The Mexican long-tailed shrew is a small species from highlands of central and southern Mexico. Its account gives no information on diet or activity.
Its back is dark brown and its underside grayish brown. The tail is about 60–70% of head-and-body length and slightly two-toned.
It is recorded in montane pine-oak-fir forest and tussock grassland at about 2,500 m. Its account gives no diet or activity information.
An extinction-risk assessment has not been added yet.