| Nominal Species (n = 23) | Present allocation (n = 21) | Ref. |
|---|---|---|
| Rhabdocoma americana Cobb, 1920 | Rhabdocoma americana | 19 |
| Rhabdocoma articulata Gerlach, 1955 | Rhabdocoma articulata | 19 |
| Trefusia axonolaimoides Allgen, 1959 | Trefusia axonolaimoides | 19 |
| Rhabdocoma brevicauda Stekhoven, 1950 | Rhabdocoma brevicauda | 19 |
| Halanonchus bullatus Gerlach, 1964 | Halanonchus bullatus | 19 |
| Trefusia conica Gerlach, 1957 | Cytolaimium conicum | 75097 |
| Trefusia cornea Gerlach, 1958 | Trefusia cornea | 19 |
| Rhabdocoma cylindricauda Stekhoven, 1950 | Rhabdocoma brevicauda | 75097 |
| Cytolaimium exile Cobb, 1920 | Cytolaimium exile | 19 |
| Trefusia filicauda Allgen, 1933 | Trefusia filicauda | 19 |
| Trefusia filum Stekhoven, 1942 | Trefusia filum | 19 |
| Trefusia helgolandica Riemann, 1966 | Trefusia helgolandica | 19 |
| Bognenia litoralis Allgen, 1932 | Trefusia litoralis | 75097 |
| Trefusia longicauda De Man, 1893 | Trefusia longicauda | 19 |
| Halanonchus macramphidus Chitwood, 1936 | Halanonchus macramphidus | 19 |
| Rhabdocoma macrura Cobb, 1920 | Rhabdocoma macrura | 19 |
| Halanonchus macrurus Cobb, 1920 | Halanonchus macrurus | 19 |
| Trefusia magna Filipjev, 1946 | Trefusia magna | 19 |
| Trefusia obtusicaudata Allgen, 1933 | Trefusia obtusicaudata | 19 |
| Cytolaimium obtusicaudatum Chitwood, 1936 | Cytolaimium exile | 75097 |
| Trefusia varians Gerlach, 1933 | Trefusia varians | 19 |
| Latilaimus zosterae Allgen, 1933 | Halanonchus zosterae | 75097 |
| Trefusia zostericola Allgen, 1933 | Trefusia zostericola | 19 |