#family_Balanidae__Balanidae  stalkless barnacles
  supertype:  arthropod_family__arthropodfamily  any of the arthropods
  member of:  subclass_Cirripedia
  member:  genus_Balanus__Balanus  type genus of the family Balanidae
     member:  acorn_barnacle__acornbarnacle__rock_barnacle__Balanus_balanoides  barnacle that attaches to rocks especially in intertidal zones

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