Depressed conoidal with rounded periphery and profoundly umbilicate axis, very strong and solid, densely granulate, coral red; spire conoidal, its outlines scarcely convex ; whorls about 6, somewhat convex, separated by well impressed sutures, the last large, deflected anteriorly, bearing 18 or 19 crowded, closely granose cinguli, of which the 1st, 3d, 5th, 7th, 9th and two upon the base are composed of alternate black and white granules; upon the base the granulation is finer; the base is convex, a trifle indented toward the center; aperture oblique, subtetragonal, peristome with a marginal row of black and white dots; outer lip plicate within, with a short pliciform tubercle above: basal lip, outer margin of the umbilicus and parietal wall provided with wrinkle-like plicae; columella very oblique, terminating below in a square prominence, contorted above, and inserted on the side of the umbilicus; umbilicus white, and within the strongly radiately plicate marginal rib, smooth. Alt. 18, diam 23 ; alt. 16, diam. 18 mm. Red Sea.

Red sea, Arabian sea, Gulf of Oman,...