(Xenomystax bidentatus)
Xenomystax bidentatus is an eel in the family Congridae (conger/garden eels). It was described by Earl Desmond Reid in 1940. It is a marine, tropical eel which is known from northern South America, in the western central Atlantic Ocean. It is known to dwell at a depth range of 494 to 604 metres (1,621 to 1,982 ft).