 The nucleus is rather smooth, next whorls contain from 2 to 4 weak spiral lirae below the suture, crossed by weaker radiating ribs, and with 2 or 3 stronger lirae on the lower part of each whorl, with a faint intermediate one, on the penultimate and the body whorl.The spiral lirae increase in number, to about 10 weaker spirals on the upper part and 4 or 5 stronger ones at the lower part of the upper surface, and numerous intermediate ones.Below the rounded periphery appear two or three more remote lirae, with intermediate ones and numerous, regular, flatter lirae on the convex basal part, becoming broader towards the umbilicus.