Naamgeving
| Valid name | Ostrea |
| Synonym | Monoeciostrea Orton, 1928 |
| Synonym | Cymbulostrea Sacco, 1897 |
| Synonym | Peloris Poli, 1791 |
| Synonym | Euostrea Douvillé, 1920 |
| Synonym | Ostracarius Duméril, 1806 |
| Synonym | Eostrea Von Ihering, 1907 |
| Synonym | Peloriderma Poli, 1795 |
| Synonym | Bellostrea Vyalov, 1936 |
| Synonym | Peloridoderma Agassiz, 1846 |