gastéropodes
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Aaadonta | Taxon | 8 | 0.1 |
| Aaadonta Angaurana | Taxon | 11 | 0.1 |
| Aaadonta Irregularis | Taxon | 10 | 0.1 |
| Aaadonta Kinlochi | Taxon | 9 | 0.0 |
| Abronica | Taxon | 7 | 0.0 |
| Abyssochrysoidea | Taxon | 7 | 0.1 |
| Acanthina | Taxon | 11 | 0.3 |
| Acanthinucella | Taxon | 6 | 0.4 |
| Acanthodoris | Taxon | 10 | 0.1 |
| Acavidae | Taxon | 10 | 0.5 |
| Acavoidea | Taxon | 7 | 0.8 |
| Achatina Fulica | Taxon | 33 | 13.5 |
| Achatinella | Taxon | 10 | 0.0 |
| Achatinella Juncea | Taxon | 8 | 0.0 |
| Achatinella Thaanumi | Taxon | 8 | 0.0 |
| Achatinellidae | Taxon | 18 | 0.0 |
| Achatinidae | Taxon | 20 | 4.2 |
| Achatinoidea | Taxon | 11 | 0.2 |
| Aciculidae | Taxon | 11 | 0.4 |
| Acirsa | Taxon | 8 | 0.1 |
| Aclyvolva | Taxon | 8 | 0.1 |
| Aclyvolva Lanceolata | Taxon | 6 | 0.5 |
| Acochlidiacea | Taxon | 8 | 0.6 |
| Acochlidiidae | Taxon | 7 | 0.4 |
| Acochlidioidea | Taxon | 9 | 0.5 |
| Acroloxidae | Taxon | 15 | 0.6 |
| Acroloxus | Taxon | 13 | 0.5 |
| Acroloxus Coloradensis | Taxon | 11 | 0.3 |
| Acteon | Taxon | 9 | 0.1 |
| Acteon Tornatilis | Taxon | 12 | 0.3 |
| Acteonidae | Taxon | 14 | 0.3 |
| Acteonimorpha | Taxon | 5 | 0.0 |
| Acteoninoidea | Taxon | 4 | 0.0 |
| Acteonoidea | Taxon | 7 | 0.2 |
| Addisoniidae | Taxon | 7 | 0.3 |
| Adeorbis | Taxon | 2 | 0.0 |
| Adeorbis Elegans | Taxon | 4 | 0.0 |
| Admete | Taxon | 8 | 0.1 |
| Admete Watanabei | Taxon | 5 | 0.1 |
| Aegires | Taxon | 9 | 0.4 |
| Aegires Gardineri | Taxon | 4 | 0.3 |
| Aegires Minor | Taxon | 3 | 0.9 |
| Aegopinella Nitidula | Taxon | 9 | 0.0 |
| Aeolidia | Taxon | 8 | 0.3 |
| Aeolidida | Taxon | 8 | 1.6 |
| Aeolidiella | Taxon | 11 | 0.2 |
| Aeolidiella Alderi | Taxon | 11 | 0.0 |
| Aeolidiella Sanguinea | Taxon | 8 | 0.0 |
| Aeolidiidae | Taxon | 16 | 0.6 |
| Aeolidioidea | Taxon | 16 | 0.6 |