Opiliones/Phalangida (Harvestmen)
Family: Biantidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Biantes parvulus | (Hirst, 1911) | - | 1972 | Mahé, Praslin & Silhouette islands, Seychelles | Extinct | Access |
Family: Cosmetidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Eulibitia ectroxantha | (Mello-Leitão, 1941) | (rediscovered) | Colombia | Rediscovered | Access |
Family: Epedanidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Lobonychium palpiplus | Roewer, 1938 | - | (rediscovered) | Borneo (Indonesian & Malaysian) | Rediscovered | Access |
Family: Gonyleptidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Paraluederwaldtia bituberculata | (Mello-Leitão, 1922) | - | (rediscovered) | Atlantic province, Rio de Janeiro, Brazil | Rediscovered | Access |
Family: Otilioleptidae
—No subordinate taxa
Family: Phalangodidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Hirstienus nanus | Hirst, 1913 | - | 1908 | Mahé, Seychelles | Extinct | Access |
Family: Podoctidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Centrobunus braueri | Loman, 1902 | - | 1894 | Mahé, Seychelles | Extinct | Access |
| Holozoster ovalis |
Loman, 1902 |
- | 1972 | Mahé, Seychelles | Missing | Access |
| Ibalonius lomani | Hirst, 1911 | - | 1972 | Silhouette, Seychelles | Missing | Access |
|
Peromona erinacea |
Roewer, 1949 | Spiny harvestman | 1892 | Mahé, Seychelles | Extinct | Access |
| Sitalcicus gardineri | (Hirst, 1911) | - | 1908 | Mahé, Seychelles | Extinct | Access |
| Sitalcicus incertus | Rambla, 1984 "1983" | - | 1972 | Silhouette, Seychelles | Extinct | Access |
Family: Samoidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Mitraceras crassipalpum | Loman, 1902 | - | 1972 | Mahé, Seychelles | Extinct | Access |
Family: Triaenonychidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Prasmiola unica | Forster, 1954 | - | (rediscovered) | Days Bay, Wellington, North Island, New Zealand | Rediscovered | Access |
Family: Zalmoxidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Metazalmoxis ferruginea | Roewer, 1912 | - | 1892 | Mahé, Seychelles | Extinct | Access |