| Valid name | Spinachia |
| Synonym | Spinachia Linnaeus, 1758). |
| Synonym | Type: Gasterosteus spinachia Linnaeus, 1758, by absolute tautonymy. |
| Synonym | Spinachia Cuvier, 1817 |
| Synonym | Gender: F; Règne animal, 1817: 320 |
| Synonym | Polycanthus Swainson, 1838, Nat. Hist. Fishes..., 2: 242 (type: G. spinachia L. by monotypy). |
| Synonym | Gastraea Sauvage, 1874, Nouv. Arch. Mus., 10: 7, 36 (type: Gasterosteus spinachia Linnaeus, 1758). |