Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795 Nudipleura Wägele & Willan, 2000 Pleurobranchoidea Gray, 1827 Family Pleurobranchidae Gray, 1827 Genus Berthellina Gardiner, 1936 Bertellina edwardsi nom. null. see Berthellina edwardsi (Vayssière, 1897)