A genus of sessile cirripeds, family Balanidae, of which colonies are to be found on rocks at low water.
An illustration showing the early stages of balanus: A, nauplis (larva); e, Eye; B, Cypris-larva with…
A species of goose necked barnacles, a crustacean known for attaching itself to objects and other animals.
"Barnacles on cable of a Sounding Machine"—E. Benjamin Andrews 1895