Shell small, depressed orbicular, shining, hyaline, white, spire but little elevated; whorls 4, convex, regularly and rapidly increasing, last one large, rounded, girdled with 9-11 ridges, which are most crowded beneath and remote above; suture linear; umbilicus large, deep, perspective, freely showing the whorls, spirally ridged a little more than a third the greatest diameter of the shell; aperture circular, diagonal; peristome nearly continuous.
Diam. Greatest 1,5 mm , height 0,66 mill.