Solid, thick, almost elliptical shell with a high pointed spire, short blunt spines on the shoulder and with a prong-like posterior expansion on the flared outer lip. Body whorl rough and dull, with many well-marked and unequal spiral ridges all over, 2 or 3 of them somewhat knobby. Ventral side of the shell extensively glazed. Aperture slightly lirate inside, at the anterior and posterior ends of the outer lip. Outer lip margin thickened, smoothish externally, with a deep anterior notch, a finger-like projection extending posteriorly about halfway as far as the apex of the spire. Inner lip smooth, with a moderately thin callus spreading ventrally over most of the body whorl and part of the spire. Siphonal canal strongly recurved dorsally. Columella pustulate at the top, otherwise smooth and calloused; wide parietal wall, callus almost extending to the apex. Colour: outside dull cream or light grey, scattered with irregular dark brown to greyish spots or lines.