@inbook{Hydrozoa:SourceID:124419, author = {Vervoort, W. and Schuchert, P. & van der Land, J.}, title = {as a contribution to UNESCO-IOC Register of Marine Organisms}, url = {https://marinespecies.org/hydrozoa/aphia.php?p=sourcedetails&id=124419}, year = {2000-2007} }