| Nominal Species (n = 21) | Present allocation (n = 7) | Ref. |
|---|---|---|
| Ostrea alveatula Jousseaume, 1925 | Neopycnodonte cochlear | 3477 |
| Ostrea cochlear Poli, 1795 | Neopycnodonte cochlear | 3477 |
| Ostrea crocea Dufo, 1840 | Neopycnodonte cochlear | 3477 |
| Ostrea cucullina Deshayes, 1863 | Neopycnodonte cochlear | 3477 |
| Ostrea excavata Lamarck, 1819 | Neopycnodonte cochlear | 3477 |
| Pycnodonte fischeri Dall, 1914 | Pycnodonte fischeri | 19 |
| Pycnodonte floribunda Monterosato, 1916 | Neopycnodonte cochlear | 3477 |
| Ostrea hiranoi Baker & Spicer, 1930 | Neopycnodonte cochlear | 3477 |
| Mytilus hyotis Linnaeus, 1758 | Pycnodonte hyotis | 80041 |
| Ostrea inermis Sowerby, 1871 | Parahyotissa inermis | 3477 |
| Ostrea italica Defrance, 1821 | Neopycnodonte cochlear | 3477 |
| Ostrea kauaia Dall, Bartsch & Rehder, 1938 | Neopycnodonte cochlear | 3477 |
| Ostrea laterostrata Fenaux, 1942 | Neopycnodonte cochlear | 3477 |
| Ostrea laysana Dall, Bartsch & Rehder, 1938 | Neopycnodonte cochlear | 3477 |
| Ostrea lima Sowerby, 1971 | Neopycnodonte cochlear | 3477 |
| Parahyotissa mcgintyi Harry, 1985 | Parahyotissa mcgintyi | 19 |
| Ostrea musashiana Yokoyama, 1920 | Neopycnodonte cochlear | 3477 |
| Ostrea nobilis Sowerby, 1871 | Parahyotissa inermis | 3477 |
| Ostrea thaanumi Dall, Bartsch & Rehder, 1938 | Hyotissa numisma | 3477 |
| Ostrea thomasi Mclean, 1941 | Pycnodonte hyotis | 75097 |
| Neopycnodonte zibrowii Gofas, Salas & Taviani, 2009 | Neopycnodonte zibrowii | 3477 |