« Shell oval, rather solid, opaque and lustreless. Sculpture: 16-18 strong longitudinal ribs on the last whorl, 14-16 on the penultimate, 10-12 on the next, and merely traces or none at all on the second whorl, the top whorl or apex being smooth ; these ribs are crossed by equally strong spiral ribs or ridges, of which there are 6-8 on the last whorl, 4 on the penultimate, and 3 on the next whorl, the succeeding or second whorl being marked with a few spiral striae ; the points of intersection are noduled or prickly, but only as to the four upper spiral ridges on the last whorl in consequence of the longitudinal ribs not extending to the lower or basal spiral ridges ; the interstices are oblong. Colour pale yellowish or dirty white. Spire somewhat tapering. Whorls 5, moderately convex, rapidly increasing in size, the last occupying half the spire ; the apex is prominent but twisted. Suture deep and angulated. Mouth nearly round. Outer lip thin, smooth inside. Inner lip reflected on the pillar, which is not umbilicated nor perforated. » — Jeffreys mentions depths of 30-120 fms.