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Organism
  Animalia
      Arthropoda
            Malacostraca
              Eumalacostraca
                  Peracarida
                    Isopoda
                      Sphaeromatidea
                          Sphaeromatoidea
                            Sphaeromatidae
                                     Cassidinidea
                                             Cassidinidea ovalis
                                     Sphaeroma
                                             Sphaeroma walkeri