This mouse has a brown back and a long-haired tail. It occurs in forests from southeastern Mexico through Guatemala to extreme northwestern El Salvador and is nocturnal and arboreal or semi-arboreal.
The back is brown, tan, or fulvous, while the underside is white. The tail is dark to its tip and covered with hair.
It is recorded in cloud forests and humid, cool oak and conifer forests with epiphytes, ferns, and mosses at 1,950–3,100 m. It is nocturnal and arboreal or semi-arboreal.
An extinction-risk assessment has not been added yet.