Fig. 8. Similar to Fig. 5A, but showing the real color images (A) and false color images (B) of the partial polarization (% Pol) of the arm stripes of the squid (Loligo pealeii). Data collected in Position 1 (see Fig. 1). The tilt or rotation angle is shown at the left side of each row. The color coding of the partial polarization values is shown at the right of the images. The color coded images were also weighted with relative reflectance values of the original images, as in the right panels of Fig. 2C,D. Note the apparent color change in the photos of squid arm stripes at greater angles of tilt. These changes are not seen in the reflectance spectra (Fig. 6), and the arms did not obviously change color as seen by eye; they apparently arise because of the extreme brightness of the reflections at these angles, which affected the digital camera's automatic white-balance setting.