The origins of Teredo navalis are unknown. Appropriately referred to as naval shipworms, T. navalis are molluscs that frequently dwell in the wood of ships. Due to the prominent use of ships in global trade and the consequent dispersal of the shipworms, the origins of T. navalis are uncertain. Masses of naval shipworms were first identified near the Netherlands in the North Sea. They are common to the Baltic Sea as well as the Atlantic and Pacific Oceans today.
Biogeographic Regions: nearctic (Introduced ); palearctic (Introduced ); oriental (Introduced ); ethiopian (Introduced ); neotropical (Introduced ); australian (Introduced ); atlantic ocean (Introduced ); pacific ocean (Introduced )