Ships worm
(at least 3 specie in Swedish waters)

Distribution in scandinavian waters

Maximum length: The worm and its tunnels can in certain cases be severeal metres long, but are commonly only a few decimetres. Appearance: The ships worm bores large and deep calcareous lined tunnels in wood, while on the surface the wood can appear undamaged. Depth: From sea-level to unknown depth. Environment: Lives in wood in the sea. Misc: There are several groups of long and slim worm-like bivalves that bore in wood.     Some of the ships worm tunnels pictured above have probably been opened by gribbles. Classification: Ship worms are members of the bivalves under the molluscs.

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