Quadrula flexuosa (Rafinesque, 1820) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Unionida family Unionidae genus Epioblasma species Epioblasma flexuosa Name Homonyms Quadrula flexuosa C.T.Simpson, 1900 Quadrula flexuosa C.T.Simpson, 1900