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| shelled snails text index | photo index |
| Phylum Mollusca > Class Gastropoda > Family Littorinidae |
| Rock
periwinkle snail awaiting identification* Family Littorinidae updated Jan 09 Where seen? This small snail is often seen on many of our rocky shores. At low tide, it is usually seen in groups wedged into crevices and cracks in rocks. Larger ones are sometimes seen on leaves of mangrove and coastal plants near the high water mark. Features: 0.8-1cm. Shells thin and smooth with fine grooves. Colours variable from black to light with brown speckles or stripes. Operculum brown and made from a horn-like material. The animal has short tentacles. |
 Sentosa, Aug 07 |
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 Underside |
 Closeup of shell opening and operculum. |
 Pulau Ubin, Dec 10 |
 When it rains, the snails are more active! |
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Rock periwinkle snails on Singapore shores
 Labrador, May 04  |
 Chek Jawa, Oct 04  |
 East Coast, Jun 06  |
more photos of rock periwinkle snails on Singapore shores
northern shores part 1 | part 2
southern shores
*Species
are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.
On this website, they are grouped by external features for convenience of display.
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