Black Sailfin Eel
Letharchus rosenblatti
- Least concern
- Card rarity: Common
- Fish

The Sailfin snake-eel also known as the Black sailfin eel in Mexico,) is an eel in the family Ophichthidae. It was described by John E. McCosker in 1974. It is a marine, tropical eel which is known from the eastern central and southeastern Pacific Ocean, including Colombia, Ecuador, Costa Rica, Panama and Mexico. It dwells at a depth range of 0 to 17 metres, and inhabits sand sediments. Males can reach a maximum total length of 31 centimetres (12 in).
Classification
- Class
- Actinopterygii
- Order
- Anguilliformes
- Family
- Ophichthidae
- Genus
- Letharchus