University of Illinois at Urbana-Champaign
Prairie Research Institute
Illinois Natural History Survey

INHS Collections Data

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  Animalia
    Bilateria
     Protostomia
     Lophozoa
      Mollusca
            Gastropoda
                   [Orthogastropoda]
              Prosobranchia
                     [Parasita]
                    Neritopsina
                            Helicinidae
                                     Helicina
                        Helicoidei
                          Helicoidea
                            Pleurodontidae
                                     Dentellaria
                                     Eurycratera
                                     Lucerna
                                     Pleurodonte
                                     Thelidomus