Gibbula cicer
| Gibbula cicer | |
|---|---|
 | |
| Gibbula cicer | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Clade: | Vetigastropoda |
| Superfamily: | Trochoidea (superfamily) |
| Family: | Trochidae |
| Genus: | Gibbula |
| Species: | G. cicer |
| Binomial name | |
| Gibbula cicer (Menke, 1844) | |
| Synonyms[1] | |
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Gibbula cicer 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 5 mm and 8 mm. The solid, globose-conical shell is perforate or subperforate. It is longitudinally crossed by reddish or dark brown stripes, often broken into tessellations on the base. There are five, convex whorls. The first two are yellow or rosy and smooth. The rest are coarsely spirally lirate with 6 or 7 lirae on the penultimate whorl. The lirae are separated by deep interstices which sometimes intersect the colored stripes. The spire is short. The body whorl is rounded. The base of the shell is convex and finely marked with about eight narrow lirae with its base frequently suffused with pink. The arcuate columella is straightened in the middle and oblique and very subdentate below. The white or yellowish umbilical area is small. [2]
Distribution
This marine species occurs off Namibia and North Transkei (South Africa)
References
- ↑ 1.0 1.1 Gibbula cicer (Menke, 1844). Retrieved through: World Register of Marine Species on 10 July 2012.
- ↑ George Washington Tryon, Structural and systematic conchology: an introduction to the study of the Mollusca, p. 219; 1882
- Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 40
- Trew, A., 1984. The Melvill-Tomlin Collection. Part 30. Trochacea. Handlists of the Molluscan Collections in the Department of Zoology, National Museum of Wales.
- Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 18
- Branch, G.M. et al. (2002). Two Oceans. 5th impression. David Philip, Cate Town & Johannesburg