| Xenacoelomorpha Nemertodermatida Karling, 1940 | | w | latest taxonomic authority | |
| Flagellophora apelti Faubel & Dorjes, 1978 | [with synonyms] | w | latest taxonomic authority | 66-67, Figs. 11.1-14, 12.1-5, 13.1-4 |
| Nemertodermatida Nemertodermatidae Steinböck, 1930 | | w | latest taxonomic authority | |
| Meara sp. Smith, Tyler, Boatwright & Lundin, 1994 | | - | latest taxonomic authority | 60 |
| Nemertodermatidae Nemertoderma Steinböck, 1930 | | w | latest taxonomic authority | |
| Nemertodermatidae Nemertinoides Riser, 1987 | | w | latest taxonomic authority | |
| Nemertinoides elongatus Riser, 1987 | [with synonyms] | w | latest taxonomic authority | 60-61, Figs. 1.8-17, 3.1-4, 4.1-26 |
| Nemertoderma sp. B Tyler & Rieger, 1977 | | - | latest taxonomic authority | |
| Nemertoderma sp. D Tyler & Rieger, 1977 | | - | latest taxonomic authority | |
| Nemertoderma sp. A Tyler & Rieger, 1977 | | - | latest taxonomic authority | |
| Flagellophora sp. Smith & Tyler, 1985 | | - | latest taxonomic authority | |
| Nemertinoides sp. Smith & Tyler, 1985 | | - | latest taxonomic authority | |
| Nemertodermatida Ascopariidae Sterrer, 1998 | | w | primary taxonomic authority (describer) | |
| Ascopariidae Ascoparia Sterrer, 1998 | | w | primary taxonomic authority (describer) | |
| Ascoparia neglecta Sterrer, 1998 | | w | primary taxonomic authority (describer) | 67-68, Figs. 14.1-10, 15.1-4 |
| Ascoparia secunda Sterrer, 1998 | | w | primary taxonomic authority (describer) | 68-69, Figs. 14.11-16, 16.1-4 |
| Ascoparia sp. Sterrer, 1998 | | - | primary taxonomic authority (describer) | 69 |
| Nemertoderma sp. Westblad, 1937 | | - | latest taxonomic authority | |
| Meara stichopi Westblad, 1949 | | w | other taxonomic work | 58-60, Figs. 1.1-7, 2.1-5 |
| Nemertoderma psammicola Sterrer, 1970 | | w | other taxonomic work | 61-63, Figs. 5.1-26, 6.1-3, 7.1-4 |
| Nemertoderma westbladi (Westblad, 1937) | [with synonyms] | w | other taxonomic work | 63-65, Figs. 8.1-5, 9.1-9 |
| Nemertoderma bathycola Steinböck, 1930 | | w | latest taxonomic authority | 65, Fig. 10.1-3 |