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

INHS Collections Data

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Organism
  Animalia
    Bilateria
     Protostomia
     Lophozoa
      Mollusca
            Gastropoda
                   [Orthogastropoda]
                    Stylommatophora
                            Charopidae
                                     Andrefrancia
                                     Cavellia
                                     Charopa
                                     Chaureopa
                                     Pararhytida
                                     Radiodiscus
                                             Radiodiscus abietum
                                             Radiodiscus millecostatus
                                     Serpho
                                     Thalassohelix
                                     Xerocystis