Ophichthus mystacinus

Ophichthus mystacinus is an eel in the family Ophichthidae (worm/snake eels). It was described by John E. McCosker in 1999. It is a marine, deep water-dwelling eel which is known from New Caledonia, in the western Pacific Ocean. It dwells at a depth range of 371 to 824 m. Males can reach a maximum total length of 42.9 cm.

The species epithet "mystacinus" means "mustachioed" in Greek.