See text The Facelinidae are a taxonomic family of colorful sea slugs.

These are specifically aeolid nudibranchs.

They are marine gastropod molluscs.

[2][3] This family consists of the following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):[3] Gosliner et al. (2007)[11] have elevated subfamily Babakininae to family level Babakinidae.

Genera and species within the family Facelinidae include: Subfamily Facelininae Subfamily Crateninae Subfamily Favorininae Subfamily Herviellinae Subfamily Pteraeolidiinae Subfamily Incertae sedis Subfamilies and genera brought into synonymy: