The body shape variation in three morphotypes of genus Brachymystax. Scatterplot of individual values from the canonical variate analysis for the shape variation of three different morphotypes of Brachymystax. The first two canonical variates (CVs) capture the entire variance (100%) observed among the three morphotypes. Lower left wireframes showing shape changes of B. lenok tsinlingensis (yellow wireframes) along the CV1 axes, (scale factor = -8, bluish green line; bluish green points show average position of landmarks of all individuals ). For CV2, (Top right) black wireframes represent the shape changes of B. tumensis (scale factor = 10); (Bottom right) purple wireframes represent the shape variation of B. lenok (scale factor = -10).