Pione margaritiferae var. johannae (Topsent, 1932) Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Animalia phylum Porifera class Demospongiae order Clionaida family Clionaidae genus Cliona species Cliona johannae Name Homonyms Pione margaritiferae var. johannae (Topsent, 1932)