Robust and rounded body. Head profile pointed, alike L. dumerili. HL about 23% SL. Adipose tissue forming a single small rim around the eye. Upper lip's thickness about 1/3 the eye diameter. Lower lip with a thin rim. Anterior edge of the upper jaw reaches the vertical limit of the anterior eye rim. Back silverish blue-grey, sides pale to silver-white with seven longitudinal grey lines. Anal and dorsal fins yellow. Caudal fin yellow with a black edge (Ref. 28587).