Distinctive Characters: First dorsal fin with 8 spines, second dorsal fin with 1 spine and 22-24 rays. Anal fin with 2 detached spines, followed by 1 spine and 18-20 rays. Gill rakers on first gill arch including the rudiments, 27-40. Breast completely scaled. Adults with lower jaw somewhat enlarged and projecting beyond upper jaw. Posterior part of lateral line with 11-18 relatively small scutes. Colour: Silvery; grayish above, paler below. Posterior margin of preopercle black in adults. Leading edge of pelvic fin and distal margin of anal fin with a narrow white border.
Habitat and Biology: Prefers outer reef areas. Distribution: Indo-West Pacific.
Remarks: Many of the trevallies or jacks are rather difficult to tell apart, but Carangoides plagiotaenia is quite distinctive with its rather elongate shape and the black cheek bar.