The taxonomic history of the sponge order Haplosclerida is reviewed, with emphasis on literature concerning the Haplosclerida of the North Eastern Atlantic Ocean. The characters and their value for a phylogenetic classification are discussed. Two families are treated systematically: the Oceanapiidae, which have two representatives in the area, and the Petrosiidae, represented by one species. Emended diagnoses for the order, families, and genera are given.


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Naturalis journals & series

de Weerdt, W. H. (1985). A systematic revision of the North Eastern Atlantic shallow-water Haplosclerida (Porifera, Demospongiae), Part I: Introduction, Oceanapiidae and petrosiidae. Beaufortia, 35(5), 61–91.