| Megalomphalus Brusina, 1871 |
| Megalomphalus margaritae Rolán & Rubio, 1998 |
| Megalomphalus oxychone (Mörch, 1877) |
| Megalomphalus pilsbryi (Olsson & McGinty, 1958) |
| Narica Récluz, 1842 |
| Narica sulcata d'Orbigny, 1842 |
| Talassia Warén & Bouchet, 1988 |
| Talassia mexicana Hoffman & Freiwald, 2022 |
| Vanikoridae Gray, 1840 |
| Vanikoro Quoy & Gaimard, 1832 |
| Vanikoro oxychone Mörch, 1877 |
| Vanikoro sulcatus (d'Orbigny, 1842) |