| Stenostomum leucops (Duges, 1828) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Stenostomum leucops (Duges, 1828) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Stenostomum unicolor Schmidt, 1848 | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Microstomum lineare (Müller, 1773) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Macrostomum distinguendum Papi, 1951 | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Macrostomum rostratum Papi, 1951 | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Prorhynchus stagnalis Schultze, 1851 | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Microdalyellia brevimana (Beklemischev, 1921) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Castrella (Castrella) truncata (Abildgaard, 1789) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Mesostoma lingua (Abildgaard, 1789) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |
| Bothromesostoma personatum (Schmidt, 1848) | May 1966 - Feb 1967 | littoral | | calcium rich lake (33.6 mg/l). |