| Diodora inaequalis (G. B. Sowerby I, 1834) |
| Diodora jaumei Aguayo & Rehder, 1936 |
| Diodora listeri (d'Orbigny, 1847) |
| Diodora meta (Ihering, 1927) |
| Diodora minuta (Lamarck, 1822) |
| Diodora patagonica (d'Orbigny, 1839) |
| Diodora philippiana Finlay, 1930 |
| Diodora punctifissa McLean, 1970 |
| Diodora sarasuae Espinosa, 1984 |
| Diodora saturnalis (Carpenter, 1864) |
| Diodora sayi (Dall, 1889) |
| Diodora variegata (G. B. Sowerby II, 1862) |
| Diodora viridula (Lamarck, 1822) |
| Diodora wetmorei Pérez-Farfante, 1945 |
| Diodorinae Odhner, 1932 |
| Diodorini Odhner, 1932 |
| Emarginula Lamarck, 1801 |
| Emarginula dentigera Heilprin, 1889 |
| Emarginula emarginata Blainville, 1825 |
| Emarginula phrixodes Dall, 1927 |