The green humphead parrotfish (Bolbometopon muricatum) is the largest species of parrotfish, growing to lengths of 1.5 m (4.9 ft) and weighing up to 75 kg (165 lb).
It is found on reefs in the Indian and Pacific Oceans, from the Red Sea in the west to Samoa in the east, and from the Yaeyama Islands in the north to the Great Barrier Reef, Australia, in the south.
Other common names include bumphead parrotfish, humphead parrotfish, double-headed parrotfish, buffalo parrotfish, and giant parrotfish.
It is the only species in the monotypic genus Bolbometopon and is the largest herbivorous fish inhabiting coral reefs.
