Dorsal fin with XII spines and 12-13 soft rays; anal fin with III spines and 5 soft rays; pectoral fin with with 16-18(17) soft rays; lateral line scales 49-53. Closely similar to S. marmoratus, but distinguishable in having usually 17 pectoral fin rays and the presence of a sharp spine on the upper margin of the 2nd infraorbital bone. Body color yellow-red.
habitats
Inhabits demersal marine environment rocky bottom, deeper than S. marmoratus. Total length 25cm. Viviparous.
Distribution
Western Pacific: East China Sea, South China Sea, Hong Kong, and from southern Japan to eastern Korea.