The body whorl is oval and broadly truncated, comprising about three-fifths of the total shell length.

The shell features a lunate aperture and a columella that is reflexively covered with a wide, glass-like plate.

The base is traversed by sharp transverse ridges, passing over the columella into the aperture.

The broad and short tentacles, the position of the eyes, and the long, obtuse foot of the animal, are quite peculiar.

[2] This marine species occurs in the Kagoshima Bay, Japan as well as off the coast of the Philippines.