Gymnothorax miliaris, the goldentail moray, bastard eel, or conger moray, is a species of marine fish in the family Muraenidae.

The scientific name of the banana eel is Gymnothorax miliaris. The name “banana eel” is a moniker, as it is more commonly called the golden tail moray, bastard eel, or conger moray. This fish comes from the Anguilliformes order, which covers four main commercial species and 9 suborders.

The Banana Eel (Gymnothorax miliaris) belongs to the kingdom Animalia, phylum Chordata, and class Actinopterygii. It is a member of the order Anguilliformes, which includes true eels, and the family Muraenidae, commonly referred to as snake eels.

Bastard eel Gymnothorax miliaris, the Goldentail moray, is a Moray Eel from the Western Atlantic. The Bastard eel lives in the reef-associated, marine, depth range 0 - 60 m, usually 0 - 35 m environment.