Shell of medium size, up to 46 mm in height, ovately conical, spire short and depressed, apex sharp. Aperture narrow, columella polished and with white callus, faintly wrinkled below, outer lip thickened, its sharp edge ends posteriorly on keel of penultimate whorl, posterior canal arching on to spire, siphonal canal short, stromboid notch shallow. Spire whorls sculptured with varices or axial ribs and sharply angular shoulder, last two whorls without any ribs but only a nodulose keel on the shoulder, body whorl with deeply incised sharp lines at its base. Colour white, maculated with dark or light brown, four white broken spiral bands on body whorl, also white, inside of outer lip lirate, white, aperture interior also white.