Chatham deep-water triplefin

The Chatham deep-water triplefin (Matanui bathytaton) is a species of triplefin blenny in the genus Matanui. It was described by Graham S. Hardy in 1989. This species occurs at depths between 12 and 550 m on waters off New Zealand including the Chatham Rise, southeast South Island, Auckland Islands, Antipodes Islands and Stewart Island.