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]
              Opisthobranchia
                    Nudibranchia
                           [Phanerobranchia]
                            Tethydidae
                                     Melibe
                                             Melibe leonina
                                     Tethys
                                             Tethys fimbria