Zebrasoma scopas, S
Widespread Indo-Pacific, but several colour forms and relationship with Zebrasoma flavescens, the yellow tang, and Z.rostratum , the black tang, is unclear. They occur together in some areas and inter-breed. Various reef habitats, inshore to outer reefs. Adults may swim in pairs, groups, or form schools in certain localities. Juveniles solitary in amongst corals. Variable in colour from nearly black-looking underwater to brown or yellow. Small juveniles with thin vertical lines. Peduncular spine white at all stages. Length to 16cm.