n = 4
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Japonoconger africanus | (Poll, 1953) | Japonoconger africanus | Congridae | |
| Japonoconger caribbeus | Smith & Kanazawa, 1977 | Japonoconger caribbeus | Congridae | |
| Japonoconger proriger | (Gilbert, 1891) | Ariosoma prorigerum | Congridae | Slope conger |
| Japonoconger sivicolus | (Matsubara & Ochiai, 1951) | Japonoconger sivicolus | Congridae |