Shell small, subulate, moderately solid, spirally lirate, white. Sculpture : The first 1,5 whorls are smooth, the next has 3, the following 4, the fourth 5, and all the succeeding whorls 6 sub equidistant prominent flatly rounded spiral cords, the suprasutural cord being less distinct ; on the last whorl each of the furrows between the cords is provided with a line thread, and the carina bounding the base bears the suprasutural cord ; base with 6 fine cinguli. Colour dirty-white. Spire high, narrowly conical ; outlines lightly convex. Protoconch globose, smooth and polished. Whorls 8, regularly increasing, convex ; base nearly flat. Suture impressed. Aperture vertical, oval, higher than broad. Outer lip sharp, -with a broadly rounded not very deep sinus. Basal lip effuse. Columella vertical, almost straight. Inner lip slightly reflexed, spreading over the parietal wall as a thin white and shining callus. Operculum unknown.
Diameter, 3,7 mm. ; height, 10,8 mm. (shell of 8 whorls).
Animal unknown.
Type in my collection.
Hab.—Dredged off Otago Heads (A. Hamilton).
Remarks.—The only specimen I possess has the outer lip damaged. The shell is, no doubt, riot quite full grown. There is a very nearly allied form, still undescribed, from the Pliocene of Waikopiri, in my collection.