#keyhole_limpet__keyholelimpet__Fissurella_apertura__Diodora_apertura  marine limpet having a conical shell with an opening at the apex
  supertype:  #limpet  any of various usually marine gastropods with low conical shells; found clinging to rocks in littoral areas
  member of:  #genus_Fissurella__Fissurella  type genus of the family Fissurellidae: keyhole limpets
     member of:  #family_Fissurellidae__Fissurellidae  marine limpets
        member of:  #class_Gastropoda__Gastropoda__Gasteropoda__class_Gasteropoda  snails and slugs and their relatives
           member of:  #phylum_Mollusca__Mollusca  gastropods; bivalves; cephalopods; chitons
              member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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