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Gray (1834) description in latin. Shell umbilicated, orbicularly subconoid, epidermis light yellow or brownish on upper surface, with a black or chestnut-colored revolving band visible on the four outer whorls, the lower surface dark chestnut, sometimes uniformly black; suture distinct, impressed; whorls 7, rounded, spirally striate, with minute, delicate, impressed lines, the striae of increase...