Fig. 4. Multispectral micrographs of pieces of flattened retina from Anolis cristatellus and Polychrus marmoratus. (A) Color images in white light. The diffuse yellow pigment present in the accessory member of the double cones is easily seen in the P. marmoratus images. (B) Black-and-white broad-band images of the same areas as in A. (C) The same areas imaged through a 500 nm low-pass interference filter. This is below the cut-off for the G droplets, which appear dark. (D) The same areas imaged through a 450 nm cut-off interference filter. In this case, both the Y and G classes of oil droplet appear dark. The droplets that remain light are the C class. Note, in particular, the rod-like outer segments seen in the P. marmoratus images (arrow) and their colorless oil droplets. Scale bars, 10 µm.