The shell is small (length 6.0 mm) and roughly biconic. The spire is moderately high and acute, consisting of about one and three-fourths nuclear whorls and four flat-sided postnuclear whorls. The body whorl is roughly fusoid and quadrangular, as seen apically. The suture is strongly impressed. The aperture is ovate and erect on its left side; on its right side the varix closely approaches the margin. The anal siphonal tidies are short, situated very near the preceding varix, and bent dorsally and posteriorly. The siphonal canal is short, broad, and closed, with the closure seam strongly bent to the left in an are from the base of the aperture; the distal end of the canal is open and dorsally bent.
Axial sculpture is limited to the four varices. No varical costae arc present; the intervarical areas are entirely smooth and flat. Each varical margin is composed of two elements; the leading element is weakly defined, appressed to one side of the tube, and turned inward below, disappearing at the base of the body beneath the preceding, stronger varix; the other element is stronger, somewhat raised above the shell, its edge curved forward in areas, and at its shoulder, where it becomes folded, it forms an incipient, broadly open spine. The tubes, arising from the shoulder margin, are low; they project at 45° to the long axis of the shell and are bent slightly dorsally. The apertural varix exhibits a single incipient spine, and the remainder of the varix forms a short flange, tangential to the shell, this bearing five projecting, scalloplike folds, each made up of several fimbriate lavers.
Shell color is white, but no live-collected specimens have been seen by us.

Southeastern Japan (Kii, Tosa Bay region).