Unio marginalis zonata Hanley & Theobald, 1876 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Unionida family Unionidae genus Trapezidens species Trapezidens scutum Name Homonyms Unio marginalis zonata Hanley & Theobald, 1876 Unio marginalis var. zonata Tapparone Canefri, 1889