Serpent Eel
Derichthys serpentinus
- Least concern
- Card rarity: Common
- Fish

The narrownecked oceanic eel, Derichthys serpentinus, is a longneck eel, the only species in the genus Derichthys, found in all oceans in depths between 500 and 2,000 m. Their length is up to 40 centimetres.
Classification
- Class
- Actinopterygii
- Order
- Anguilliformes
- Family
- Derichthyidae
- Genus
- Derichthys