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| shelled snails text index | photo index |
| Phylum Mollusca > Class Gastropoda > Family Littorinidae |
| Ridged
periwinkle snail Littoraria carinifera Family Littorinidae updated Oct 10 Where seen? Sometimes seen on seawalls as well as in mangroves. Features: About 2cm. Shell rather squat, with obvious ridges. "Carinifera" means "bearing ridges". Operculum brown. |
 Changi, Jun 08 |
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Ridged periwinkle snails on Singapore shores
 Pulau Semakau, May 07 |
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