Lampsilis gracilis lacustris F.C.Baker, 1922 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Unionida family Unionidae genus Potamilus species Potamilus fragilis Name Homonyms Lampsilis gracilis lacustris F.C.Baker, 1922 Lampsilis gracilis var. lacustris F.C.Baker, 1922