Gooseneck Barnacle 7695092912 O
56Identifcation number on The Map®

Gooseneck Barnacle

Pollicipes polymerus

Gooseneck BarnacleHerb Gruenhagen


  • Goose barnacles (order Pedunculata), also called stalked barnacles or gooseneck barnacles, are filter-feeding crustaceans that live attached to hard surfaces of rocks and flotsam in the ocean intertidal zone
  • All goose barnacles have five plates


  • Southern Alaska to at last Punta Abreojos, Baja California


  • The goose-neck barnacle is a common inhabitant in the intertidal zone of rocky shores especially in association with the California mussel
  • Observed at rocky shores and rock jetties leading into bays


  • Feeds by growing outward so that it can extend its cirri in a fan oriented perpendicular to the backwash of the waves
  • Small particles of detritus and tiny crustaceans get caught in the cirri, which are subsequently eaten

Interesting Facts

  • The stalk of this animal has been used in the preparation of a chowder
  • Barnacle has been found on humpback whales