"Carcinus maenas"@en . . . . . . "\"Shore crab\" redirects here. This may also be used for crabs in the superfamily Grapsoidea.Carcinus maenas is a common littoral crab, and an important invasive species, listed among the 100 \"world's worst alien invasive species\". It is native to the north-east Atlantic Ocean and Baltic Sea, but has colonised similar habitats in Australia, South Africa, South America and both Atlantic and Pacific coasts of North America."@en . . . . . . . .