| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Colocongridae | 553182 | | colocongrids | ITIS | valid | | Family |
| Congridae | 161324 | | conger eels congers congres congrios | ITIS | valid | | Family |
| Derichthyidae | 161599 | | longneck eels | ITIS | valid | | Family |
| Echelidae | 161638 | | | ITIS | invalid | junior synonym of Ophichthidae | Family |
| Macrocephenchelyidae | 161602 | | | ITIS | invalid | junior synonym of Congridae | Family |
| Muraenesocidae | 161288 | | false conger eels pike congers congrios picudos congres-brochets | ITIS | valid | | Family |
| Nemichthyidae | 161612 | | snipe eels anguilas tijera poissons-avocettes | ITIS | valid | | Family |
| Nessorhamphidae | 161320 | | | ITIS | invalid | junior synonym of Derichthyidae | Family |
| Nettastomatidae | 161301 | | duckbill eels serpentinas anguilles à bec de canard | ITIS | valid | | Family |
| Nettastomidae | 635299 | | | ITIS | invalid | other, see comments of Nettastomatidae | Family |
| Ophichthidae | 161419 | | worm eels snake eels serpents de mer tiesos | ITIS | valid | | Family |
| Serrivomeridae | 161603 | | sawtooth eels | ITIS | valid | | Family |
| Synaphobranchidae | 161578 | | cutthroat eels deepsea eels anguilles égorgées anguilas branquias bajas | ITIS | valid | | Family |
