This shrew occurs on Honshu, Shikoku, Kyushu, and nearby Japanese islands. Its coat varies by season and region, and it has been recorded along riverbanks and in farm-field thickets.
NIES describes winter coats as grayish brown to brown and summer coats as yellowish brown. Sparse hairs occur near the base of the tail.
It is recorded along riverbanks and in farm-field thickets. Its diet includes insects, small crustaceans, snails, and earthworms.
An extinction-risk assessment has not been added yet.