| Planaria torva (Müller, 1773) | Jan 1957 | | | Binnengewässer Ostfennoskandiens. Tuusula, Tuusulanjoki (U. Virkkunen, A.L. det.) |
| Planaria torva (Müller, 1773) | May 1958 | | | Binnengewässer Ostfennoskandiens. Tuusula, Tuusulanjoki (U. Virkkunen, A.L. det.) |
| Polycelis tenuis Ijima, 1884 | 1961 or earlier | | | Tuusula, Tuusulanjärvi = Tusby träsk (A. L.) |
| Dendrocoelum lacteum (Müller, 1773) | 1961 or earlier | | | Tuusula, Tuusulanjärvi = Tusby träsk. (K. M. Levander) [Ab. map area, p. 42 of Luther 1961]. |
| Strongylostoma radiatum (Müller, 1774) | 1963 or earlier | | | Tuusula = Tusby, Tuusulanjärvi |
| Rhynchomesostoma rostratum (Müller, 1774) | 1963 or earlier | | | |
| Olisthanella truncula (Schmidt, 1858) | 1963 or earlier | | | |
| Microstomum lineare (Müller, 1773) | 1960 or earlier | | | Tuusula (Tusby) |
| Microdalyellia brevimana (Beklemischev, 1921) | Jan 16, 1917 | | | |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1955 or earlier | | | |