Eoacmaea calamus (Crosse & P.Fischer, 1864) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda family Eoacmaeidae genus Eoacmaea species Eoacmaea calamus Name Synonyms Acmaea calamus (Crosse & P.Fischer, 1864) Acmaea calamus polyactina Verco, 1912 Patella calamus Crosse & P.Fischer, 1864 Patelloida profunda calamus (Crosse & P.Fischer, 1864) Homonyms Eoacmaea calamus (Crosse & P.Fischer, 1864)