Suborder Acteonoida d'Orbigny 1842 (snail)
Gastropoda - Opisthobranchiata
Parent taxon: Cephalospidea according to J. D. Stilwell et al. 2004
Sister taxa: Bulloidea, Cylichnoidea, Cylindrobulloidea, Haminoeoidea, Notodiaphanidae, Philinoidea, Ringiculoidea, Runcinoidea
Subtaxa: none
Ecology: epifaunal omnivore
Distribution: there are no occurrences of Acteonoida in the database