Carcinoecium-forming Epizoanthus [Hexacorallia: Zoantharia] and the biology of E. papillosus in the eastern Atlantic, with special reference to the cnidom Ryland, John S. Ward, Helen Zootaxa 2016 4088 4 489 514 7VZJQ [378,659,691,717] Anthozoa Epizoanthidae Epizoanthus Animalia Zoantharia 21 510 Cnidaria species papillosus