Heniochus pleurotaenia, the phantom bannerfish, is a marine fish belonging to the family Chaetodontidae, native from the central Indo-Pacific area.

The background color is white with light chocolate to dark areas and a brown face mask covering the mouth, eyes and reaches to the base of the first rays of the dorsal fin.

The phantom bannerfish is widespread throughout the tropical and subtropical waters of the central Indo-Pacific from the Maldives to the western coast of Thailand and from the south tip of India to Java (Indonesia).

They seem to prefer mixed algae and coral habitats down to depths of 15 metres (49 ft) but are also found in deeper, offshore waters.

[4] In some geographic areas, the phantom bannerfish is occasionally harvested for the aquarium trade, however, the species does not currently appear threatened and is listed as Least Concern (LC) by the IUCN.