It is tubercled, thin, polished, flinty white, with an elongated conical base, longish columella, and a blunt apex.

The protoconch consists of nearly 2 embryonic whorls, which are cylindrical, quite smooth, and end in a perfectly rounded tip, which is slightly immersed, and scarcely, if at all, oblique.

The last is small, rapidly contracted on the conical base, and running out into a somewhat one-sided, and slightly twisted, narrow, longish snout.

The suture is a little oblique, linear and a little disturbed by the longitudinal rib ; well defined by the superior and inferior slope of the whorls.

The sinus is rounded, rather shallow and open, but large, from the very considerable forward sweep of the pinion-like edge of the lip as it approaches the siphonal canal, from which it retreats toward the point of the shell.