Shell small, strong, ovate. Colour white. Whorls four; exclusive of the smooth, prostrate, heterostrophic two-whorled apex. Sculpture: sixteen strong, smooth, outstanding, longitudinal ribs sinuate the suture and reach to the extreme point of the base. Similar ribs extend continuously across the upper whorls. Between these ribs appear the broken lengths of about a dozen, delicate, widely parted, raised, spiral threads. Aperture ear-shaped, effuse anteriorly. Columella massive, entering in a strong, spiral twist. Lip formed by the last rib. Length 1,2 mm.; breadth 0,65 mm.