This Mexican endemic shrew is recorded in high mountain valleys, along boreal pine forest, and in rocky talus above the tree line. Its grizzled back has pale bands and dark brown tips.
The dorsal hairs have a white band through the middle and long dark brown tips, giving the back a grizzled look. Ventral hairs are dark gray near the skin and white at the tips; the tail is two-colored.
It is recorded at high elevations in mountain valleys beside boreal pine forest with muhly bunchgrass, and on talus slopes above the tree line. Other records come from tall sacaton grass in pine forest near running water.
An extinction-risk assessment has not been added yet.