Styracaster horridus Richard, 1903 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Echinodermata class Asteroidea order Paxillosida family Porcellanasteridae genus Styracaster species Styracaster elongatus Name Homonyms Styracaster horridus Sladen, 1883 Styracaster horridus Richard, 1903