| Species | Name Used in Reference |
|---|---|
| Hippocampus angustus Günther, 1870 | Hippocampus angustus (p. 3) |
| Hippocampus erectus Perry, 1810 | Hippocampus erectus (p. 3) |
| Hippocampus guttulatus Cuvier, 1829 | Hippocampus ramulosus (p. 3) |
| Hippocampus hippocampus (Linnaeus, 1758) | Hippocampus hippocampus (p. 3) |
| Hippocampus histrix Kaup, 1856 | Hippocampus histrix (p. 3) |
| Hippocampus ingens Girard, 1858 | Hippocampus ingens (p. 3,5) |
| Hippocampus kuda Bleeker, 1852 | Hippocampus kuda (p. 5) |
| Hippocampus reidi Ginsburg, 1933 | Hippocampus reidi (p. 3) |
| Hippocampus whitei Bleeker, 1855 | Hippocampus whitei (p. 5) |
| Hippocampus zosterae Jordan & Gilbert, 1882 | Hippocampus zosterae (p. 3) |