(Original description) The long, narrow shell has a , biconically fusiform shape, sharply carinated and tubercled on the keel, polished, thin, white.

The body whorl is a little tumid, with a very regular convex curve, which contracts evenly to a long, projecting, narrow, cylindrical snout, lying very nearly in the axis of the shell.

The aperture is club-shaped, but long and narrow, sharply pointed above, and very much twisted in consequence of the great depth and width of the sinus.

Its edge, which is sharp throughout, retreats at once, forming a very narrow and short ledge between the body whorl and the sinus, which is rounded and open, and whose depth is due entirely to the great forward sweep of the lip below, where it projects like the pinion of a wing and is slightly patulous.

It curves in laterally to the origin of the siphonal canal, and then advances very straight and scarcely patulous to the rounded point of the shell.