A marine crustacean with an external shell, which attaches itself permanently to a surface and feeds by filtering particles from the water using its modified feathery legs
A sessile barnacle of the genus Balanus or related genera; an acorn barnacle.
A stalkless barnacle that attaches itself to a variety of surfaces including rocks, ships, and marine animals
A goose with a white face and black neck, breeding in the arctic tundra of Greenland, Spitsbergen, and Novaya Zemlya
A stalked barnacle which hangs down from driftwood or other slow-moving floating objects, catching passing prey with its feathery legs