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]
              Pteriomorphia
                    Ostreoida
                            Spondylidae
                                     Spondylus
                                             Spondylus americanus
                                             Spondylus ictericus