Periaster fragilis (Düben & Koren, 1844) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Echinodermata class Echinoidea order Spatangoida family Schizasteridae genus Brisaster species Brisaster fragilis Name Homonyms Periaster fragilis A.Agassiz & H.L.Clark, 1907 Periaster fragilis A.Agassiz & H.L.Clark, 1907