Shipworm is a marine borer with unique adaptation.
They mainly live in wood and digest wood, except Kuphus sp. However, some of them are able to feed on plankton and they can live in other media in absence of wood. Most of them are widely distributed on earth but they are mainly limited by salinity, temperature and wood available. Recently, it is approximately 68 species of shipworms are distributed around the world, and at least 45 of them are in the Indo-West Pacific Region . In comparison with Indian coastline, the coastline in North Sulawesi peninsula is proportionally smaller.