| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Abietinaria Kirchenpauer 1884 | 1 | 0 | 0 |
| Abietinaria abietina (Linnaeus 1758) (abiétinaire) | 0 | 0 | 1 |
| Abludomelita Karaman 1981 | 1 | 0 | 0 |
| Abludomelita obtusata (Montagu 1813) | 0 | 0 | 1 |
| Abra Lamarck 1818 | 1 | 0 | 0 |
| Abra alba (W. Wood 1802) (syndesmye blanche) | 0 | 0 | 1 |
| Abramis (brème) | 1 | 0 | 0 |
| Abramis brama (Linnaeus 1758) (Brème commune) | 0 | 0 | 1 |
| Acanthocardia Gray 1851 | 2 | 0 | 0 |
| Acanthocardia aculeata (Linnaeus 1758) (bucarde aiguillonnée) | 0 | 0 | 1 |
| Acanthocardia echinata (Linnaeus 1758) (Acanthocardia echinata) | 0 | 0 | 1 |
| Acanthochitona Gray 1821 | 2 | 0 | 0 |
| Acanthochitona crinita (Pennant 1777) (petit chiton épineux) | 0 | 0 | 1 |
| Acanthochitona fascicularis (Linnaeus 1767) | 0 | 0 | 1 |
| Acanthochitonidae Pilsbry 1893 | 1 | 0 | 0 |
