| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Thyasira alleni Carrozza, 1981 |
Northeast Atlantic and the Mediterranean Sea | ||
| Thyasira anassa Oliver, 2015 |
Western Indian Ocean | 2.17 | |
| Thyasira atlantica Payne & Allen, 1991 |
Western Atlantic | ||
| Thyasira barbarensis (Dall, 1890) |
Northeast Atlantic | ||
| Thyasira biplicata (Philippi, 1836) |
Mediterranean Sea | ||
| Thyasira brevis Verrill & Bush, 1898 |
Northeast Atlantic | 0.65 | |
| Thyasira conia Dall & Simpson, 1901 |
Western Atlantic | 0.55 | |
| Thyasira cumingii (Fischer, 1861) |
Western Pacific | ||
| Thyasira debilis (Thiele, 1912) |
Southeast Pacific, Southwest Atlantic and the Antarctic | 0.3 | |
| Thyasira falklandica Smith, 1885 |
Southeast Pacific, Southwest Atlantic and the Antarctic | ||
| Thyasira flexuosa (Montagu, 1803) |
Flexuose cleftclam | Arctic, Pacific Ocean, Atlantic Ocean and the Mediterranean | 1.2 |
| Thyasira fuegiensis (Dall, 1890) |
Western Atlantic and Eastern Pacific | ||
| Thyasira gouldii (Philippi, 1845) |
Pacific Ocean, Atlantic Ocean and the Arctic | 0.58 | |
| Thyasira grandis Verrill & Smith, 1885 |
Mediterranean Sea | ||
| Thyasira granulosa Monterosato, 1874 |
Granulose cleftclam | North America and Mediterranean Sea | |
| Thyasira magellanica Dall, 1901 |
Western Atlantic and Eastern Pacific | ||
| Thyasira miyadii Habe, 1951 |
Northwest Pacific | ||
| Thyasira oblonga (Monterosato, 1878) |
Mediterranean Sea | ||
| Thyasira obsoleta (Verrill & Bush, 1898) |
Mediterranean Sea | ||
| Thyasira ovoidea Dall, 1889 |
Western Atlantic | ||
| Thyasira peregrina (Iredale, 1930) |
Southwest Pacific | ||
| Thyasira perplicata Salas, 1996 |
Mediterranean Sea | ||
| Thyasira planata (Jeffreys, 1882) |
Mediterranean Sea | ||
| Thyasira pygmaea Verrill & Bush, 1898 |
Western Atlantic | 0.2 | |
| Thyasira rotunda Jeffreys, 1881 |
Rotund cleftclam | North America | |
| Thyasira sarsii (Philippi, 1845) |
Northern Atlantic and the Mediterranean Sea | 2.35 | |
| Thyasira simplex Verrill & Bush, 1898 |
Simple cleftclam | North America | |
| Thyasira southwardae Oliver & Holmes, 2006 |
Atlantic Ocean | ||
| Thyasira striata (Sturany, 1896) |
Mediterranean Sea | ||
| Thyasira subequatoria Payne & Allen, 1991 |
Western Atlantic | ||
| Thyasira subovata Jeffreys, 1881 |
Mediterranean Sea | ||
| Thyasira succisa (Jeffreys, 1876) |
Cut-off cleftclam | North America and the Mediterranean Sea | |
| Thyasira tokunagai Kuroda & Habe, 1951 |
Northwest Pacific | ||
| Thyasira trisinuata (d'Orbigny, 1842) |
Atlantic cleftclam | Eastern Pacific and Western Atlantic | |
| Thyasira waikanae Fleming, 1950 |
Southwest Pacific |