| Childiidae Tetraposthia Steinböck, 1931 | w | primary taxonomic authority (describer) | ||
| Nemertodermatida Nemertodermatidae Steinböck, 1930 | w | primary taxonomic authority (describer) | ||
| Nemertodermatidae Nemertoderma Steinböck, 1930 | w | primary taxonomic authority (describer) | ||
| Nemertoderma bathycola Steinböck, 1930 | w | primary taxonomic authority (describer) | 47 | |
| Tetraposthia colymbetes Steinböck, 1931 | w | primary taxonomic authority (describer) | 65 | |
| Provortex punctatus (Levinsen, 1879) | w | other taxonomic work | 10 |