| Mecynostomum pulchellum (Uljanin, 1870) | | w | latest taxonomic authority | |
| Prolecithophora Multipeniatidae Karling, 1940 | | w | latest taxonomic authority | |
| Acmostomum obscurum (An der Lan, 1936) | [with synonyms] | w | latest taxonomic authority | |
| Haploophorum caudatum (Levinsen, 1879) | | w | latest taxonomic authority | |
| Haploophorum groenlandicum (Levinsen, 1879) | | w | latest taxonomic authority | |
| Haploophorum obscurum (An der Lan, 1936) | | w | latest taxonomic authority | |
| Haploophorum reticulatum (Bohmig, 1890) | | w | latest taxonomic authority | |
| Haploophorum siphonophorum (An der Lan, 1936) | | w | latest taxonomic authority | |
| Plagiostomum chinoecetis Brandtner, 1934 | [with synonyms] | w | latest taxonomic authority | |
| Plagiostomum dioicum (Mecznikow, 1865) | | w | latest taxonomic authority | |
| Plagiostomum evelinae Marcus, 1946 | | w | latest taxonomic authority | |
| Plagiostomum flavum Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum makroposthia Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum paradoxum An der Lan, 1936 | | w | latest taxonomic authority | |
| Plagiostomum petrophilum Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum philippinense Graff, 1882 | | w | latest taxonomic authority | |
| Plagiostomum porsildi Brandtner, 1934 | | w | latest taxonomic authority | |
| Plagiostomum pseudomaculatum (Gamble, 1893) | | w | latest taxonomic authority | |
| Plagiostomum rovignense (Steinbock, 1933) | [with synonyms] | w | latest taxonomic authority | |
| Plagiostomum sagitta (Uljanin, 1870) | [with synonyms] | w | latest taxonomic authority | |
| Plagiostomum stellatum Graff, 1911 | | w | latest taxonomic authority | |
| Plagiostomum sulphureum Graff, 1882 | | w | latest taxonomic authority | |
| Trigonostomum coronatum (Graff, 1882) | [with synonyms] | w | other taxonomic work | |
| Girardia titicacana (Hyman, 1939) | [with synonyms] | w | latest taxonomic authority | |
| Convolutidae Monochoerus Lőhner & Micoletzky, 1911 | | - | other taxonomic work | |
| incertae sedis Pseudogyratrix Meixner, 1938 | | w | latest taxonomic authority | |
| Convoluta vexillaria Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Isodiametra vexillaria (Marcus, 1948) | | w | primary taxonomic authority (describer) | |
| Eumecynostomum evelinae (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Mecynostomum evelinae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum evelinae (Marcus, 1948) | | w | primary taxonomic authority (describer) | |
| Allostoma evelinae (Marcus, 1948) | | w | primary taxonomic authority (describer) | |
| Enterostomula evelinae Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomidae Haploophorum Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Haploophorum elachisterum Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum acoluthum Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum autectum Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum chionoecetis Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum elachisterum (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomum haploposthia Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum mirabile Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Plagiostomum nonatoi Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Polycystidinae Paulodora Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Paulodora fredelyna (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Paulodora matarazzoi Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Polycystis gabriellae (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Polycystis matarazzoi (Marcus, 1948) | | w | primary taxonomic authority (describer) | |
| Polycystidinae Zuccaria Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Zuccaria gabriellae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Lenopharynginae Artinga Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Artinga evelinae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Trigonostomum divae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Dolichomacrostomum lutheri Marcus, 1948 | | w | primary taxonomic authority (describer) | 117-120, 188-189, Abb. 8-12 |
| Karlingia lutheri (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | 117-120, 188-189, Abb. 8-12 |
| Notoplana divae Marcus, 1948 | | - | primary taxonomic authority (describer) | |
| Notoplana martae Marcus, 1948 | | - | primary taxonomic authority (describer) | |
| Euprosthiostomum mortensenii Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Coelogynoporidae Vannuccia Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Vannuccia martae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Bdellourinae Nerpa Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Nerpa evelinae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Uteriporinae Leucolesma Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Leucolesma corderoi Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Uteriporinae Vatapa Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Vatapa gabriellae Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Dugesia hypoglauca Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Girardia hypoglauca Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Zuccaria fredelyna Marcus, 1948 | | w | primary taxonomic authority (describer) | |
| Cylindrostomidae Allostominae Graff, 1882 | | w | other taxonomic work | 138 |
| Conaperta vexillaria (Marcus, 1948) | | w | primary taxonomic authority (describer) | |
| Notoplana divae Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Notocomplana martae (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Euprosthiostomum mortenseni Marcus, 1948 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Notoplana martae Marcus, 1948 | | w | primary taxonomic authority (describer) | 111 |
| Planaria fissipara Kennel, 1888 | | w | other taxonomic work | 176-177 |
| Koinocystella inermis Karling, 1952 | | w | other taxonomic work | |
| Aphanostoma vexillaria (Marcus, 1948) | [with synonyms] | w | primary taxonomic authority (describer) | 16 |