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 Mermaid Man and Barnacle Boy Mermaid Man and Barnacle Boy are fictional characters in the Nickelodeon animated television series "SpongeBob SquarePants". Mermaid Man was voiced by Ernest Borgnine from 1999 to his death in 2012, and Barnacle Boy is voiced by Tim Conway. They are a spoof of both Aquaman & Aqualad and Batman & Robin. Mermaid Man and Barnacle Boy were created and designed by Stephen Hillenburg. The characters debuted on August 21, 1999 in the series' episode "Mermaid Man and Barnacle Boy". Mermaid Man and Barnacle Boy are semi-retired superheroes in the fictional city of Bikini Bottom. Within