| Rhabditophora Macrostomorpha Doe, 1986 | | w | other taxonomic work | |
| Macrostomorpha Haplopharyngida Karling, 1974 | | w | other taxonomic work | |
| Macrostomorpha Macrostomida Karling, 1940 | | w | other taxonomic work | |
| Macrostomidae Antromacrostomum Faubel, 1974 | | w | latest taxonomic authority | |
| Macrostomidae Dunwichia Faubel, Blome & Cannon, 1994 | | w | latest taxonomic authority | |
| Macrostomorpha Myozona Marcus, 1949 | | w | other taxonomic work | |
| Macrostomidae Psammomacrostomum Ax, 1966 | | w | latest taxonomic authority | |
| Macrostomidae Siccomacrostomum Schmidt & Sopott-Ehlers, 1976 | | w | latest taxonomic authority | |
| Paramyozonaria rosacea Tyler, 1975 | | w | other taxonomic work | |
| Macrostomorpha Haplopharyngidae Meixner, 1938 | | w | other taxonomic work | |
| Haplopharynx rostratus Meixner, 1938 | | w | latest taxonomic authority | 34 |