The Ribbon Eel can easily be recognized by its hugely expanded anterior nostrils.
Juveniles and subadults are jet black with a yellow dorsal fin. Females are yellow with a black anal fin and white margins on the fins. Adult males are blue with much of the snout and lower jaw yellow.
The species grows to 1.3 m in length.
It is usually seen in burrows in sandy or benthic areas adjacent to coral reefs.
The Ribbon Eel occurs in tropical marine waters of the Indo-west Pacific.
In Australia it is known from the offshore islands of north-western Western Australia and the Barrier Reef, Queensland.
It has also been called the Ribbon Moray.