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Missouri Department of Conservation
MDC Discover Nature
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Belted Crayfish (Big River Crayfish)
Faxonius harrisonii (formerly Orconectes harrisonii)
Bryozoans (Moss Animals)
Freshwater species in the phylum Bryozoa
Freshwater Mussels
Bivalve molluscs in order Unionoida
Golden Crayfish
Faxonius luteus (formerly Orconectes luteus)
Hydras
Various species in the genus Hydra
Lilliput
Toxolasma parvus
Ringed Crayfish
Faxonius neglectus (formerly Orconectes neglectus)
Spothanded Crayfish
Faxonius punctimanus (formerly Orconectes punctimanus)
Turbellarians (Planarians; Free-Living Flatworms)
Species in genera Dugesia, Planaria, etc.
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