| Prorhynchus sphyrocephalus (de Man, 1876) | 1913 or earlier | | | |
| Dalyellia viridis (Shaw, 1791) | 1913 or earlier | | | |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1913 or earlier | | | ubiquitous, very active, prefers swimming at the surface of cold and warm, standing and flowing water. |
| Mesostoma lugdunense de Man, 1875 | 1874 or earlier | | | pools. |
| Strongylostoma radiatum (Müller, 1774) | 1913 or earlier | | | ponds and lakes. |
| Rhynchomesostoma rostratum (Müller, 1774) | 1913 or earlier | | | |
| Typhloplana viridata (Abildgaard, 1789) | 1913 or earlier | | | moors and lakes. |
| Mesostoma ehrenbergii (Focke, 1836) | 1913 or earlier | | | |
| Mesostoma tetragonum (Müller, 1774) | 1913 or earlier | | | |
| Bothromesostoma personatum (Schmidt, 1848) | 1913 or earlier | | | |
| Stenostomum unicolor Schmidt, 1848 | 1967 | | | from localities in the Netherlands. |
| Rhynchomesostoma rostratum (Müller, 1774) | 1882 or earlier | | | Maitland n. Graff. |
| Mesostoma tetragonum (Müller, 1774) | 1882 or earlier | | | Holland (Pallas s. Graff 1882) |
| Microplana terrestris (Müller, 1773) | 1962 or earlier | | | |
| Marionfyfea adventor Jones & Sluys, 2016 | | | | Established in gardens |
| Caenoplana variegata (Fletcher & Hamilton, 1888) | | | | Established in gardens |
| Parakontikia ventrolineata (Dendy, 1892) | | | | Established in gardens |
| Bipalium kewense Moseley, 1878 | | | | found occasionally |
| Caenoplana coerulea Moseley, 1877 | 2018 | | | heated greenhouse |
| Caenoplana micholitzi (Graff, 1899) | 2020 or earlier | | | |