| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Abalistes | 2 | 0 | 0 |
| Abalistes stellaris (Bloch & Schneider 1801) (Baliste étoilé) | 0 | 0 | 1 |
| Abalistes stellatus (Anonymous 1798) (Baliste étoilé) | 0 | 0 | 1 |
| Ablennes | 1 | 0 | 0 |
| Ablennes hians (Valenciennes 1846) (Anguille plate) | 0 | 0 | 1 |
| Abudefduf | 3 | 0 | 0 |
| Abudefduf bengalensis (Bloch 1787) | 0 | 0 | 1 |
| Abudefduf saxatilis (Linnaeus 1758) (Castagnole) | 0 | 0 | 1 |
| Abudefduf vaigiensis (Quoy & Gaimard 1825) (Sergent-major de Mer Rouge) | 0 | 0 | 1 |
| Abylidae L. Agassiz 1862 | 2 | 0 | 0 |
| Acanthaceae | 1 | 0 | 0 |
| Acanthaster Gervais 1841 | 1 | 0 | 0 |
| Acanthaster planci (Linnaeus 1758) | 0 | 0 | 1 |
| Acanthasteridae | 1 | 0 | 0 |
| Acanthocephala | 1 | 0 | 0 |
