| Strongylostoma radiatum (Müller, 1774) | [with synonyms] | w | other taxonomic work | |
| Rhynchomesostoma rostratum (Müller, 1774) | [with synonyms] | w | other research on this sp. | Physiologie |
| Mesostoma productum (Schmidt, 1848) | [with synonyms] | w | other taxonomic work | 59, 168, Pharynxdrüsen, Physiol. |
| Mesostoma lingua (Abildgaard, 1789) | [with synonyms] | w | other research on this sp. | |
| Bothromesostoma personatum (Schmidt, 1848) | | w | other research on this sp. | |
| Bothromesostoma essenii Braun, 1885 | | w | other research on this sp. | 62, Physiol., Körnerkolben |
| Gieysztoria cuspidata (Schmidt, 1861) | [with synonyms] | w | other research on this sp. | |
| Polycystis goettei Bresslau, 1906 | | w | other research on this sp. | |
