Reiswig, H.M. (2002). Hexactinosida incertae sedis. pp. 1355-1360. In Hooper, J.N.A. & van Soest, R.W.M. (ed.) Systema Porifera. A guide to the classification of sponges. Vol. 2 (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). ISBN 0-306-47260-0 (printed version).
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Reiswig, H.M.
2002
Hexactinosida <i>incertae sedis</i>. pp. 1355-1360. <i>In</i> Hooper, J.N.A. & van Soest, R.W.M. (ed.) Systema Porifera. A guide to the classification of sponges. Vol. 2 (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow).
ISBN 0-306-47260-0 (printed version)
Publication
The PDF supplied here is a proof - NOT the definitive printed text - of a chapter of the Systema Porifera
