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
            Bivalvia
                   [Pelecypoda]
              Autobranchia
                Heteroconchia
                 Euheterodonta
                  Imparidentia
                    Venerida
                          Cyrenoidea
                            Cyrenidae
                                     Batissa
                                             Batissa violacea
                                     Cyanocyclas
                                     Villorita