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DescriptionAn elongate, conical shell, up to 1 cm long, with 10-15 whorls. Strong ribs and spiral ridges interact to form rows of moderately prominent round elevations (tubercles), 4 on lower whorls, 3 on upper whorls. Whorls are a little swollen and sutures are rather deep. Aperture flared or oval and drawn out to form a short basal sinus. Oval operculum present. Shell reddish-brown to light chestnut-brown in colour, tubercles paler.