Shell slender, acute, of six whorls, with a minute, smooth, white nucleus and solid texture. Color whitish with traces of a nut-brown epidermis. Sculpture of strong revolving ribs, of which the posterior three are crossed by rather strong transverse riblets which rise into beaded nodules on the intersections. The whorls are turrited by the prominence of the posterior revolving rib, between which and the suture the transverse riblets are oblique and rather strong. Three of the revolving ridges are apparent on the upper whorls and seven on the last whorl. Aperture about two-fifths the whole length, white, with a pink throat, and the outward lip somewhat thickened and internally grooved, corresponding with the external ridges, which are also apparent on the inner lip. Canal short, straight, shallow and rather narrow. Two or three plica; on the columella. Animal whitish with no operculum. Long., 0.75 inch; lat. 0.3 inch; defl. 35°.

30 to 60 fathoms stony mud in Captain's Harbor, Unalashka, Aleutian Islands;