Palaeacmaea immigrans Perner, 1903 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca family Protoconchoididae genus Patelliconus species Patelliconus primulus Name Homonyms Palaeacmaea immigrans Perner, 1903 Palaeacmaea immigrans Barrande, 1903