#barnacle__cerriped__cerripede  marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces
  supertype:  crustacean  any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
  member of:  subclass_Cirripedia
  subtype:  acorn_barnacle__acornbarnacle__rock_barnacle__Balanus_balanoides  barnacle that attaches to rocks especially in intertidal zones
  subtype:  goose_barnacle__goosebarnacle__lepasfasciculari  stalked barnacle that attaches to ship bottoms or floating timbers

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