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	Kingdom Animale | Phylum Chordata | Subphylum Vertebrata

Reef Eel Family Opichthyidae Eels are common in most rocky areas and reefs, and are often mistaken for sea snakes, but are easily recognised for what they are by the presence of fins and reduced gills. Young olive-green "sandsnakes" (length 5-10cm) are common in shallow reef flats.

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