— There is no well-known fish species officially called anguila roja , but it might be a local or informal name for a reddish eel-like creature, such as a red moray eel ( Gymnothorax tile ) or a rare deep-sea eel with reddish pigmentation. Some species of Serrivomer (sawtooth eels) or nettastomatids can have reddish hues when preserved or under certain lights.