Iophon major var. tenuis (Brøndsted, 1924) Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Animalia phylum Porifera class Demospongiae order Poecilosclerida family Acarnidae genus Iophon species Iophon laevistylus Name Homonyms Iophon major var. tenuis (Brøndsted, 1924)