Distinguished by the following characteristics: Pelvic frenum lacking or only visible with

magnification; in males, Dl height moderate, its margin almost straight, no stripe on fin only a few pale blue spots in life, white spots in preservative, all spines extend beyond membrane and first spine more than twice as long as others, dorsal fins contiguous, connected by membrane; in females, Dl negligible, represented by only a few short spines; D2 in both sexes lacking stripes; D 1 with 4-16 spines; longitudinal scale count 46-52; head width 15.4-19.4% SL; pelvic fin length 15.0-17.1 % SL ; length of anal fin base 14.2-18.5% SL; lengthofD2 base 20.6-26.8% SL; total D2 elements 11-14; total anal fin elements 9-12; TRDB 12-17 (Ref. 5218).