Shell heavy, conical. Spire concave and elevated only at center. Sides of body whorl smooth. Aperture narrow. Color cream to white with rows of irregular orange, light-, or dark-brown spots. This species has been subdivided into forms that most likely reflect local variations without taxonomic value. The egg cases shown (collected and photographed by Amy Tripp on Kice Island) measure about 20 mm, and, according to D'Asaro (1970), each one may include from 56 to 67 embryos (baby snails).