Sphaerium regularis (Mandahl-Barth, 1954) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Sphaeriida family Sphaeriidae genus Sphaerium species Sphaerium regulare Name Homonyms Sphaerium regularis (Mandahl-Barth, 1954)