Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 35 - 48. Belly with usually 17 to 21 + 8 or 9, total 25 to 30 scutes. Eye large, lower jaw projecting. Dorsal fin origin a little before midpoint of body; anal fin origin under hind part of dorsal fin base. Vertical striae on scales traversing whole scale or overlapping across center of scale. Swim bladder with two tubes passing back in the muscles on either side of haemal spines.