The Eritrean butterflyfish or crown butterflyfish is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is essentially just known from the Red Sea and the Gulf of Aden, but has been reported from East Africa. It grows up to 14 cm (5.5 in) in length. It is white with black chevrons, except for a red zone stretching from the aft dorsal fin across the caudal peduncle to the end of the anal fin. A red bar runs vertically through the caudal fin. There are black eyestripes and a black "crown" with white border.

The Seychelles butterflyfish is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indian Ocean from eastern Africa east to Cocos-Keeling Islands and Christmas Island, north to Sri Lanka. The Seychelles butterflyfish is found in areas of rich coral growth on seaward reefs, at 10–40 m depth.