Barnacle Barnacle A barnacle is a type of arthropod constituting the infraclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile (nonmotile) suspension feeders, and have two nektonic (active swimming) larval stages. Around 1,220 barnacle species are currently known. The name "Cirripedia" is Latin, meaning "curl-footed". The study of barnacles is called cirripedology. Barnacles are encrusters, attaching themselves permanently to a hard substrate. The most common, "acorn barnacles" (Sessilia), are sessile, growing their shells directly onto the
Barnacle Bill (1957 film) Barnacle Bill (1957 film) Barnacle Bill (released in the US as All at Sea) is a 1957 Ealing Studios comedy film, starring Alec Guinness. He plays an unsuccessful Royal Navy officer, and six of his maritime ancestors. This was the penultimate Ealing comedy as well as the last film Guinness made for Ealing Studios. By coincidence, his first Ealing success was "Kind Hearts and Coronets" (1949), in which he also played multiple roles. The film was written by the screenwriter of "Passport to Pimlico". William Horatio Ambrose (Guinness) wants desperately to live up to the proud family tradition; the Ambroses