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]
              Prosobranchia
                     [Parasita]
                    Archaeogastropoda
                            Addisoniidae
                                     Addisonia
                                             Addisonia brophyi
                                             Addisonia excentrica
                                             Addisonia lateralis
                                             Addisonia paradoxa