The body length reaches 66 mm (2.6 in), with an average of 57 mm (2.2 in). The tail is about 79% of the body length and can be 54 mm (2.1 in) long. The average weight of an adult is 5 g (0.18 oz). The back is ashy-gray, sides are lighter, with brown tones. The belly is light gray. This species is characterized by the highly elongated rear feet with well-defined bristle brush hair.
Kamchatka shrew inhabits riparian scrubs in North-Eastern Siberia, in the upper reaches of the river Omolon (its tributary Kegan), and in Kamchatka (Kambalny Bay, Lake Azhabachye, neighborhood of Milkovo).
