1257 Acanthurus leucosternon Bennett, 1833 Acanthuridae Surgeonfishes, tangs, unicornfishes Acanthurinae Acanthuriformes Teleostei Powderblue surgeonfish Indian Ocean: eastern Africa to the Andaman Sea, southwest Indonesia and Christmas Island; with range extended to Bali, Indonesia in Western Pacific (Ref. 37792). AMNH 16553 Hepatus leucosternon AMNH 50730 1979 Acanthurus leucosternon AMNH 50731 1979 Acanthurus leucosternon AMNH 50732 1979 Acanthurus leucosternon AMNH 43437 1980 Acanthurus leucosternon AMNH 89646 1988 Acanthurus leucosternon