All Sea Slug & Nudibranch Species 2120

Sea slugs are shell-less or reduced-shell marine gastropods, and include nudibranchs (Nudibranchia), sap-sucking sea slugs (Sacoglossa), sea hares, headshield and side-gilled slugs, and bubble snails. SEASLUG.WORLD documents 2120 species with photographs contributed by divers and researchers worldwide. Browse the full catalogue below by taxonomy, scientific name or common name, or filter by colour.
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