1. ACKERS, R.G., MOSS, D. & PICTON, B.E. 1992. Sponges of the British Isles (‘Sponges V’). A Colour Guide and Working Document. Marine Conservation Society: 1–175.
2. ANONYMOUS. 1999. International Code of Zoological Nomenclature. Fourth edition. (International Trust for Zoological Nomenclature; The Natural History Museum: London): 1–306.
3. ARNDT, W. 1928. Kapitel 12, A. Glasschwämme. Pp. 1–8. In: Pax, F. & Arndt, W., Die Rohstoffe des Tierreichs. 1(Band 2, Kapitel 12). (Gebrüder Borntraeger: Berlin): 1–160, pls I-II.
4. ARNDT, W. 1935. Porifera. In: Die Tierwelt der Nord-und Ostsee. 3a (27). (Leipzig): 1–140.
5. BEKKER, I. 1829. Aristotelis De partibus animalium libri quatuor. Ex recensione Immanuelis Bekkeri. (Berolini: Berlin): 1–142.