Hymedesmia atlantica Topsent, 1928 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Porifera class Demospongiae order Poecilosclerida family Hymedesmiidae genus Hymedesmia species Hymedesmia atlantica Name Synonyms Hymedesmia tenuissima var. atlantica Topsent, 1928 Homonyms Hymedesmia atlantica Topsent, 1928