These are slightly angular at their upper part, loaded with very convex longitudinal folds near the suture.

The upper extremity of the fold is sometimes separated by a stria which divides them superficially.

The outer lip is thin, slightly denticulated at the base, furnished with numerous striae; internally.

The columella is arcuated, covered by the inner lip, which conceals, by its expansion, a part of the body of the shell, and forms a large, white, and polished callosity.

[2] This species occurs in the Central and East Indian Ocean off Mauritius, Madagascar and Tanzania ; off East India, Sri Lanka, Thailand, the Philippines, China, and in the Western Pacific Ocean off Papua New Guinea, New Caledonia, the New Hebrides, the Solomon Islands and Australia (Queensland).