Clanculus puniceus

Lore & Background

The shell of Clanculus puniceus is wide-conical, low-spired, and has a granulated coral red surface with a pattern of small black and white dots. The body whorl bears 20 or 21 cinguli, of which the 4th and 9th, as well as one or two upon the base, are articulated with black. The aperture is oval with a strongly ridged lip, and the interior of the shell is pearly (nacreous).

This species differs from Clanculus pharaonius in being more finely granulate, and its body whorl is more deflected anteriorly than in that species. The shell is robust and small, with adult sizes ranging from 13 mm to 22 mm.

The species occurs in the Indian Ocean off Madagascar, the Mascarene Basin, Mozambique, KwaZulu-Natal (South Africa), and Tanzania. It lives on rock in the eulittoral zone.

Reader's Guide

Clanculus puniceus is significant as a representative of the Trochidae family in the Indian Ocean region, particularly in the waters off Madagascar, the Mascarene Basin, Mozambique, KwaZulu-Natal, and Tanzania. Its shell, reminiscent of a small strawberry, makes it easily identifiable among top shells. The species is distinguished from the similar Clanculus pharaonius by its finer granulation and more deflected anterior body whorl. The shell's interior nacre and the articulated black markings on specific cinguli provide diagnostic features for malacologists. The species' habitat on rock in the eulittoral zone places it within the intertidal environment, where it contributes to the biodiversity of marine gastropods. Its description in the revision of Trochinae by Herbert G.G. (1993) and inclusion in Branch et al.'s 'Two Oceans' (2002) underscore its recognized place in southern African marine fauna.

Did You Know?

• The shell of Clanculus puniceus resembles a small strawberry in shape, size, color, and sculpture.
• Adult shells vary in size between 13 mm and 22 mm.
• The body whorl bears 20 or 21 cinguli, with the 4th and 9th articulated with black.