| Microstomum punctatum Dorner, 1902 | 1902 or earlier |  |  | Linkener lake in East Prussia. | 
| Dalyellia expedita Hofsten N, 1907 | 1913 or earlier |  |  |  | 
| Dalyellia triquetra (Fuhrmann, 1894) | 1913 or earlier |  |  |  | 
| Phaenocora typhlops (Vejdovsky, 1880) | 1913 or earlier |  |  | pools. | 
| Phaenocora vejdovskyi (Vejdovsky, 1895) | 1913 or earlier |  |  | pools. | 
| Typhloplana minima (Fuhrmann, 1894) | 1913 or earlier |  |  |  | 
| Castrada (Castrada) lanceola (Braun, 1885) | 1913 or earlier |  |  |  | 
| Castrada (Castrada) hofmanni Braun, 1885 | 1913 or earlier |  |  |  | 
| Castrada (Castrada) viridis Volz, 1898 | 1913 or earlier |  |  |  | 
| Mesostoma chromobactrum Braun, 1885 | 1913 or earlier |  |  | pools | 
| Bothromesostoma essenii Braun, 1885 | 1909 or earlier |  |  |  | 
| Castrada (Castrada) agilis Dorner, 1902 | 1902 or earlier |  |  |  | 
| Castrella (Castrella) serotina Dorner, 1902 | 1902 or earlier |  |  |  | 
| Mesostoma exigua Dorner, 1902 | 1902 or earlier |  |  |  | 
| Microstomum inerme Zacharias, 1894 | 1902 or earlier |  |  |  | 
| Microstomum giganteum Hallez, 1878 | 1902 or earlier |  |  |  | 
| Microstomum punctatum Dorner, 1902 | 1902 or earlier |  |  |  | 
| Plagiostomum lemani Forel & Du Plessis, 1874 | 1902 or earlier |  |  |  | 
| Vortex pictus Schmidt, 1848 | 1902 or earlier |  |  |  | 
| Olisthanella obtusa (Schultze, 1851) | 1902 or earlier |  |  | Ostpreussen:  Gerichsee. | 
| Typhloplana viridata (Abildgaard, 1789) | 1902 or earlier |  |  | Ostpreussen. | 
| Opistomum pallidum Schmidt, 1848 | 1902 or earlier |  |  | Ostpreussen. | 
| Castrada (Castrada) lanceola (Braun, 1885) | 1902 or earlier |  |  | Ostpreussen. | 
| Phaenocora typhlops (Vejdovsky, 1880) | 1902 or earlier |  |  |  | 
| Microdalyellia armigera (Schmidt, 1862) | 1902 or earlier |  |  |  | 
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1902 or earlier |  |  |  | 
| Phaenocora gracilis (Vejdovsky, 1895) | 1901 |  |  |  |