Species of gastropod
Clanculus atricatena, common name the black-chained topshell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]
Description
The size of an adult shell varies between 15 mm and 20 mm. The umbilical shell has a broadly conical shape. The body whorl is rounded at its periphery. The umbilicus is wide and is bordered by a callus ridge with small nodules.
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Distribution
This marine species is found off the coast of Transkei, South Africa.
References
- Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 40
- Herbert G.G. (1993). Revision of the Trochinae, tribe Trochini (Gastropoda: Trochidae) of southern Africa. Annals of the Natal Museum 34(2):239–308
- Branch, G.M. et al. (2002). Two Oceans. 5th impression. David Philip, Cate Town & Johannesburg
External links