. . . . . . "* ParhedylidaeThiele, 1931" . "* Sabulincolidae Rankin, 1979" . . "* PontohedylidaeStarobogatov, 1983" . "Microhedylidae are a taxonomic family of sea slugs, marine gastropod mollusks within the clade Acochlidiacea."@en . "* Unelidae Rankin, 1979" . "* Mancohedylidae Rankin, 1979" . . . "* Livorniellidae Rankin, 1979" .