@inbook{AfReMaS:SourceID:8560, author = {de Weerdt, W.H.}, title = {The shallow-water Haplosclerida (Porifera, Demospongiae) of the north east Atlantic Ocean: taxonomy, phylogeny and historical biogeography. PhD Thesis. Universiteit van Amsterdam: Amsterdam, Netherlands. 243 pp.}, url = {https://marinespecies.org/afremas/aphia.php?p=sourcedetails&id=8560}, year = {1987} }