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| shelled snails text index | photo index |
| Phylum Mollusca > Class Gastropoda > Family Neritidae |
| Waved
nerite snail Nerita undata Family Neritidae updated Aug 10 Where seen? This snail is commonly seen on many of our rocky shores. The study by Tan & Clements (2008) found this snail in crevices and under rocks of breakwaters and rocky shores of middle to upper intertidal zones. They note that the snails are nocturnal, emerging from their hiding places at dusk. Sites included: Pulau Ubin, Changi, Marina South, Sentosa, St. John's Island, Pulau Hantu, Pulau Salu, Tuas, Labrador, Raffles Lighthouse. Features: 2-3cm. Shell sturdy and rounded, the spire sticks out a bit. The shell has fine smooth ribs, colours and patterns variable. The flat underside is white and may be wrinkled or have some ridges. Often with yellow stains near the shell opening, with 3-5 distinct teeth with uppermost tooth squarish. The outer lip has little bumps with a distintcly larger 'tooth' at one end. Operculum evenly covered in tiny bumps. The animal has fine black stripes and long black tentacles. Sometimes confused with other similar nerites. Here's a comparison of these similar nerite snails and how to tell them apart. Human uses: Where it is common, it is often collected for food and shellcraft by coastal dwellers. |
 Sisters Island, May 08  |
 Sisters Island, Feb 11 |
 Underside. |
 3-5 teeth one squarish and large 'tooth' on outer lip. |
Waved nerite snails on Singapore shores
 Kusu Island, May 05  |
 St. John's Island, Jan 06  |
 Chek Jawa, May 05  |
more photos of waved nerite snails on Singapore shores
northern shores
southern shores part 1 | part 2 | part 3 | part 4
Links
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Graham Brash, Singapore. 145 pp.|
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