| Castrada (Castrada) neocomensis Volz, 1898 | 1898 or earlier | | | near lake. |
| Microstomum giganteum Hallez, 1878 | 1901 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Macrostomum appendiculatum Fabricius, 1826 | 1906 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Prorhynchus stagnalis Schultze, 1851 | 1906 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Dalyellia rubra (Fuhrmann, 1894) | 1908 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Dalyellia virgulifera (Plotnikow, 1906) | 1906 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1901 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. Sümpfe w. davon. |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1906 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. Sümpfe w. davon. |
| Strongylostoma radiatum (Müller, 1774) | 1906 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Typhloplana viridata (Abildgaard, 1789) | 1901 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Typhloplana viridata (Abildgaard, 1789) | 1911 or earlier | | | Loclat (Lac de St-Blaise). |
| Gyratrix hermaphroditus Ehrenberg, 1831 | 1901 or earlier | | | Loclat (Lac de St-Blaise) bei Neuchatel. |
| Gyratrix hermaphroditus Ehrenberg, 1831 | 1906 or earlier | | | Loclat (Lac de St-Blaise). |
| Gieysztoria rubra (Fuhrmann, 1894) | 1912 or earlier | | | Lac St. Blaise. |