Trochus millegranus Millet, 1865 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Trochida family Calliostomatidae genus Calliostoma species Calliostoma milletigranum Name Homonyms Trochus millegranus R.A.Philippi, 1836 Trochus millegranus Millet, 1865