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]
                    Stylommatophora
                      Orthurethra
                            Orculidae
                                     Orcula
                                             Orcula dolium
                                             Orcula gularis