| Convoluta borealis Sabussow, 1900 | [with synonyms] | w | primary taxonomic authority (describer) | 3 |
| Anoplodium chirodotae Sabussow, 1900 | | w | primary taxonomic authority (describer) | 29, 38, 188 |
| Mesostoma uljanini Sabussow, 1900 | | w | primary taxonomic authority (describer) | |
| Monocelis viridirostris Sabussow, 1900 | [with synonyms] | w | primary taxonomic authority (describer) | 46, 190 |
| Procerodes solowetzkiana Sabussow, 1900 | | w | primary taxonomic authority (describer) | 49, 191 |
| Monotus viridirostris Sabussow, 1900 | | w | primary taxonomic authority (describer) | |
| Mesostoma craci Schmidt, 1858 | [with synonyms] | w | other taxonomic work | 24, 184 |
| Enterostomum fingalianum Claparede, 1861 | | w | other taxonomic work | 42, 189 |
| Otocelis maris-alba (Sabussow, 1899) | | w | other taxonomic work | 6, 56, 178 |
| Bohmigia maris-alba Sabussow, 1899 | | w | other taxonomic work | 6, 56, 178 |
| Convoluta flavibacillum Jensen, 1878 | | w | other taxonomic work | 9, 178 |
| Amphiscolops virescens (Örsted AS, 1845) | | w | other taxonomic work | 7, 178 |
| Stenostomum leucops (Duges, 1828) | [with synonyms] | w | other taxonomic work | 16, 182 |
| Microstomum lineare (Müller, 1773) | [with synonyms] | w | other taxonomic work | 14, 180 |
| Provortex balticus (Schultze, 1851) | [with synonyms] | w | other taxonomic work | 34, 187 |
| Provortex affinis (Jensen, 1878) | [with synonyms] | w | other taxonomic work | 34, 187 |
| Dalyellia picta (Schmidt, 1848) | | w | other taxonomic work | 37, 188 |
| Castrella (Castrella) truncata (Abildgaard, 1789) | [with synonyms] | w | other taxonomic work | 36, 187 |
| Maehrenthalia agilis (Levinsen, 1879) | [with synonyms] | w | other taxonomic work | 21, 183 |
| Byrsophlebs graffi Jensen, 1878 | | w | other taxonomic work | 18, 183 |
| Astrotorhynchus bifidus (McIntosh, 1874) | [with synonyms] | w | other taxonomic work | 28, 186 |
| Proxenetes flabellifer Jensen, 1878 | [with synonyms] | w | other taxonomic work | 19, 183 |
| Proxenetes cochlear Graff, 1882 | | w | other taxonomic work | 20, 183 |
| Promesostoma agile (Levinsen, 1879) | | w | other taxonomic work | 21, 183 |
| Typhloplana viridata (Abildgaard, 1789) | [with synonyms] | w | other taxonomic work | 26, 186 |
| Mesostoma productum (Schmidt, 1848) | [with synonyms] | w | other taxonomic work | 23, 183 |
| Mesostoma lingua (Abildgaard, 1789) | [with synonyms] | w | other taxonomic work | 23, 183 |
| Bothromesostoma essenii Braun, 1885 | | w | other taxonomic work | 24, 184 |
| Polycystis crocea (Fabricius, 1826) | | w | other taxonomic work | 30, 186 |
| Gyratrix hermaphroditus hermaphroditus Ehrenberg, 1831 | | w | other taxonomic work | 31, 186 |
| Provortex hispidus Graff, 1882 | [with synonyms] | w | other taxonomic work | 35, 187 |
| Vortex sp. (Sabussow, 1897) | | - | other taxonomic work | 38, 188 |
| Urastoma cyprinae (Graff, 1882) | [with synonyms] | w | other taxonomic work | 41, 189 |
| Cylindrostoma fingalianum (Claperede, 1861) | [with synonyms] | w | other taxonomic work | 42, 189 |
| Monocelis lineata (Müller, 1773) | [with synonyms] | w | other taxonomic work | 45, 190 |
| Procerodes lobatus solowetzkianus (Sabussow) Steinbock, 1931 | | w | other taxonomic work | 49, 191 |
| Uteriporus vulgaris Bergendal, 1890 | [with synonyms] | w | other taxonomic work | 52, 193 |