TY - CHAP A1 - Reiswig, H.M. N1 - The PDF supplied here is a proof - NOT the definitive printed text - of a chapter of the Systema Porifera C1 - ISBN 0-306-47260-0 (printed version) TI - Class Hexactinellida Schmidt, 1870. pp 1201-1202 In Hooper, J.N.A. & van Soest, R.W.M. (ed.) Systema Porifera. A guide to the classification of sponges. 2 (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow. UR - https://www.marbef.org/data/aphia.php?p=sourcedetails&id=9096 PY - 2002 Y2 - 2024-03-29 ER -