| Label | Id | |
|---|---|---|
| Anisacantha | 524413 | |
| Anobiinae | 441275 | |
| Anthomuricea | 44194 | |
| Anthothela | 44180 | |
| Antipatharia | 44168 | |
| Antipathidae | 44169 | |
| Antongiliinae | 524419 | |
| Apedilum | 903441 | |
| Aphia | 441898 | |
| Apodecta | 704410 | |
| Aporrhaidae | 387441 | |
| Arbelaezaster | 904411 | |
| Archachatina | 145441 | |
| Archephanes | 344187 | |
| Argoptochus | 1654413 |