| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Cyrtodaria kurriana Dunker, 1861 |
Kurr propellerclam | Arctic, Northern Pacific, and Northern Atlantic | |
| Cyrtodaria siliqua (Spengler, 1793) |
Northern propellerclam | Arctic and Northern Atlantic | 11 |