- Source: Hexanematichthys mastersi
Hexanematichthys mastersi, the Master's catfish or Godfrey's catfish, is a species of catfish in the family Ariidae. It was described by James Douglas Ogilby in 1898, originally under the genus Arius. It dwells on the floors of inshore marine waters in Australia and Papua New Guinea. It reaches a maximum total length of 51 cm (20 in).