Calyptraea rugosa Carpenter, 1856 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Littorinimorpha family Calyptraeidae genus Crepidula species Crepidula onyx Name Homonyms Calyptraea rugosa Noetling, 1895 Calyptraea rugosa Deshayes, 1830 Calyptraea rugosa Lesson, 1831