(Original description) The small, solid, chalky shell has an olivaceous periostracum.

In front of the first band is a depression with two or three incised spiral lines, followed by a strong nodulous keel corresponding to the anal fasciole, in front of which again are (on the spire one, on the last whorl four) strong, simple, distant, spiral threads, of which the second is strongest and followed by the widest interval.

The series is preceded by eight or ten smaller, closer, simple, spiral threads which extend to the end of the siphonal canal.

The outer lip is sharp, with a well marked sulcus at the principal keel.

[2] This marine species occurs in the Gulf of Panama and off the Galapagos Islands.