| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Neopycnodonte cochlear | (Poli, 1795) | accepted name | Yes | senior synonym |
new combination |
| Ostrea alveatula | Jousseaume, 1925 | synonym | No | junior synonym |
original combination |
| Ostrea cochlear | Poli, 1795 | synonym | No | senior synonym |
original combination |
| Ostrea crocea | Dufo, 1840 | synonym | No | junior synonym |
original combination |
| Ostrea cucullina | Deshayes, 1863 | synonym | No | junior synonym |
original combination |
| Ostrea excavata | Lamarck, 1819 | synonym | No | junior synonym |
original combination |
| Ostrea hiranoi | Baker & Spicer, 1930 | synonym | No | junior synonym |
original combination |
| Ostrea italica | Defrance, 1821 | synonym | No | junior synonym |
original combination |
| Ostrea kauaia | Dall, Bartsch & Rehder, 1938 | synonym | No | junior synonym |
original combination |
| Ostrea laterostrata | Fenaux, 1942 | synonym | No | junior synonym |
original combination |
| Ostrea laysana | Dall, Bartsch & Rehder, 1938 | synonym | No | junior synonym |
original combination |
| Ostrea lima | Sowerby, 1971 | synonym | No | junior synonym |
original combination |
| Ostrea musashiana | Yokoyama, 1920 | synonym | No | junior synonym |
original combination |
| Pycnodonta cochlear | (Poli, 1795) | synonym | No | senior synonym |
new combination |
| Pycnodonte floribunda | Monterosato, 1916 | synonym | No | junior synonym |
original combination |