| Allostoma austriacum (Graff, 1882) | | w | latest taxonomic authority | |
| Allostoma calyx Graff, 1911 | | w | latest taxonomic authority | |
| Allostoma capitatum (Uljanin, 1870) | [with synonyms] | w | latest taxonomic authority | |
| Cylindrostoma cyprinae (Graff, 1913) | | w | latest taxonomic authority | |
| Cylindrostoma discors Levinsen, 1879 | [with synonyms] | w | latest taxonomic authority | |
| Cylindrostoma elongatum (Levinsen, 1879) | | w | latest taxonomic authority | |
| Cylindrostoma fingalianum (Claperede, 1861) | [with synonyms] | w | latest taxonomic authority | 502-503, fig. 9 |
| Cylindrostoma longifilum Jensen, 1878 | | w | latest taxonomic authority | |
| Monoophorum tubiferum (Westblad, 1955) | [with synonyms] | w | latest taxonomic authority | |
| Cylindrostomidae Enterostomum Claparede, 1861 | | w | latest taxonomic authority | |
| Enterostomum austriacum Graff, 1882 | | w | latest taxonomic authority | |
| Enterostomum fingalianum Claparede, 1861 | | w | latest taxonomic authority | |
| Enterostomum flavibacillum Jensen, 1878 | | w | latest taxonomic authority | |
| Enterostomum mytili Sabussow, 1900 | | w | latest taxonomic authority | |
| Enterostomula austriacum Graff, 1882 | | w | latest taxonomic authority | |
| Pseudostomidae Monoophorum Bohmig, 1890 | [with synonyms] | w | other taxonomic work | |
| Monoophorum catinosum Beklemischev, 1927 | | w | latest taxonomic authority | |
| Monoophorum striatum (Graff, 1878) | [with synonyms] | w | latest taxonomic authority | |
| Monoophorum triste Graff, 1911 | | w | latest taxonomic authority | |
| Scleraulophorus cephalatus Karling, 1940 | | w | latest taxonomic authority | |
| Prolecithophora Pseudostomidae Graff, 1904-08 | [with synonyms] | w | latest taxonomic authority | |
| Pseudostomidae Pseudostomum Schmidt, 1848 | [with synonyms] | w | latest taxonomic authority | |
| Pseudostomum inerme (Hallez, 1879) | | w | latest taxonomic authority | |
| Rusalka pontica Uljanin, 1870 | | w | latest taxonomic authority | |
| Turbella inerme (Hallez, 1879) | | w | latest taxonomic authority | |
| Vortex fingalianus (2) Diesing, 1862 | | w | latest taxonomic authority | |
| Allostoma pallidum f.pusillum Westblad, 1955 | | w | primary taxonomic authority (describer) | 513-514; fig 21 |
| Cylindrostoma gracilis Westblad, 1955 | | w | primary taxonomic authority (describer) | 506, 508; fig 14 |
| Cylindrostoma lutheri Westblad, 1955 | | w | primary taxonomic authority (describer) | 504-506, fig 11, 12, 13 |
| Monoophorum tubiferum (Westblad, 1955) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Einarhelmins stilifera (Westblad, 1955) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Monoophorum stiliferum Westblad, 1955 | | w | primary taxonomic authority (describer) | 511-513, 524; fig 19, Plate III |
| Pseudostomidae Gonostomula Westblad, 1955 | | w | primary taxonomic authority (describer) | |
| Gonostomula anocelis Westblad, 1955 | | w | primary taxonomic authority (describer) | 498-499, fig 5, 6 |
| Pseudostomum gracilis Westblad, 1955 | | w | primary taxonomic authority (describer) | 496-497, fig. 4 |
| Pseudostomidae Reisingeria Westblad, 1955 | | w | primary taxonomic authority (describer) | 499 |
| Reisingeria hexoculatus Westblad, 1955 | | w | primary taxonomic authority (describer) | 499-501, figs 7, 8 |
| Fecampiida Urastomidae Westblad, 1955 | [with synonyms] | w | primary taxonomic authority (describer) | 524 |
| Prolecithophora Protomonotresidae Reisinger, 1924 | | w | other taxonomic work | |
| Cylindrostoma tubiferum Westblad, 1955 | | w | primary taxonomic authority (describer) | 509, fig 16 |
| Monoophorum striatum (Graff, 1878) | [with synonyms] | w | other taxonomic work | 511 |
| Prolecithoplana lutheri Karling, 1940 | | w | other taxonomic work | 492-493, fig. 1 |
| Pseudostomum quadrioculatum (Leuckart, 1847) | [with synonyms] | w | other taxonomic work | 493-494 |
| Pseudostomum klostermanni (Graff, 1874) | [with synonyms] | w | other taxonomic work | 494-495 |
| Pseudostomum arenarium Meixner, 1938 | | w | other taxonomic work | 496 |
| Cylindrostoma monotrochum (Graff, 1882) | [with synonyms] | w | other taxonomic work | 502, 504; fig 10. |
| Allostoma durum (Fuhrmann, 1896) | [with synonyms] | w | latest taxonomic authority | 515-516; fig. 22-23 |
| Pseudostomidae Allostoma pallidum Beneden, 1861 | [with synonyms] | w | other taxonomic work | 513; fig 20 |
| Cylindrostomidae Allostoma Beneden, 1861 | | w | other taxonomic work | |
| Enterostomula dura (Fuhrmann, 1896) | | w | other taxonomic work | 515-516 |
