| Species | Name Used in Reference |
|---|---|
| Hippocampus guttulatus Cuvier, 1829 | Hippocampus guttulatus (p. 220) |
| Hippocampus hippocampus (Linnaeus, 1758) | Hippocampus hippocampus (p. 220) |
| Nerophis ophidion (Linnaeus, 1758) | Nerophis ophidion (p. 220) |
| Syngnathus acus Linnaeus, 1758 | Syngnathus acus (p. 220) |
| Syngnathus typhle Linnaeus, 1758 | Syngnathus typhle (p. 220) |