| Nominal Species (n = 4) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Mytilopsis adamsi Morrison, 1946 | Mytilopsis adamsi | 83435 |
| Dreissena bugensis Andrusov, 1897 | Dreissena bugensis | 19 |
| Mytilus leucophaeatus Conrad, 1831 | Mytilopsis leucophaeata | 3477 |
| Mytilopsis lopesi Alvarenga & Ricci, 1989 | Mytilopsis lopesi | 83435 |