The upper ones are longitudinally folded, and slightly striated transversely ; the two lower ones smooth, convex and strongly canaliculated.

The body whorl is furrowed at the base, and frequently ornamented about the middle with two bands of a chestnut color.

The outer lip is thick, denticulated upon the edge of the lower part and striated within.

The left lip gives rise to a thin and elevated callosity upon the edge of the columella, and towards the top a very prominent transverse fold, forming the commencement of a canal.

[2] This species occurs in the Red Sea and in the Indian Ocean off the Mascarene Basin; off Japan.