A plethora of photos and information about Opisthobranchs from the Mediterranean Sea. Also includes nudibranchs from parts of the world other than the Mediterranean. www.medslugs.de
Devoted primarily to the nudibranchs of the Philippines, but also contains information and photographs about crinoids (Echinodermata) and reef organisms in general. divegallery.com
A site featuring Okinawan Opisthobranch Molluscs, nudibranchs and other related sea slugs such as bubble-shells, sea hares and side-gilled slugs. rfbolland.com/okislugs/index.html
You can ask questions and post information on nudibranchs and other related sea slugs such as bubble-shells, sea hares and side-gilled slugs. www.seaslugforum.net
Electronic field guide of Antarctic opisthobranchs. Part of overall marine field guide to Antarctica. Web site by Peter Brueggeman, SIO librarian. Photos by Norbert Wu, P. Brueggeman, and Kathleen Conlan. scilib.ucsd.edu/sio/nsf/fguide/branchs.html
A rundown of some of the nudibranchs found in Papua New Guinea. Part of a larger site dedicated to this corner of the world. www.uga.edu/cuda/nudis.html
Photos of nudibranchs from the Mediterranean, Indian Ocean, and the Red Sea. Unfortunately (from a certain perspective), there is more information about flatworms on this site than about nudibranchs. www.rzuser.uni-heidelberg.de/~bu6/index.html
Description, classification and photographs of nudibranchs, as well as the Australasian Nudibranch News, an online newsletter dedicated to nudibranchs of the Australia/Asia region. Part of a larger site devoted to Australian scuba diving. www.diveoz.com.au/nudibranchs/nudibranch.asp?info=main_page
Photographs, an interactive sightings form for divers from around the world, some general information, and a touch of anatomy. Concentrated mostly on opisthobranchs of Costa Rica. www.slugophile.org
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