gastéropodes
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Scutellastra Longicosta | Taxon | 7 | 0.1 |
| Scutellastra | Taxon | 7 | 0.1 |
| Schilderia Achatidea | Taxon | 8 | 0.5 |
| Scaphandridae | Taxon | 6 | 0.3 |
| Scaphander | Taxon | 8 | 0.2 |
| Scalptia Scalariformis | Taxon | 6 | 0.4 |
| Scalptia Obliquata | Taxon | 6 | 0.4 |
| Scalptia Mercadoi | Taxon | 5 | 0.0 |
| Scalenostoma | Taxon | 6 | 0.4 |
| Sandalia | Taxon | 6 | 0.1 |
| Samlidae | Taxon | 6 | 0.1 |
| Sagaminopteron | Taxon | 5 | 0.3 |
| Sacoglossa | Taxon | 27 | 2.3 |
| Sabinella | Taxon | 7 | 0.0 |
| Sabatia | Taxon | 6 | 0.4 |
| Runcinida | Taxon | 3 | 0.0 |
| Rumina | Taxon | 6 | 0.5 |
| Roxania | Taxon | 8 | 0.1 |
| Rotaovula | Taxon | 4 | 0.1 |
| Rostellariidae | Taxon | 11 | 0.0 |
| Rostellariella | Taxon | 7 | 0.2 |
| Rochia Nilotica | Taxon | 4 | 0.0 |
| Rochia Conus | Taxon | 3 | 0.0 |
| Roboastra Gracilis | Taxon | 7 | 0.4 |
| Roboastra | Taxon | 6 | 0.4 |
| Robillardia | Taxon | 4 | 0.0 |
| Rissooidea | Taxon | 10 | 0.2 |
| Rissoinidae | Taxon | 5 | 0.3 |
| Rissoidae | Taxon | 14 | 0.2 |
| Rissoa Parva | Taxon | 8 | 0.0 |
| Rissoa Membranacea | Taxon | 9 | 0.2 |
| Rissoa Lilacina | Taxon | 9 | 0.0 |
| Rissoa Guerinii | Taxon | 10 | 0.0 |
| Rissoa | Taxon | 11 | 0.1 |
| Rhytidoidea | Taxon | 6 | 0.0 |
| Rhodopemorpha | Taxon | 3 | 0.1 |
| Rhinoclavis Aspera | Taxon | 7 | 0.3 |
| Retusidae | Taxon | 10 | 0.1 |
| Reticulidia Fungia | Taxon | 5 | 0.4 |
| Reticulidia | Taxon | 8 | 0.2 |
| Renea Bourguignatiana | Taxon | 10 | 0.0 |
| Reishia | Taxon | 6 | 0.2 |
| Rathouisia Leonina | Taxon | 3 | 0.0 |
| Rathouisia | Taxon | 2 | 0.0 |
| Rastodentidae | Taxon | 7 | 0.1 |
| Rastodens | Taxon | 5 | 0.1 |
| Raphitomidae | Taxon | 10 | 0.4 |
| Raphitoma Linearis | Taxon | 10 | 0.1 |
| Raphitoma | Taxon | 15 | 0.1 |
| Rapaninae | Taxon | 6 | 0.2 |