Home > Harvesting > Freshwater Mussels > Species> Giant Floater   Giant Floater (Pyganodon grandis) The Giant Floater (Pyganodon grandis) is a large, thin-shelled species that was very common in floodplain lakes near the Illinois River. The shells were used as a spoons by prehistoric peoples, but were not sought by commercial mussel harvesters because the shells are too thin for making buttons or implants for cultured pearls. (Conservation Status: Currently Stable)

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