| Nominal Species (n = 4) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Hypoechinorhynchus alaeopis Yamaguti, 1939 | Hypoechinorhynchus alaeopis | 19 |
| Bolborhynchus exiguus Achmerov, et al, 1941 | Bolborhynchoides exiguus | 75097 |
| Hypoechinorhynchus magellanicus Szidat, 1950 | Hypoechinorhynchus magellanicus | 19 |
| Hypoechinorhynchus thermaceri Buron, 1988 | Hypoechinorhynchus thermaceri | 8774 |