| Pseudostomidae Enterostomula Reisinger, 1926 | [with synonyms] | w | other taxonomic work | |
| Baicalellia beauchampi (Ax, 1956) | [with synonyms] | w | primary taxonomic authority (describer) | 89-103, figs. 22 |
| Vejdovskya helictos Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Rogneda westbladi westbladi Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Byrsophlebs dubia (Ax, 1956) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Maehrenthalia dubia Ax, 1956 | | w | primary taxonomic authority (describer) | 136-139, figs. 34 A-D |
| Promesostoma gallicum Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Opistomum immigrans Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Macrostomum longistyliferum Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Macrostomum mediterraneum Ax, 1956 | | w | primary taxonomic authority (describer) | 23-27 |
| Macrostomum spirale Ax, 1956 | | w | primary taxonomic authority (describer) | |
| Nematoplana sp. Ax, 1956 | | - | primary taxonomic authority (describer) | |
| Minona baltica Karling & Kinnander, 1953 | | w | other taxonomic work | 82 |
| Proxenetes westbladi Luther, 1943 | | w | other taxonomic work | 116-118, f. 29 |
| Proxenetes plebeius Beklemischev, 1927 | | w | other taxonomic work | 114-116, f. 28 |
| Pseudograffilla arenicola Meixner, 1938 | | w | other taxonomic work | 106-108, fig. 24 |
| Bresslauilla relicta Reisinger, 1929 | | w | other taxonomic work | 104-106, fig. 23 |
| Vejdovskya pellucida (Schultze, 1851) | [with synonyms] | w | other taxonomic work | 83, Fig. 19 |
| Vejdovskya ignava Ax, 1951 | | w | other taxonomic work | 84-86, fig. 20 |
| Brinkmanniella macrostomoides Luther, 1948 | | w | other taxonomic work | 110-112, fig. 26 |
| Tvaerminnea karlingi Luther, 1943 | | w | other taxonomic work | 112-114, fig. 27 |
| Promesostoma cochleare Karling, 1935 | | w | other research on this sp. | 119-121, fig. 31 |
| Pseudosyrtis subterranea (Ax, 1951) | [with synonyms] | w | other taxonomic work | |
| Canetellia beauchampi Ax, 1956 | | w | primary taxonomic authority (describer) | 89-103, figs. 22 |
| Canetellia beauchampi Ax, 1956 | | w | latest taxonomic authority | 89-103, figs. 22 |
| Tamanawas helictos (Ax, 1956) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Vejdovskya helictos Ax, 1956 | | w | latest taxonomic authority | |
| Cylindrostomidae Allostoma Beneden, 1861 | | w | other taxonomic work | |
| Promesostoma bilineatum Pereyaslawzewa, 1892 | | w | other taxonomic work | |
