A thick, heavy shell with a low spire, and a large aperture ending with a small, ipturned siphonal canal. It is ornamented with three or four rows of blunt knobs, decreasing in size towards the anterior end, with smaller tubercles and pitted grooves between the rows. Above the siphonal canal  distinct, widely spaced vertical riblets are bisected by a single, equally distinct spiral riblet. There are about 22-24 teeth along the outer lip. Body whorl and spire mottled with shades of red and brown; vertical riblets and spiral riblet whitish. Columellar folds white, dark brown between.