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Barnacle adults are sessile; most are suspension feeders with hard calcareous shells, but the Rhizocephala are specialized parasites of other crustaceans, with reduced bodies. Barnacles have existed since at least the mid-Carboniferous, some 325 million years ago. In folklore, barnacle geese were once held to emerge fully formed from goose ...
Antennae (sg.: antenna) (sometimes referred to as "feelers") are paired appendages used for sensing in arthropods. ... Cutaway diagram of a barnacle, with antennae ...
Chthamalus antennatus, the six-plated barnacle is a species of intertidal barnacle found in eastern and southern Australia. Growing from two centimetres wide and one centimetre high. The barnacle is found on the coast, usually on rocks at or above the high tide level or just below the splash zone. Feeding occurs only at unusually high tides. [1 ...
Austromegabalanus psittacus, the giant barnacle or picoroco as it is known in Spanish, is a species of large barnacle native to the coasts of southern Peru, all of Chile and southern Argentina. [ 2 ] [ 3 ] It inhabits the littoral and intertidal zones of rocky shores and normally grows up to 30 centimetres (12 in) tall with a mineralized shell ...
Balanus glandula (commonly known as the North American acorn barnacle or common acorn barnacle) is one of the most common barnacle species on the Pacific coast of North America, distributed from the U.S. state of Alaska to Bahía de San Quintín near San Quintín, Baja California. [1]
Megabalanus tintinnabulum is a species of large barnacle in the family Balanidae. It is the type species of the genus. The specific name comes from the Latin tintinnabulum meaning a handbell and probably refers to the fact that small groups of barnacles resemble clusters of miniature bells.
Elminius modestus) is a species of barnacle in the family Elminiidae, native to Australia, Tasmania and New Zealand, but now spread to Britain and the north west coasts of Europe. [1] It reaches a maximum size of about 10 millimetres ( 3 ⁄ 8 in) in diameter.
Chthamalus fragilis is a small gray barnacle found in the upper intertidal zone of the northwestern Atlantic Ocean, from approximately Cape Cod southward to Florida and into the Caribbean and Gulf of Mexico. It is also commonly known as little grey barnacle.