"* Brondelia Bourguignat, 1862 ((Invalid: suppressed by ICZN Opinion 1410))" . "Williamia is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets. Their development is similar to other Siphonariids"@en . . . . "* Allerya M\u00F6rch, 1877 ((Invalid: suppressed by ICZN Opinion 1410))" . "* Parascutum Cossmann, 1890" . . . "* Scutulum Monterosato, 1877 ((Invalid: junior homonym of Scutulum Tournouer, 1869[Echinodermata]; Williamia and Parascutum are replacement names))" . "* Roya Iredale, 1912" .