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Organism
  Animalia
      Echinodermata
            Ophiuroidea
              Myophiuroidea
                Metophiurida
                  Ophintegrida
                    Ophiacanthida
                            Ophiacanthidae
                                     Ophiacantha
                                             Ophiacantha contigua
                                             Ophiacantha costata
                                             Ophiacantha inconspicua
                                             Ophiacantha spinifera