Description

Also known as Acorn Barnacle, Common Barnacle, Common Goose Barnacle, Coral Barnacle, Coral-dwelling Barnacle, Duck Barnacle, Goose Barnacle, Pelagic Gooseneck Barnacle, Plain Goose Barnacle, Smooth Gooseneck Barnacle.

Found in colonies, in shallow inter-tidal waters and much deeper waters, on the surface of boats, buoys, corals, piers, seaweed, turtles and even crocodiles etc., over coral and rocky reefs. These barnacles attach by the head and send out their fan shaped cirri (Legs) for feeding.
They feed on zooplankton.
Length - 20cm
Depth - 0-75m
Widespread Worldwide

Barnacles form part of the fouling community!
These barnacles attach to anything, even found on a Snappy Handbag (Crocodile) the size of the barnacle indicated how long the Snappy Handbag had been in salt water! Ref: https://en.wikipedia.org/wiki/Lepas_anatifera