#ark_shell__arkshell  marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface
  supertype:  #bivalve__lamellibranch  marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together
  member of:  #genus_Arca__Arca  type genus of the family Arcidae: ark shells and blood clams
     member of:  #family_Arcidae__Arcidae  ark shells
        member of:  #class_Bivalvia__Bivalvia__Lamellibranchia__class_Lamellibranchia__class_Pelecypoda  oysters; clams; scallops; mussels
           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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