The Balanomorpha, often called acorn barnacles, are perfectly symmetrical, with an operculum that evolved convergently with the verrucomorphans and a wall that includes so-called marginal plates unique to that lineage (Gale & Sørensen, 2014).

Alien species The striped barnacle Amphibalanus amphitrite is a cosmopolitan barnacle that naturally occurs in almost every tropical and subtropical sea. It is a typical fouling species that can reach different places by attaching itself to ship’s hulls.

Amphibalanus amphitrite is a species of acorn barnacle in the Balanidae family. Its common names include the striped barnacle, the purple acorn barnacle and Amphitrite's rock barnacle. It is found in warm and temperate waters worldwide.

Barnacles are arthropods of the subclass Cirripedia in the subphylum Crustacea.They are related to crabs and lobsters, with similar nauplius larvae.Barnacles are exclusively marine invertebrates; many species live in shallow and tidal waters.Some 2,100 species have been described.. Barnacle adults are sessile; most are suspension feeders with hard calcareous shells, but the Rhizocephala are ...

Semibalanus cariosus, commonly known as the thatched barnacle, rock barnacle or horse barnacle, [2] is a species of acorn barnacle occurring in the northern Pacific Ocean. This barnacle has six wall plates which are sculpted with vertical tube-like ribs which extend downwards onto the rock in projections rather like the edge of a thatched roof.

WoRMS (2025). Perforatus perforatus (Bruguière, 1789). Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=535477 on 2025-02-19

2023年7月5日 · Here, we present compelling molecular evidence that the exceedingly rare scale-worm parasite barnacle Rhizolepas is positioned within a clade comprising species currently assigned to Octolasmis, a genus exclusively commensal with at …

2021年2月25日 · We present a comprehensive revision and synthesis of the higher-level classification of the barnacles (Crustacea: Thecostraca) to the genus level and including both extant and fossils forms. We...

Stationary barnacles are regularly attacked and eaten by sea stars (starfish), sea cucumbers, some sea worms, as well as various snails and whelks. Small fish find it easy to hover over barnacles and nibble at the animal as it extends itself from the protective shell to feed upon passing plankton.

The oyster flatworm, Stylochus ellipticus, is a predator of barnacles. The opportunistic worm approaches a feeding barnacle, quickly inserting its pharanyx through the open valves. The barnacle shuts its valves, but the worm has “a foot in the …