Macrostomum viride (1) Beneden E, 1870 | prior to 1894 | | | found throughout summer in streams. |
Microstomum lineare (Müller, 1773) | prior to 1894 | | | |
Microstomum canum Fuhrmann, 1894 | prior to 1894 | | | found all summer. |
Stenostomum leucops (Duges, 1828) | prior to 1894 | | | found in all the waters. |
Prorhynchus stagnalis Schultze, 1851 | Dec prior to 1894 | | | rare, one sexually mature specimen. |
Dugesia gonocephala (Duges, 1830) | prior to 1894 | | | |
Macrostomum viride (1) Beneden E, 1870 | 1894 or earlier | | | Bach des Augustinerholzes bei Basel. |
Prorhynchus stagnalis Schultze, 1851 | 1894 or earlier | | | Umgebung von Basel (Bach des Augustinerholzes). |