Balanus balanoides , now more commonly known by its accepted scientific name , is a widespread species of sessile acorn barnacle. It is a dominant member of the rocky intertidal zones in the North Atlantic and North Pacific. Physical Characteristics
Common threats include whelks (sea snails) and starfish. Life Cycle and Reproduction balanus balanoides
The opening at the top is diamond-shaped and protected by four plates that form a "door" to prevent drying out (desiccation) during low tide. Balanus balanoides , now more commonly known by