Alcyonium cydonium Jameson, 1811 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Porifera class Demospongiae order Tetractinellida family Geodiidae genus Geodia species Geodia cydonium Name Homonyms Alcyonium cydonium Jameson, 1811 Alcyonium cydonium Linnaeus, 1767