| Allostoma graffi (de Beauchamp, 1913) | | w | latest taxonomic authority | |
| Polycystis tripalmata Beklemischev, 1927 | | w | latest taxonomic authority | |
| Rogneda tripalmata (Beklemischev, 1927) | [with synonyms] | w | other taxonomic work | |
| Byrsophlebs geniculata Beklemischev, 1927 | | w | latest taxonomic authority | |
| Promesostoma ensifer (Uljanin, 1870) | | w | other taxonomic work | |
| Paramesostoma pachydermum (Pereyaslawzewa, 1892) | | w | latest taxonomic authority | |
| Trigonostomum mirabile (Pereyaslawzewa, 1892) | [with synonyms] | w | other taxonomic work | |
| Trigonostomum venenosum (Uljanin, 1870) | [with synonyms] | w | other taxonomic work | |
| Mesostomum ensifer Uljanin, 1870 | | w | latest taxonomic authority | |
| Thalassoplanina geniculata (Beklemischev, 1927) | [with synonyms] | w | other taxonomic work | |
| Macrostomum mediterraneum Ax, 1956 | | w | latest taxonomic authority | 66-67 |
| Pseudomonocelis cetinae Meixner, 1943 | | w | other taxonomic work | |
| Minona insularis (Meixner, 1928) | | w | latest taxonomic authority | |
| Listia paradoxa Ax, 1959 | | w | primary taxonomic authority (describer) | 128 |
| Isodiametridae Baltalimania Ax, 1959 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Baltalimania kosswigi Ax, 1959 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Convoluta fulvomaculata Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Convoluta subsalina Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Haplogonaria arenaria (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Mecynostomum arenarium Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Notocelis subsalina (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Otocelis westbladi Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Taurida fulvomaculata (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Kirgisellinae Selimia Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Selimia similis Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Selimia vivida Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Cicerina eucentrota Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Axiutelga aculeata (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Itaipusa aculeata (Ax, 1959) | | w | primary taxonomic authority (describer) | |
| Utelga aculeata Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Phonorhynchus pernix Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Rogneda polyrhabdota Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Diascorhynchus caligatus Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Baltoplana valkanovi Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Cheliplana euxeinos Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Cheliplana orthocirra Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Proschizorhynchus tricingulatus Ax, 1959 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Byrsophlebs simplex (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Byrsophlebs uncinata (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Maehrenthalia sp. Ax, 1959 | | - | primary taxonomic authority (describer) | |
| Maehrenthalia simplex Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Maehrenthalia uncinata Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Paramesostoma helgolandicum Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Typhloplaninae Thalassoplanina Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Macrostomum ermini Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Archiloa endostyla (Ax, 1959) | | w | primary taxonomic authority (describer) | |
| Archiloinae Archilina Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Archilina endostyla Ax, 1959 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Duplominona istanbulensis (Ax, 1959) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Minona istanbulensis Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Otoplana bosporana Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Postbursoplana propontica Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Polycystididae Listia Ax, 1959 | | w | primary taxonomic authority (describer) | 128 |
| Postbursoplana pontica Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Mecynostomum sp. Ax, 1959 | | - | primary taxonomic authority (describer) | |
| Convolutidae Baltalimania Ax, 1959 | | - | primary taxonomic authority (describer) | |
| Proxenetes plebeius Beklemischev, 1927 | | w | other taxonomic work | 100 |
| Messoplana falcata (Ax, 1953) | | w | other taxonomic work | 100 |
| Proxenetes lictor Beklemischev, 1927 | | w | other taxonomic work | 98-99 |
| Vejdovskya pellucida (Schultze, 1851) | [with synonyms] | w | other taxonomic work | 166 |
| Brinkmanniella macrostomoides Luther, 1948 | | w | other research on this sp. | 149 |
| Tvaerminnea karlingi Luther, 1943 | | w | other research on this sp. | 99, 152, 154, 166, 167 |
| Beklemischeviella contorta (Beklemischev, 1927) | [with synonyms] | w | other taxonomic work | 172-173, 178 |
| Proschizorhynchus gullmarensis tricingulatus Ax, 1959 | | w | primary taxonomic authority (describer) | |
| Proschizorhynchus gullmarensis tricingulatus Ax, 1959 | | w | latest taxonomic authority | |
| Thalassoplanella collaris Luther, 1946 | | w | other research on this sp. | |
| Castrada (Castrada) subsalsa Luther, 1946 | | w | other research on this sp. | 174 |
| Phaenocora subsalina Luther, 1921 | | w | other taxonomic work | 174 |
| Phonorhynchoides flagellatus Beklemischev, 1927 | | w | other taxonomic work | |
| Phonorhynchus pearsei Ferguson, Stirewalt & Kepner, 1940 | | w | other taxonomic work | |
| Polycystis intubata Graff, 1905 | [with synonyms] | w | other taxonomic work | |
| Pontaralia relicta (Beklemischev, 1927) | [with synonyms] | w | other taxonomic work | |
| Progyrator mamertinus (Graff, 1874) | [with synonyms] | w | other research on this sp. | |
| Promesostoma bilineatum Pereyaslawzewa, 1892 | | w | other taxonomic work | |
| Pseudomonocelis ophiocephala (Schmidt, 1861) | [with synonyms] | w | other taxonomic work | |
| Rogneda capulata Karling, 1953 | | w | other taxonomic work | |
| Rogneda steueri (Steinböck, 1933) | [with synonyms] | w | other taxonomic work | |
| Macrostomidae Inframacrostomum Ferguson, 1954 | | w | other taxonomic work | 66 |
| Macrostomidae Archimacrostomum Ferguson, 1954 | | w | other taxonomic work | 66 |
