Ircinia tristis (Duchassaing & Michelotti, 1864) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Porifera class Demospongiae order Dictyoceratida family Irciniidae genus Ircinia species Ircinia tristis Name Synonyms Polytherses tristis Duchassaing & Michelotti, 1864 Homonyms Ircinia tristis (Duchassaing & Michelotti, 1864)