The shell is moderately large, with a rather high spire, strong, yellowish-gray, and consisting of 8 whorls. The protoconch is missing. Whorls are moderately convex, slightly angled at the shoulder, with indistinct subsutural fold and moderately wide (about 1/3 of the whorl height), concave subsutural slope. Sutures are wavy, and slightly channelled. Axial folds (12 on the body whorl and 11 on the penultimate one) are narrow, slightly oblique, with sharpened crests, and long (they reach the lower suture and extend over the entire shell base). The folds begin in the lower part of the subsutural slope and are most prominent in the whorl periphery. Spiral ribs are strong, cord-like, narrow, widely spaced (but become progressively closer to each other and lower on the shell base and canal); they override the axial folds and form nodules at intersections. Interspaces between ribs are very finely spirally striate and sometimes bear a thin thread. The number of ribs increases from 3 to 5 in successive spire whorls. The subsutural fold is sculptured by two thin spiral riblets. Subsutural slope is smooth except for very fine spiral striations and 3-4 thin threads in the lower half. Growth lines are numerous, thin, and clear, on the body whorl some of them are rough and raised. The shell base is almost flat and not differentiated from the canal. The aperture seems to be rather wide (the outer lip is broken). The inner lip is weakly and evenly curved, and covered by thick callus. The parietal callus pad is very weak. The anal sinus (judging from its scars) is moderately deep, openly U-shaped (type (c) of Kilburn, 1988). The canal is broad and widely open. H = 39.5, Hb = 21.4, Ha = 16.5, D = 10.8 mm.

Gulf of Aden