You have requested access to download the full text of the source (SourceID: 405318):
Desqueyroux-Faúndez, R.; Valentine, C. (2002 [2004]). Family Callyspongiidae de Laubenfels, 1936. Pp. 835-851. In: Hooper, J.N.A. & Van Soest, R.W.M. (eds) Systema Porifera. A guide to the classification of sponges. Kluwer Academic/ Plenum Publishers, New York. 1708 + xvliii. ISBN 978-1-4615-0747-5 (eBook electronic version).