Echidna nocturna is a moray eel found in the eastern Pacific Ocean, in the Gulf of California and around Peru and the Galapagos Islands.

[3] Echidna nocturna has a long snake-like body with an average vertebral count of 120.4 vertebrae.

[5] It is gray-brown in color with rows of small white spots along its body.

Echidna nocturna habitats are distributed throughout the tropical Eastern Pacific Ocean.

[7] Echidna nocturna are sometimes host to Theletrum lamothei, a species of digenean parasite.