Description (Gittenberger et al, 2000):
Shell: Very fragile, elongate-conical, creamy white; reaching 16 mm in length. Length/width 2.3-2.6-3.6. Protoconch whorls 3. Maximum protoconch 1 diameter 0.13 mm (n=2). Protoconch with numerous, very fine, incised, axial lines. Teleoconch whorls up to 12, separated by moderately deep suture. Teleoconch sculpture varying in intensity from well-defined to obsolete. Costae unevenly spaced, orthocline, more or less lamellate or obsolete, not continuous, relatively prominent adapically and clearly encroaching on adjacent whorl, curved in adapertural direction. Spiral threads vary in strength on a single whorl; spiral threads only slightly increasing in number on later whorls. Fifth teleoconch whorl with 15-23-28 costae and 9-11-15 spiral threads. Aperture circular to somewhat oval. Apertural length/shell length 0.20-0.26-0.29. Umbilicus very narrow to closed. Proboscis whitish, with some transversal, transparent bands. Egg-capsules roundish to oval, white, granulated, sometimes embedded with sand, closely connected along a twisted mucous thread. One egg-capsule contains 67-225-405 eggs.