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

INHS Collections Data

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      Mollusca
            Gastropoda
                   [Orthogastropoda]
                    Stylommatophora
                            Ferrussaciidae
                                     Cecilioides
                                             Cecilioides acicula
                                             Cecilioides aperta
                                             Cecilioides apertus