| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Letharchus aliculatus McCosker, 1974 |
Southwest Atlantic | 21.5 | |
| Letharchus rosenblatti McCosker, 1974 |
Sailfin snake-eel | Eastern Pacific | 35 |
| Letharchus velifer Goode & Bean, 1882 |
Sailfin eel | Western Atlantic | 51 |