Striped Large-eye Bream, Gnathodentex aureolineatus. Easily recognized from a yellow blotch on the back. Inhabits subtidal reef flats, lagoons, and seaward reefs. May be solitary or in groups. Sometimes forms aggregations of about a hundred or more individuals. Feeds at night on benthic invertebrates like crabs and gastropods, occasionally on small fish. Indo-Pacific: East Africa to the Tuamoto Islands (excluding the Hawaiian Islands), north to Japan, south to Australia. Recently reported from Norfolk Island. Wikipedia doesn’t have an article on this fish.