Fig. 5. Statistical difference in swimming behaviour of larvae before and after lesion. The number of the larvae whose final position was located within 45° of the y-axis in Figs 2 and 4 (shaded areas) was counted for each swimming pattern and the percentage of each swimming pattern was plotted. (A) The 60 control larvae. (B) The 56 larvae with anterior pigment cells ablated. (C) The 69 larvae with posterior pigment cells ablated.