Nudibranchs belong to the order Nudibranchia, a group of soft-bodied marine gastropod molluscs that shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", and "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.
Phidiana hiltoni is a species of sea slug, an aeolid nudibranch, a shell-less marine gastropod mollusc in the family Facelinidae.
Melibe viridis is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Tethydidae.
The purple lady nudibranch, Paraflabellina funeka, is a species of aeolid nudibranch, and is a very colourful sea slug. It is a marine gastropod mollusc in the family Flabellinidae.
Flabellina is a genus of sea slugs, specifically aeolid nudibranchs. These animals are marine gastropod molluscs in the family Flabellinidae.
Phyllodesmium is a genus of predatory sea slugs, aeolid nudibranchs, marine gastropod molluscs in the family Facelinidae.
Felimare californiensis, common name the California blue dorid, is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae that eats dysideid sponges.
Paraflabellina ischitana is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Flabellinidae.
Coryphellina marcusorum, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Flabellina bertschi is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Coryphellina delicata is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Coryphellina hamanni is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Coryphella verrucosa, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Coryphellidae.
Samla bilas is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Samlidae.
Carronella pellucida is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Flabellinidae. It is occasionally referred to as the milky white sea slug, the pellucid aeolid, or the red-gilled nudibranch, though these names are not commonly accepted in formal settings.
Samla riwo is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Samlidae.
Samla rubropurpurata is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Samlidae.
Edmundsella vansyoci is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Unidentiidae is a taxonomic family of sea slugs, specifically aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea.
Luisella is a monotypic genus of sea slugs, specifically aeolid nudibranchs, marine gastropod molluscs in the family Samlidae. It's one species is Luisella babai.
