A new-to-science moray eel has been discovered lurking in the dim river mouths of the Central Indo-Pacific, inspiring a species name that’s a hat-tip to the ruler of the underworld, Hades.

A moray’s gape extends well back in its big blunt-nosed ... brown estuarine moray eel (Anguilliformes, Muraenidae) from the Central Indo-Pacific Ocean Many moray species are brightly coloured ...

Most other moray eels live in saltwater environments like oceans and coral reefs. This new species prefers estuaries, where rivers meet the sea, creating a mix of fresh and saltwater. These areas ...