This Mexican shrew is known from high elevations in Guerrero and Oaxaca. Its back hairs are reddish blond with dark brown tips, while the underside is light reddish brown. Published records place it in high-elevation pine-fir or pine-oak forest with deep humus and leaf litter.
The back hairs are reddish blond centrally with dark brown tips; the underside is light reddish brown. The tail is described as uniform with the back. A long pigmented strip on a lower incisor is also used to distinguish the species.
Records from Guerrero and Oaxaca range from about 1,920 m to at least 3,000 m. The cited habitat descriptions include pine-fir or pine-oak forest with deep humus covered by leaves. The paper found no published reproductive information.
An extinction-risk assessment has not been added yet.