The body is moderately elongate and compressed, with a depth measuring 2.1–3.0 times the standard length (SL). The caudal spine is 1.9–2.0 times the head length (HL), and the caudal fin is deeply lunate. In terms of coloration, the upper three-fourths of the body and head exhibit alternating black-edged blue and yellow stripes, while the lower fourth is pale lavender to bluish white. The caudal fin is blackish with a large, grey crescent centroposteriorly, edged at the front in bluish white and at the posterior margin with black. The anal fin is grey with a yellow basal band and a light blue margin, and the pelvic fins are yellow-orange with a black submarginal line edged at the front in bluish white.