| Species | Name Used |
|---|---|
| Amphiporella baltica Friedrich, 1940 | Amphiporella baltica (p. ) |
| Communoporus hagmeieri (Friedrich, 1940) | Communoporus hagmeieri (p. ) |
| Emplectonema neesii (Orsted, 1843) | Emplectonema neesii (p. ) |
| Malacobdella grossa unspecified | Malacobdella grossa (p. ) |
| Oerstedia dorsalis (Abildgaard, 1806) | Oerstedia dorsalis (p. ) |
| Proneurotes baltica Friedrich, 1940 | Proneurotes baltica (p. ) |
| Prostoma graecense (Bohmig, 1892) | Prostoma graecense (p. ) |
| Tetrastemma candidum Müller, 1774 | Tetrastemma candida (p. ) |
| Tubulanus annulatus (Montagu, 1804) | Tubulanus annulatus (p. ) |
| Tubulanus borealis Friedrich, 1936 | Tubulanus borealis (p. ) |