Shell pagodiform, thin, tall and narrow. The last whorl has a median cylindrical area, angled above and below. The keel along the lower angle is buried by the suture of the following whorl; that along the upper angle projects more and ascends the spire to the protoconch, where it suddenly ceases. Above the upper keel the whorl slopes to the suture, below the lower the base is concavely excavated. Colour pale yellow. Whorls four, plus the protoconch, wound obliquely. Sculpture: the topmost whorl is undulated by about sixteen broad radial ribs, which disappear on the next whorl. Fine and coarse spiral threads alternate over the whole surface, and are crossed by fine growth lines. Protoconch exsert, white, smooth, two-whorled. Aperture broad, lip simple, no apparent sinus, canal short, open, straight. Length, 6 mm.; breadth, 2.5 mm.

Pleurotoma ( Surcula) staminea Watson appears a near ally of this species.

Australia. Off the coast of New South Wales.