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Organism
  Animalia
      Mollusca
            Gastropoda
              Heterobranchia
                Euthyneura
                 Tectipleura
                  Eupulmonata
                    Stylommatophora
                      Helicina
                        Oleacinoidei
                          Oleacinoidea
                            Oleacinidae
                              Varicellinae
                                     Melaniella
                                             Melaniella gracillima