| Valid name | Idiacanthus |
| Synonym | Gender: M; Monatsber. Kgl. Pr. Akad.Wiss., Berlin: 846 |
| Synonym | Idiacanthus Peters, 1877 |
| Synonym | Type: I. fasciola Peters, 1877, by monotypy, western South Pacific. |
| Synonym | Bathyophis Günther, 1878, by monotypy, 'Middle of North Atlantic'). |
| Synonym | Stylophthalmus Brauer, 1902, by monotypy, South Atlantic, Indian Ocean, Antarctic Ocean). |