Electra Eel is an enemy from Battletoads.
Details
As their name implies, Electra Eels are eels of both yellow and gray coloring, though there's no difference between them. They appear in the underwater sections of Terra Tubes, swimming around erratically and shocking the player if he gets close. they can be dealt with with two hits.
Gallery
Battletoads (NES)
Battletoads (Mega Drive)