This mouse is known from the high western Andes of Peru’s Ancash Department. Its back is rich cinnamon-brown, with a buffy-ochre underside.
Its back is rich cinnamon-brown mixed with dusky hairs, and its underside is buffy ochre. The tail is dusky above and buffy-white below.
It is reported from brushy habitat on the western Andean slopes. The volume provides no other information on its behavior or reproduction.
An extinction-risk assessment has not been added yet.