@inbook{ERMS:SourceID:42449, author = {Bouillon, J. and Gravili, C. and Pagès, F. and Gili, J.-M. and Boero, F.}, title = {An introduction to Hydrozoa. Mémoires du Muséum national d'Histoire naturelle, 194.}, url = {https://marbef.org/data../aphia.php?p=sourcedetails&id=42449}, year = {2006} }