Fig. 7. Photographs of the reflecting stripes of squid. The ‘red’ stripe at the anterior end of the mantle in white light at (A) 15° incidence, (B) 45° incidence and (C) 55° incidence. Scale bars, 300µm. The mantle ‘green’ stripe in white light at (D) 15° incidence and (E) at 45° incidence. Scale bars, 5mm. (F) The ventral iridophores in white light at 15° incidence. Scale bar, 200µm. (G) The mantle ‘blue’ stripe in white light at 15° incidence. Scale bar, 200µm. (H) Photograph in white light showing the position of the fluorescent layer above the eyes of a squid (Alloteuthis subulata). The inset photograph shows the fluorescent layer excited with blue light. Scale bar, 1cm.