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Index of flora
Index of fauna
Kingdom Animale | Phylum Mollusca | Class Gastropoda
  Photo by Tan Bee HongPlanaxis

Family Planaxidae

This relatively common snail grazes on algae on rocky areas. The deep, smooth circular ridges on the shell are quite diagnostic. (Shell 1.5-2.5cm).
Shore environment
From A Guide to Seashore Life by Dr Leo W H Tan and Peter K L Ng
Published by the Singapore Science Centre and sponsored by BP

@Raffles Museum of Biodiversity Research and Singapore Science Centre