| Family | Scientific Name | Author | Year | Common Name |
| Synaphobranchidae | Dysommina rugosa | Ginsburg | 1951 | Rugose Eel |
Dysommina rugosa
Unique Characters: Head more elongate, mouth extends to level of posterior edge of eye or beyond. Gill openings separate, although they may be closely approximated. Scales absent. Pectoral fin present. Trunk longer, anus well behind tip of appressed pectoral fin.
Similar Species: Shortbelly Eel, Dysomma anguillare. Head more elongate, mouth extends to level of posterior edge of eye or beyond. Gill openings separate, although they may be closely approximated. Scales absent. Pectoral fin present. Trunk very short, anus under or shortly behind tip of appressed pectoral fin.