Blue-Ringed Angelfish Emperor Angelfish French Angelfish Regal Angelfish Three-Spot Angelfish Yellowmask Angelfish French Angelfish Scientific name: Pomacanthus paru Close Yellowmask Angelfish Also called: Yellowface Angelfish Scientific name: Pomacanthus xanthometopon Yellowmasks are relatively common on the reefs throughout Southeast Asia. I've seen them around Koh Tao and the Similans in Thailand, as well as Malaysian and Indonesian reefs. Close Three-Spot Angelfish Scientific name: Apolemichthys trimaculatus This is one of the easiest Angelfish to identify. No other Angel is solid yellow, and the black spot on the forehead is a dead giveaway. Close Regal Angelfish Also called: Royal Angelfish Scientific name: Pygoplites diacanthus Regal Angefish can be found in offshore reefs throughout Southeast Asia. Like most Angelfish, they rely on boulders, caves and coral crevices for shelter, which is why it's so hard to get a good picture of them. Close Emperor Angelfish Scientific name: Pomacanthus imperator The Emperor Angelfish can easily be mistaken for other Angelfishes. The distinguishing features are the black mask around the eyes and the horizontal stripes. Close Blue-Ringed Angelfish Scientific name: Pomacanthus annularis The Blue-Ringed Angelfish is one of the most striking fish on the reef. In low light, the blue strips seem to fluoresce. It's also one of the most difficult fish to photograph, constantly changing directions whenever you want to take a picture. Close