| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Pterotrachea coronata Forsskål, 1775 |
Sea elephant | Pacific Ocean, Western Atlantic and the Mediterranean | 26 |
| Pterotrachea hippocampus Philippi, 1836 |
Pacific Ocean, Western Central Atlantic and the Mediterranean Sea | 6.5 | |
| Pterotrachea keraudrenii Gray, 1850 |
Western Atlantic | ||
| Pterotrachea minuta Bonnevie, 1920 |
Northwest Pacific | ||
| Pterotrachea scutata Gegenbaur, 1855 |
Pacific Ocean, Western Atlantic and the Mediterranean Sea | 20 |