Fionoidea

Fionoidea is a superfamily of is a superfamily of nudibranchs, shell-less marine gastropod molluscs or sea slugs, in the suborder Aeolidacea. The families within Fionoidea were shown to be monophyletic on DNA evidence and a re-interpretation of family characteristics was provided.

Samlidae is a taxonomic family of brightly coloured sea slugs, specifically nudibranchs, marine gastropod mollusks.

Paracoryphellidae is a taxonomic family of brightly coloured sea slugs, specifically nudibranchs, marine gastropod mollusks.