Gibbula zonata

The rather solid shell is imperforate but excavated at the place of the umbilicus.

It is whitish, with numerous spiral bauds and lines of purplish-brown.

The surface is very lightly obliquely striate, closely, densely finely spirally striate, generally with three strong carinae, one at periphery, the others above.

It is nacreous inside with slight sulci at the positions of the external carina.

[2] This species occurs in the Atlantic Ocean off Namibia and the western coast of South Africa; in the Indian Ocean off the Agulhas Bank.