@inbook{ERMS:SourceID:9071, author = {Cook, S. de C. and Bergquist, P.R.}, note = {The PDF supplied here is a proof - NOT the definitive printed text - of a chapter of the Systema Porifera}, title = {Family Thorectidae Bergquist, 1978. Pp. 1028-1050. In: Hooper, J.N.A. & Van Soest, R.W.M. (eds) Systema Porifera - A guide to the classification of sponges. (2 volumes) Kluwer Academic/ Plenum Publishers: New York, 1708 + xvliii}, url = {http://www.marbef.org/data/aphia.php?p=sourcedetails&id=9071}, year = {2002} }