Marine; brackish; reef-associated; depth range 0 - 25 m . Tropical; 24°C - 28°C ; 30°N - 30°S

Maturity: Lm 18.1, range 12 - ? cm Max length : 42.0 cm TL male/unsexed; ; common length : 25.0 cm TL male/unsexed;

Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 13. Dusky blue dorsally, silvery below; a bright yellow spot adjacent to last few rays of dorsal fin; head with lines and spots. Preopercular angle 91°-102°; strong scales fully cover the cheeks; midline of thorax scaled, not the pelvic ridges. Anterior nostril with extremely low rim, slightly expanded posteriorly. Spines stout, pungent, venomous. Body shape (shape guide): short and / or deep;  Cross section: compressed.