The Polyceridae are a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod mollusks within the superfamily Polyceroidea.
The Chromodorididae, or chromodorids, are a taxonomic family of colourful, sea slugs; dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. “Chromodorid nudibranchs are among the most gorgeously coloured of all animals.” The over 360 described species are primarily found in tropical and subtropical waters, as members of coral reef communities, specifically associated with their sponge prey. The chromodorids are the most speciose family of opisthobranchs. They range in size from <10mm to over 30 cm, although most species are approximately 15–30 mm in size.
Phidiana militaris is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Aeolidiidae.
Okenia is a genus of colorful sea slugs, specifically of dorid nudibranchs, marine gastropod mollusks in the family Goniodorididae.
Doris is a genus of sea slugs, specifically dorid nudibranchs. These animals are marine gastropod molluscs in the family Dorididae.
Embletoniidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Nudipleura. There are no subfamilies in the Embletoniidae.
Thecacera pacifica is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Polyceridae. It is sometimes also nicknamed Pikachu nudibranch due to its resemblance to the Pokémon character Pikachu.
Kalinga ornata is a species of large, colourful nudibranch in the family Polyceridae. It is the only species in the genus Kalinga, which is the type genus of the subfamily Kalinginae.
Facelina is a genus of sea slug, an aeolid nudibranch in the family Facelinidae.
Thecacera pennigera, common name the winged thecacera, is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.
Microchlamylla gracilis, sometimes known by the common name slender eolis, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Crimora papillata is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.
Thecacera darwini is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Onchidoris proxima is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae. This species is found in the northeastern and northwestern parts of the Atlantic Ocean. It is also reported from the northeastern Pacific Ocean. Previously in the genus Adalaria this species was moved to Onchidoris as a result of a molecular phylogeny study.
Rubramoena amoena is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Fionidae.
Zelentia pustulata is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
Amphorina farrani is a species of sea slug or nudibranch, a marine gastropod mollusc in the family Eubranchidae. Several species of Eubranchus were transferred to Amphorina in 2020.
Knoutsodonta depressa is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.
Platydoris ellioti is a species of sea slug, a dorid nudibranch, shell-less marine opisthobranch gastropod mollusks in the family Discodorididae.
