Fig. 4

a Enlargement of zone b showing lamellar cells (with alternatively blue-green and pink cytoplasm) and Müller cells (light yellow cytoplasm). The lamellar cells from left to right, are designated b1 through b22. b–w Details of lamellar cells b1–b22; orientation and color codes are as in Fig. 3; mitochondria hidden by intervening structures are indicated by dotted outlines. Scale bar in a (also applicable to c–w) = 10 μm