The brassy trevally, Caranx papuensis (also known as the brassy kingfish, Papuan trevally, tea-leaf trevally and green back trevally) is a species of large marine fish classified in the jack family, Carangidae. The brassy trevally is distributed throughout the tropical waters of the Indian and West Pacific Oceans, ranging from South Africa in the west to the Marquesas Islands in the east, including Australia to the south and Japan in the north. The brassy trevally is best distinguished by its colouration, having small black spots scattered above and below its lateral line, with a narrow white outside edge to its lower caudal fin. The species grows to a known maximum length of 88 cm and a weight of at least 6.4 kg. It predominantly inhabits both coastal and offshore reefs, as well as inshore lagoons, bays and even estuarine waters as a juvenile. It is a predatory species, moving either individually or small schools, where it takes small fish and occasionally squid and crustaceans. Nothing is known of its reproductive cycle. The brassy trevally is not of great importance to commercial fisheries, but is taken in many netting and hook and line operations throughout its range. It is valued as a gamefish by anglers and spearfishermen, and is considered an excellent table fish.