Sorry about the quality of the photo; it was the best I could get of this guy.
Dive site Bari Reef, max depth 14.3 m/47 ft, late afternoon.
Both hunting in the rocks. No eel fight resulted.
Ophichthidae is a family of eels, comprising species commonly called worm eels and snake eels. The term "Ophichthidae" comes from Greek ophis ("serpent") and ichthys ("fish").
