Unio marginalis cylindrica Hanley & Theobald, 1876 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Unionida family Unionidae genus Lamellidens species Lamellidens marginalis Name Homonyms Unio marginalis cylindrica Hanley & Theobald, 1876 Unio marginalis var. cylindrica Hanley & Theobald, 1872