Shell elongate-conic, bluish white. Nuclear whorls decollated, the last turn only remaining, which is smooth. Postnuclear whorls moderately rounded, marked by three spiral cords, of which the first is a little anterior to the summit, while the third is as far above the suture as it is separated from the median. The median occupies a position half way between the other two. In addition to these spiral cords, the whorls are marked by slightly protractive, moderately strong, rounded axial ribs, of which 18 occur upon all but the last two whorls, which have 20. The junction of the axial ribs and the spiral cords form rounded nodules, which have the long axis parallel to the spiral sculpture. These nodules are well rounded on the posterior cord, while on the median cord they are truncated anteriorly and posteriorly, a little more abruptly anteriorly than posteriorly. On the third cord they are truncated posteriorly and sloped gently anteriorly. The spaces inclosed between the cords form shallow, rectangular pits. The summit of the whorls falls a. little anterior to the peripheral cord and allows this to be apparent in all the sutures. Periphery of the last whorl marked by a strong cord, which is separated from the first supra-peripheral cord by a sulcus as wide as that which separates those from the median cord. This sulcus, like the other, is crossed by continuations of the axial ribs, which terminate at the posterior edge of the peripheral cord. Base concave, marked by a slender, spiral cord immediately adjacent to the peripheral cord. In addition to the above sculpture the entire surface of the shell is marked by fine lines of growth and microscopic spiral striations. Aperture channeled anteriorly; outer lip thin, showing the external sculpture within and rendered sinuous by the external sculpture at the edge; columella stout, curved, covered by a thin callus, which extends over the parietal wall.
Cat. No. 249678, U.S.N.M., contains two adolescent shells of this species, one of which is the type. They are from Port Alfred (Coll. No. 950). The typo has lost the early nuclear whorls, the last one only remaining. In addition to that it has a little more than 10 post-nuclear whorls, and measures: Length, 9.5 mm.; diameter, 3.1 mm.