This mouse is recorded in the southwestern Ecuadorian Andes. Its tawny-olive back and ochre patch behind the ear are noted in the species account.
The back is tawny olive with some blackish hairs. The underside is pale with a yellowish wash, and an ochre patch lies behind the ear.
It is recorded in montane forest and Polylepis woodland within páramo. One collection record was from lower Polylepis branches.
An extinction-risk assessment has not been added yet.