Pleurolidiidae is a family of nudibranchs, shell-less marine gastropod molluscs or sea slugs, within the superfamily Aeolidioidea.
Genera and species According to Korshunova and colleagues (2025), the following genera and species are recognised in the family Pleurolidiidae:Bouchet, P.; Gofas, S. (2015). Pleurolidiidae. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-12-14 Pleurolidia Burn, 1966 Pleurolidia juliae Burn, 1966 Protaeolidiella Baba, 1955 Protaeolidiella atra Baba, 1955
Pleurolidia juliae and Protaeolidiella atra are sister species according to DNA evidence and are poorly supported as members of the polyphyletic Facelinidae, being placed in their own family, Pleurolidiidae. A revision of the relationships of members of Aeolidacea, which includes Facelinidae, recovered similar results.
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