The members of the family Pomacanthidae are generally know as angelfishes and, like their nearest cousins, the butterflyfishes, are regarded by many divers and aquarists as being amongst the most beautiful and majestic fishes in the sea. The majority of species occur on shallow reefs in coral, algae and sponge zones, most going little deeper than about 30m but where conditions are pristine and water is very clear, many species go much deeper and few species only live deep (over 100m). Angelfishes feature a large and distinctive backward-protruding spine from the lower corner of the gill-plate (cheek spine) from which the family name was derived. This cheek-spine is diagnostic for all the species , even at juvenile stage, and readily separates any angelfishes from butterflyfishes that may be similar in shape. Mot angelfishes are robust with compressed, ovate to rhomboid shaped bodies, covered with small or tiny scales, and have a continuous dorsal fin. The mouth is small and jaws are set with many small, usually tricuspid teeth that are used for grazing algae or scraping sponges and other sessile invertebrates. Few species combine their diet with a variety of foods and some are planktivores.
Known from around the Arabian Peninsula, from the Gulf of Aqaba in the Red Sea to Kuwait in the Arabian Gulf, and Kenya. Usually found at the coral-rich fringing reefs of the Red Rea at 5-80m and more shallowat the rocky coast of Oman and inside the sandy Arabian Gulf. Adults are identified by their dark head, a body that is surrounded by a back band going from over the dorsal to anal fins, running over caudal peduncle, and its yellow caudal fin. The pale-blue border on the dorsal and anal fins , and a yellow to orange 'ear' spot on the dusky background are other distinctive features. Juveniles have a broad black eye-band and most of the posterior part of the body is black, features that gradually change with age. Length to 15cm