Nucula tumidula Thiele & Jaeckel, 1931 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Nuculida family Nuculidae genus Nucula species Nucula nucleus Name Homonyms Nucula tumidula Thiele & Jaeckel, 1931 Nucula tumidula Malm, 1861