Achatinina
Family: Achatinidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Chilonopsis aurisvulpina | Holten, 1802 | ? | St. Helena | Extinct? | Access | |
| Chilonopsis blofeldi | Forbes, 1852 | Blofeld’s St. Helena awl snail | ? | St. Helena | Extinct | Access |
| Chilonopsis exulatus | (Benson, 1850) | Banished St. Helena awl snail | ? | St. Helena | Extinct | Access |
| Chilonopsis helena | Quoy & Gaimard, 1833 | St. Helena awl snail | ? | St. Helena | Extinct | Access |
| Chilonopsis melanoides | (Wollaston, 1892) | Melania-like St. Helena awl snail | ? | Saint Helena, Ascension and Tristan da Cunha | Extinct | Access |
| Chilonopsis nonpareil | (Perry, 1811) | Great St. Helena awl snail | pre-1875 | St. Helena | Extinct | Access |
| Chilonopsis subplicatus | Sowerby, 1844 | Plicated awl snail | ? | St. Helena | Extinct | Access |
| Chilonopsis subtruncatus | Smith, 1892 | Truncated awl snail | ? | St. Helena | Extinct | Access |
| Chilonopsis turtoni | Smith, 1892 | Turton’s St. Helena awl snail | ? | St Helena, Ascension and Tristan da Cunha | Extinct | Access |
| Obeliscus agassizi | Pilsbry, 1906 | (rediscovered) | Brazil | Rediscovered | Access | |
| Rectobelus levogyrus | Simone & D'ávila, 2019 | c.4,500ya | Rondônia, Brazil | Missing | Access | |
| Vegrandinia trindadensis | Breure and Coelho, 1976 | ? | Trindade Island, Brazil | Missing | Access |
Family: Ferussaciidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Ceciliodes eulima | (Lowe, 1855) | (rediscovered) | Madeiran Archipelago | Rediscovered | Access |
Family: Streptaxidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Campolaemus perexilis | (Smith, 1892) | St. Helena whorl snail | ? | St. Helena | Extinct | Access |
| Conturbatia crenata | Gerlach, 2001 | 2000 | Fregate island, Seychelles | Missing | Access | |
| †Gibbus lyonetianus | Pallas, 1780 | ? | Mauritius | Extinct | Access | |
| Glabrennea silhouettensis | (Verdcourt, 1994) | 1991 or 2010 | summit of Mt. Dauban, Silhouette island, Seychelles | Missing | Access | |
| Glabrennea thomassetti | Sykes, 1909 | - | - | Mahé, Seychelles | Rediscovered | Access |
| Gonidomus newtoni | (Adams, 1867) | ? | Mauritius | Extinct | Access | |
| Gonospira adamsiana | Nevill, 1871 | ? | Mascarene Islands? | Missing | Access | |
| Gonospira cirneensis | Madge, 1946 | ? | Mauritius | Missing | Access | |
| Gonospira helodes | (Morelet, 1875) | ? | Mauritius | Missing | Access | |
| Gonospira majuscula | (Morelet, 1878) | ? | Mauritius | Missing | Access | |
| Gonospira mondraini | (H. Adams, 1868) | ? | Mascarene Islands? | Missing | Access | |
| Gonospira nevilli | Adams, 1867 | ? | Mauritius | Extinct | Access | |
| Gulella argoudi | Griffiths, 2001 | ? | Réunion | Missing? | Access | |
| Gulella mamellensis | Griffiths, 2000 | ? | Mascarene Islands | Missing? | Access | |
| Gulella mayottensis | Connolly, 1925 | ? | Mayotte | Extinct | Access | |
| Imperturbatia violescens | (Martens, 1898) | ? | Seychelles | Missing? | Access | |
|
Juventigulella saidii |
Rowson et al., 2024 | - | Late Pleistocene | Kenya | Missing | Access |
| Microstrophia abnormala | Griffiths & Florens, 2004 | ? | Mauritius | Missing | Access | |
| Microstrophia baideri | Griffiths & Florens, 2004 | subfossil | Mauritius | Missing | Access | |
| Plicadomus newtoni | (H. Adams, 1867) | ? | Mascarene Islands | Missing? | Access |