Meridiastra medius (O'Loughlin, Waters & Roy, 2003) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Echinodermata class Asteroidea order Valvatida family Asterinidae genus Meridiastra species Meridiastra medius Name Synonyms Patiriella medius O' Loughlin, Waters & Roy, 2003 Homonyms Meridiastra medius (O'Loughlin, Waters & Roy, 2003)