Cereus Oken, 1815 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Animalia phylum Cnidaria class Anthozoa order Actiniaria family Sagartiidae genus Cereus Name Synonyms Cereus Milne-Edwards, 1857 Homonyms Cereus Oken, 1815 Cereus Mill. Cereus Ilmoni, 1830 Cereus Milne-Edwards, 1857