| Mesostoma rhynchotum Braun, 1885 | | w | other taxonomic work | 102-105 |
| Olisthanella nassonoffii (Graff, 1882) | | w | latest taxonomic authority | |
| Phaenocora baltica (Braun, 1885) | [with synonyms] | w | other taxonomic work | 134-136 |
| Microstomum album (Attems, 1897) | [with synonyms] | w | other taxonomic work | 56 |
| Gyrator notops Duges, 1828 | | w | latest taxonomic authority | |
| Vortex penicillus Braun, 1885 | | w | latest taxonomic authority | |
| Mesostoma lingua lacustris Brinkmann, 1906 | | w | primary taxonomic authority (describer) | |
| Mesostoma lingua typica Brinkmann, 1906 | | w | primary taxonomic authority (describer) | |
| Alaurina composita Metschnikoff, 1861 | | w | other taxonomic work | 62 |
| Astrotorhynchus bifidus regulatus Graff, 1905 | | w | other taxonomic work | 109, t. 1, f. 22-24 |
| Castrada (Castrada) armata (Fuhrmann, 1894) | [with synonyms] | w | other taxonomic work | 89, t. 3, f. 17, 18 |
| Mesostoma lingua (Abildgaard, 1789) | [with synonyms] | w | other taxonomic work | 93, t. 4, f. 1-4 |
| Mesostoma craci Schmidt, 1858 | [with synonyms] | w | other taxonomic work | 96, rf. 8 |
| Mesostoma nigrirostrum Braun, 1885 | | w | other taxonomic work | 97, t. 4, f. 5-14; tf. 9, 10 |
| Bothromesostoma personatum (Schmidt, 1848) | [with synonyms] | w | other taxonomic work | 105, tf. 13, 14 |
| Bothromesostoma essenii Braun, 1885 | | w | other taxonomic work | 108 |
| Bothromesostoma lineatum Braun, 1885 | | w | other taxonomic work | 108 |
| Acrorhynchus caledonicus (Claperede, 1861) | | w | other taxonomic work | 113, t. 4, f. 18,19 |
| Polycystis naegelii Kölliker, 1845 | [with synonyms] | w | other taxonomic work | 114, t. 4, f. 22; tf. 15, 16 |
| Polycystis crocea (Fabricius, 1826) | | w | other taxonomic work | 116, t. 4, f. 20, 21; tf. 15, 17 |
| Phonorhynchus helgolandicus (Metschnikow, 1865) | [with synonyms] | w | other taxonomic work | 118, tf. 15 |
| Opistomum pallidum Schmidt, 1848 | [with synonyms] | w | other taxonomic work | 127-133 |
| Olisthanella truncula (Schmidt, 1858) | [with synonyms] | w | other taxonomic work | 74-81 |
| Vortex ruber Fuhrmann, 1894 | | w | other research on this sp. | 124-126 |
| Phaenocora megalops (Duges, 1830) | [with synonyms] | w | other research on this sp. | 134 |
