Links

Opisthobranchs

• Anthony Holley’s Nudibranchs
• CIB - Club Immersió Biologia
• DORIS
• Gosliner Slug Lab
• GROC - Opistobranquis de Catalunya
• Hawaii Nudibranchs
• Indonesia Sea Slugs
• Kenya Sea Slugs
• M@re Nostrum
• Maldives Sea Slugs
• Medslugs
• New Zealand Nudibranchs
• Nudibranch ID guides for Android
• Nudibranch ID guides for iOS
• Nudibranch.org
• Nudibranchs of Sunshine Coast
• Okinawa Slug Site
• Pacific Coast Nudibranchs
• Pan American Nudibranchs
• Papua New Guinea Sea Slugs
• Philippine Nudibranchs
• Philippine/Indo-Pacific Opisthobranchs
• Poppe Images
• Red Sea Slugs
• Scottish Nudibranchs
• Sea Slug Forum
• Sea Slugs from South West Indian Ocean
• Sea Slugs of Hawaii
• Sea Slugs of the Philippines
• The Slug Site
• World Register of Marine Species

Classification, sistematics, taxonomy

• BEMON - Biographical Etymology of Marine Organism Names
• Catalogue of Life
• Check List of European Marine Mollusca (CLEMAM)
• CIESM Atlas of Exotic Species in the Mediterranean
• Fauna Iberica
• ITIS
• SeaLife
• World Register of Marine Species (WoRMS)

Facebook

• EPAM Nudibranchs
• NudiBase
• Nudibranch Lovers
• Nudibranquios
• OPK-Opistobranquis
• The World of Nudibranchs

Underwater Photography

• Albert Olle i Callau FOTOSUB
• Jordi Chias Fotograf
• Marc Gimenez Fotograf
• WetPixel

Miscellaneous

• Sea Shepherd