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 a delicacy in Spain and Portugal. The resemblance of this barnacle's fleshy stalk to a goose's neck gave rise in ancient times to the notion that geese, or at least certain seagoing species of wild geese, literally grew from the barnacle. Indeed, the word "barnacle" originally referred to a species of goose, the barnacle goose "Branta leucopsis", whose eggs and young were rarely seen by humans because it breeds in the remote Arctic. Additionally, the picoroco barnacle is used in Chilean cuisine and is one of the ingredients in "curanto". Barnacle A barnacle is a type of arthropod constituting the