 | Anguillidae
| | Anguilla anguilla | 1 |
 | Chlopsidae
| | Chlopsis dentatus, Chlopsis bicolor | 2 |
| Colocongridae
| | Coloconger cadenati | 1 |
 | Congridae
| | Conger conger, Ariosoma balearicum, Heteroconger longissimus, Gnathophis mystax | 5 |
| Derichthyidae
| | Derichthys serpentinus, Nessorhamphus ingolfianus | 2 |
| Muraenesocidae
| | Cynoponticus ferox | 1 |
| Muraenidae
| | Muraena helena, Gymnothorax vicinus, Gymnothorax bacalladoi, Muraena augusti | 12 |
| Nemichthyidae
| | Avocettina infans, Nemichthys curvirostris, Nemichthys scolopaceus | 3 |
| Nettastomatidae
| | Nettastoma melanurum, Nettenchelys dionisi, Facciolella oxyrhyncha, Venefica proboscidea | 4 |
| Ophichthidae
| | Myrichthys pardalis, Apterichtus caecus, Apterichtus anguiformis, Ophisurus serpens | 10 |
| Serrivomeridae
| | Serrivomer lanceolatoides, Serrivomer beanii | 2 |
| Synaphobranchidae
| | Simenchelys parasitica, Synaphobranchus affinis, Ilyophis brunneus, Synaphobranchus kaupii | 6 |
