| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Parathyasira bamberi Oliver, 2015 |
Western Indian Ocean | 1.87 | |
| Parathyasira dearborni (Nicol, 1965) |
Antarctic Atlantic and Antarctic Pacific | 0.5 | |
| Parathyasira dunbari (Lubinsky, 1976) |
Arctic and Northeast Atlantic | 0.8 | |
| Parathyasira equalis (Verrill & Bush, 1898) |
Equal cleftclam | Arctic and Atlantic Ocean | 0.6 |
| Parathyasira neozelanica Iredale, 1930 |
Southwest Pacific | ||
| Parathyasira resupina Iredale, 1930 |
Western Pacific |