| Macrostomum viride (1) Beneden E, 1870 | 1913 or earlier | | | |
| Macrostomum orthostylum Braun, 1885 | prior to 1949 | 17-30 m | | |
| Macrostomum tuba Graff, 1882 | prior to 1949 | 1.0-56.0 m | | |
| Bresslauilla relicta Reisinger, 1929 | 1951 or earlier | 8-18 m | | |
| Polycelis cornuta Johnston, 1822 | 1950 or earlier | | | |
| Planaria alpina (Dana, 1766) | 1950 or earlier | | | |
| Dendrocoelum lacteum verbanence Benazzi, 1945 | 1945 or earlier | | | |
| Gieysztoria diadema (Hofsten N, 1907) | 1932 or earlier | 15 m | | Lago Maggiore, Lago di Como u. Lago di Garda (Steinböck). |
| Planaria torva (Müller, 1773) | 1959 or earlier | | | Lago Maggiore. |
| Phaenocora rufodorsata (Sekera, 1904) | 1949 or earlier | | | Italien, Lago Maggiorre u. Lago di Como. |
| Castrada (Castrada) intermedia (Volz, 1898) | 1949 or earlier | | | Italien: Lago Maggiore u L. di Como |
| Castrada (Castrada) viridis Volz, 1898 | 1951 or earlier | | | Italien |
| Castrada (Castrada) spinulosa Hofsten N, 1907 | 1949 or earlier | | | Lago Maggiore u. Lago di Como |
| Strongylostoma radiatum (Müller, 1774) | 1949 or earlier | | | |
| Strongylostoma elongatum elongatum Hofsten N, 1907 | 1949 and earlier | | | |
| Rhynchomesostoma rostratum (Müller, 1774) | 1949 or earlier | | | |
| Mesostoma ehrenbergii (Focke, 1836) | 1932 or earlier | | | |
| Mesostoma productum (Schmidt, 1848) | 1949 or earlier | | | |
| Mesostoma lingua (Abildgaard, 1789) | 1949 or earlier | 18-56 m | | Lago Maggiore |
| Phaenocora unipunctata (Ørsted, 1843) | 1950 or earlier | | | |
| Phaenocora unipunctata (Ørsted, 1843) | 1949 or earlier | | | |
| Microdalyellia armigera (Schmidt, 1862) | 1949 or earlier | 15 - 20 m | | |
| Gieysztoria triquetra (Fuhrmann, 1894) | 1949 or earlier | | | |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1949 or earlier | | | |