Subclassis Opisthobranchia

Literature

• Brusca, R.C. and G.J. Brusca 1990. Invertebrates. Sinauer Associates Inc., Sunderland, U.S.A. 922 pp.
• Thompson, T.E. 1988. Molluscs: Benthic Opisthobranchs (Mollusca: Gastropoda). Synopses of the British fauna (NS), 8: 1-356.
• de Kluijver, M., S. Ingalsuo and R. de Bruyne, 2000. Macrobenthos of the North Sea. Vol. I - Keys to Mollusca and Brachiopoda. World Biodiversity database, CD-ROM Series. Expert Centre for Taxonomic Identifications (ETI), University of Amsterdam, Amsterdam. .