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
Mermaid Man and Barnacle Boy in the years since Borgnine's passing, but has been limited to non-speaking roles or portrayals by other characters, most notably SpongeBob. Barnacle Boy is voiced by Tim Conway, who co-starred with Borgnine in the sitcom "McHale's Navy". In 2010, Burt Ward, together with Adam West as Mermaid Man, guest starred as the young Barnacle Boy in the episode "Back to the Past". In September 2018, "SpongeBob" showrunner Vincent Waller confirmed that Conway would not reprise his role as Barnacle Boy again. Waller stated: Mermaid Man and Barnacle Boy Mermaid Man and Barnacle Boy are fictional characters in the Nickelodeon animated