Calyculina truncata (A.Gould, 1848) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Sphaeriida family Sphaeriidae genus Musculium species Musculium partumeium Name Homonyms Calyculina truncata (Linsley, 1845) Calyculina truncata (A.Gould, 1848)