gastéropodes
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Tectarius | Taxon | 11 | 0.1 |
| Tectarius Coronatus | Taxon | 13 | 0.2 |
| Tectonatica | Taxon | 9 | 0.1 |
| Tectus | Taxon | 7 | 0.8 |
| Tectus Conus | Taxon | 6 | 0.8 |
| Tegula | Taxon | 10 | 0.5 |
| Tegula Brunnea | Taxon | 9 | 0.4 |
| Tegula Fasciata | Taxon | 6 | 0.0 |
| Tegulidae | Taxon | 10 | 0.1 |
| Tenellia | Taxon | 8 | 0.2 |
| Terebra | Taxon | 9 | 1.2 |
| Terebra Subulata | Taxon | 6 | 0.0 |
| Terebridae | Taxon | 17 | 0.7 |
| Terestrombus | Taxon | 6 | 0.1 |
| Terestrombus Fragilis | Taxon | 7 | 0.2 |
| Tergipedidae | Taxon | 10 | 0.1 |
| Tergipes | Taxon | 5 | 0.2 |
| Testacella | Taxon | 10 | 6.1 |
| Testacella Haliotidea | Taxon | 12 | 4.9 |
| Testacella Maugei | Taxon | 8 | 1.1 |
| Testacella Scutulum | Taxon | 7 | 0.7 |
| Testudovolva | Taxon | 6 | 0.1 |
| Tethydidae | Taxon | 11 | 0.4 |
| Tethys | Taxon | 7 | 0.7 |
| Thais | Taxon | 11 | 0.8 |
| Thais Clavigera | Taxon | 5 | 0.3 |
| Thalassocyon | Taxon | 5 | 0.2 |
| Thaleia | Taxon | 5 | 0.2 |
| Theba | Taxon | 8 | 0.8 |
| Theba Pisana | Taxon | 16 | 6.0 |
| Thecacera | Taxon | 12 | 0.4 |
| Thecacera Pennigera | Taxon | 9 | 0.5 |
| Thecacera Picta | Taxon | 7 | 0.5 |
| Thecosomata | Taxon | 24 | 1.3 |
| Theodoxus | Taxon | 17 | 1.4 |
| Theodoxus Fluviatilis | Taxon | 19 | 1.5 |
| Theodoxus Prevostianus | Taxon | 8 | 0.3 |
| Thiara | Taxon | 9 | 0.3 |
| Thiaridae | Taxon | 15 | 0.8 |
| Thorunna | Taxon | 9 | 0.5 |
| Thuridilla | Taxon | 7 | 0.3 |
| Thuridilla Gracilis | Taxon | 5 | 0.1 |
| Thuridilla Lineolata | Taxon | 5 | 0.5 |
| Thyca | Taxon | 7 | 0.0 |
| Thyca Astericola | Taxon | 5 | 0.0 |
| Thyca Callista | Taxon | 4 | 0.1 |
| Thyca Crystallina | Taxon | 6 | 0.1 |
| Thyca Ectoconcha | Taxon | 7 | 0.0 |
| Thyca Hawaiiensis | Taxon | 4 | 0.1 |
| Thyca Lactea | Taxon | 4 | 0.1 |