Shell of medium size, smaller than in other two species, up to 45 mm in height, slender with a raised spire. Aperture narrow, columella simple without significant parietal callus, fasciole long and narrow. Sculptured with about thirteen axial ribs pointed at the shoulder. Colour white, ribs crossed by pairs of dark brown lines enclosing yellow-brown, the interstices between ribs dull brown, columella fawn anteriorly, with a brown spot near the anterior end and with a brownish blotch in the middle.