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  Animalia
      Arthropoda
        Crustacea
            Malacostraca
              Eumalacostraca
                  Peracarida
                    Amphipoda
                      Gammaridea
                            Hyperiopsidae
                                     Hyperiopsis
                                             Hyperiopsis voringi
                                             Hyperiopsis voringii
                                     Parargissa
                                             Parargissa americana
                                             Parargissa galatheae