18mm. High spired, slender, glossy, with small, pointed protoconch of about 4 whorls. Spire whorls have widely spaced, thin, slightly recurved and poorly developed ribs (about 10 on last whorl); each rib enlarges at its top and joins rib of previous whorl at suture. Smooth between ribs. No umbilicus. Pale brown with white ribs. Habitat: deep water. Distribution: Gulf of Oman, Iran, Northern Persian Gulf.