Shell umbilicate, ovate-conic, thin (often fragile), white or corneous-white, opaque or somewhat transparent, with (typically) four spiral hands of squarish brown spots, the upper band narrow, often wanting; the spots frequently irregular, oblong, or coalescent vertically or horizontally, or even wholly wanting. Surface smooth, glossy or corroded, with delicate spiral striae when not effaced. Spire decidedly conic; apex obtuse. Whorls 5,5 to 6, the last convex. Aperture oblique, ovate, showing the external markings within; peristome simple or a trifle expanded, the columellar margin dilated, reflexed. Alt. 29, diam. 16, length of aperture 15 mill., often smaller.