Bergquist, P.R.; Cook, S.D.C. (2002). Family Pseudoceratinidae Carter, 1885, pp. 1086-1088. In: Hooper, J.N.A.; Van Soest, R.W.M. (Ed.) (2002). Systema Porifera: a guide to the classification of sponges (2 volumes). Kluwer Academic/Plenum, NY 1708+ XVLIII. ISBN 0-306-47260-0 (printed version).
9081
Bergquist, P.R.; Cook, S.D.C. (2002). Family Pseudoceratinidae Carter, 1885, pp. 1086-1088. <I>In</I>: Hooper, J.N.A.; Van Soest, R.W.M. (Ed.) (2002). <i>Systema Porifera: a guide to the classification of sponges </i> (2 volumes). Kluwer Academic/Plenum, NY 1708+ XVLIII. ISBN 0-306-47260-0 (printed version).
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The PDF supplied here is a proof - NOT the definitive printed text - of a chapter of the Systema Porifera