Shells medium-sized to large, operculate, bucciniform. Whorls very convex, aperture semi-circular, columella straight, anterior siphonal canal open, posterior notch very visible, often narrow, delimited by a sloping columellar tooth. Sculpture made up of strong axial varices and spiral cords. Periostracum marked, sometimes velvety, sometimes hairy. Operculum heavy.
 

Shell large, lightweight to heavy, fusiform, with varices in opposition; outer lip thickened, inside denticulate, as well as the first part of the siphonal canal.