
The tail is shorter than the combined head and body, dark above and pale below.
An extinction-risk assessment has not been added yet.