marley's butterflyfish, chaetodon marleyi, is a species of fish in the family chaetodontidae. it is also called the doubledash or doublesash butterflyfish. it is found in mozambique and south africa, and is an ornamental fish. its closest relative is the west african "chaetodon hoefleri". it feeds on polychaetes, crustaceans, hydroids and ascidians.