| Valid name | Diretmus |
| Synonym | Type: D. argenteus Johnson, by monotypy. |
| Synonym | Diretmus Johnson, 1863 |
| Synonym | Gender: M; Ann. Mag. nat. Hist., (3)14: 403 |
| Synonym | Gyrinomene Vaillant, 1888, Poissons, in Expéd. scient. 'Travailleur' 'Talisman': 18, 45 (type: Gyrinomene nummularis |
| Synonym | Gyrionemus Jordan, 1920, The Genera of Fishes, 4: 443 (err. typ.). |