Giant Floater (Pyganodon grandis) from Charleston Swamp, Tombigbee River drainage, Greene County, Alabama @jthornton_1 #mussel #freshwater #freshwatermussel #musselsofinstagram #freshwatermusselsofinstagram #freshwatermusselsofalabama #giantfloater #Pyganodon #Pyganodongrandis #u#unionid #unionidae #mollusk #mollusca #river #riverlife #riverine #malacology #limnomalacology

Giant Floater (Pyganodon grandis) from Charleston Swamp, Tombigbee River drainage, Greene County, Alabama @jthornton_1 #mussel #freshwater #freshwatermussel #musselsofinstagram #freshwatermusselsofinstagram #freshwatermusselsofalabama #giantfloater #Pyganodon #Pyganodongrandis #u#unionid #unionidae #mollusk #mollusca #river #riverlife #riverine #malacology #limnomalacology