Moringua macrocephalus is an eel in the family Moringuidae (spaghetti/worm eels).[1] It was described by Pieter Bleeker in 1863, originally under the genus Aphthalmichthys.[2] It is a subtropical, freshwater eel which is known from rivers in the east and south China Sea. It typically dwells in river mouths and mud flats. Males can reach a maximum standard length of 36.5 centimetres.[1]