Shell thin, brilliantly nacreous, inflated, depressed-conical, five-whorled ; spire obtuse ; nucleus polished, smooth, very minute ; remainder of shell sculptured with fine revolving lines, subequal, about as wide as the interspaces, about eighteen at the beginning of the last whorl ; these are crossed by slight plications, beginning near the suture, becoming nodulous on a single prominent thread a little way from the suture (which is thus made to appear somewhat channelled), becoming faint about the middle of the upper side of the whorl, and entirely disappearing before reaching the periphery; the revolving lines are fainter on the rounded base ; the umbilicus is wide and funnel-shaped, bordered by a strong keel with about twenty-five rounded nodules, the inner walls of the umbilicus with strong revolving lines delicately reticulated by the lines of growth. The whorls are rounded, with no carina at the periphery; the pillar thin, arched, not reflected ; the aperture nearly round, but angulated above by the sutural thread, and below by the umbilical keel; edges simple, not thickened ; operculum thin, corneous, multispiral ; shell nacreous, with delicate suffused splashes of brown. Alt. 5.0, Major diameter 5.5. ; Diam. of aperture, 2.0 ; of umbilicus, 2,75 mm.

USA. Florida. Sand Key.