soft rays: 38 - 46. Body moderately slender, belly with usually 19 to 21 - 8, total 27 to 29 scutes. Eye large, lower jaw projecting. Dorsal fin origin at about midpoint of body; anal fin origin under hind part of dorsal fin base. Vertical striae on scales not continuous, but with a distinct gap across center of scale. Swim bladder with two tubes passing back in the muscles on either side of haemal spines.