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Index of flora
Index of fauna
Kingdom Animale | Phylum Hemichordata | Class Enteropneusta
  Photo by Tan Bee HongAcorn Worms
These burrowing worm-like creatures are not related to the true worms and form a special group by themselves. They filter the sand for food, discarding the wastes at the anal end, which form characteristic coils on the surface at low tide. Casts average 6cm in diameter.
Introduction
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