| Brachyposthia cuticulata (2) (Brandtner, 1934) | | - | latest taxonomic authority | |
| Plagiostomum arcticum Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum chromogastrum Graff, 1890 | [with synonyms] | w | latest taxonomic authority | |
| Plagiostomum koreni Jensen, 1878 | [with synonyms] | w | latest taxonomic authority | |
| Plagiostomum makropharynx Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum vittatum (Frey & Leuckart, 1847) | [with synonyms] | w | other taxonomic work | |
| Plagiostomum vorax Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum whitmani Graff, 1911 | [with synonyms] | w | latest taxonomic authority | |
| Plicastoma cuticulata (Brandtner, 1934) | | w | latest taxonomic authority | |
| Vorticeros auriculatum (Müller, 1784) | [with synonyms] | w | latest taxonomic authority | |
| Multipeniata (Multipeniata) birmanse (Westblad, 1956) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomum birmanse Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| Plagiostomum cuticulata scandinavica (Westblad, 1956) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomum filicauda Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| Plagiostomum girardi girardi Westblad, 1956 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomum nostrum Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| Plagiostomum striatum Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| incertae sedis Plagiostomula Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| Plagiostomula vivipara (l) Westblad, 1956 | | w | primary taxonomic authority (describer) | |
| Plagiostomula vivipara (2) Westblad, 1956 | | - | primary taxonomic authority (describer) | |
| Hydrolimax grisea Haldeman, 1843 | [with synonyms] | w | other taxonomic work | 131 |
| Plagiostomum brandtneri Kulinitch, 1980 | | w | other taxonomic work | 140 |
| Plagiostomum anocelis Brandtner, 1934 | | w | other taxonomic work | 140 (but really P. brandtneri {15479}) |
