Astralium semicostatum (Kiener, 1850) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Trochida family Turbinidae genus Astralium species Astralium semicostatum Name Synonyms Astraea semicostata (Kiener, 1850) Astralium semicostatum (P.Fischer, 1875) Calcar semicostatum P.Fischer, 1875 Trochus semicostatus Kiener, 1850 Homonyms Astralium semicostatum (P.Fischer, 1875) Astralium semicostatum (Kiener, 1850)