Yellowbar Angelfish

The Yellowbar Angelfish (Pomacanthus maculosus) or half-moon angelfish, yellow-marked angelfish, yellowband angelfish, or yellow-blotched angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It can be found in the eastern Mediterranean Sea and, more recently, the western Indian Ocean. Although other invertebrates may be consumed incidentally, sponges and tunicates make up the majority of their diet.

Pomacanthus maculosus has a small mouth filled with tiny bristle-like teeth and a deep, compressed body. At the preoperculum angle, they have a clear spine. Adults have filaments that extend past the caudal fin from the soft-rayed regions of the dorsal and anal fins. Adult scales appear to be mostly blue because of the brownish blue backdrop and blue margins on each scale. Near the center of the flanks, there is an uneven yellow band with dark blue, vertically elongated dots toward the head. On a light yellow backdrop, the caudal fin displays blue lines that are wavelike. The youngsters have three wider white lines and numerous arced, vertical blue lines markings on their mostly black bodies. Only the rear third of the caudal fin is yellow.