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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© Aquascope 2000   Tjärnö Marine Biological Laboratory, Strömstad, Sweden
Bo Johannesson | Martin Larsvik | Lars-Ove Loo | Helena Samuelsson