Distinctive Characters: Dorsal fin with 10 spines and 13 rays (last divided at base). Anal fin with 3 spines and 10 rays (last divided at base). Pectoral fin with 17 or 18 rays. Body relatively deep. Juveniles with very long pelvic fins. Gill rakers on lower limb of first arch 70 to 80. Caudal fins emarginate.
Colour: Dull grey. Juveniles black and white, with a broad black horizontal band from eye to rear edge of opercle.
Habitat and Biology: Inhabits coral reefs and is usually seen solitarily. Occurs at depths between about 5 and 50 m. Feeds largely on fishes and crustaceans.
Distribution: Widespread in Indo-West Pacific.
Remarks: Both Macolor macularis and the closely related M. niger have distinctly patterned black and white juveniles. Unlike the adults these can be very easily distinguished not only on the details of the colour pattern but also on the presence of extremely long pelvic fins in juveniles of M. macularis.