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Taxon Search
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Organism
  Chromista
         [Microbe]
      Chrysophyta
            Bacillariophyceae
                          Lymnaeoidea
                            Physidae
                                     Aplexa
                                     Aplexa
                                             Aplexa hypnorum
                                     Beringophysa
                                             Beringophysa jennessi
                                                   [Physa jennessi]
                                     Physa
                                           [Physa/Physella]
                                             Physa fontinalis
                                             Physa marmorata
                                             Physa megalochlamys
                                             Physa natricina
                                             Physa skinneri
                                             Physa vernalis
                                     Physella
                                           [Physa/Physella]
                                             Physella acuta
                                                   [Physa acuta]
                                             Physella ancillaria
                                                   [Physa ancillaria]
                                             Physella carolinae
                                                   [Physa carolinae]
                                             Physella columbiana
                                             Physella cooperi
                                             Physella gyrina
                                                   [Physa gyrina]
                                             Physella lordi
                                             Physella mexicana
                                                   [Physa cupreonitens]
                                             Physella pomilia
                                                   [Physa pomilia]
                                             Physella propinqua
                                             Physella virginea
                                             Physella zionis
                                                   [Physa zionis]
                                     Stenophysa
                                             Stenophysa marmorata
                                                   [Aplexa marmorata]