Hedylopsoidea

Hedylopsoidea was defined as a taxonomic superfamily of sea slugs, mostly marine gastropod mollusks within the informal group Opisthobranchia according to the taxonomy of Bouchet & Rocroi (2005).

Schrödl & Neusser (2010) have redefined the taxonomy of Acochlidiacea in 2010.

Families
Families within the superfamily Hedylopsoidea according to the taxonomy of Bouchet & Rocroi (2005) include:
 * Family Hedylopsidae
 * Family Ganitidae
 * Family Livorniellidae
 * Family Minicheviellidae
 * Family Parhedylidae
 * Family Tantulidae