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Fig. 3 Connectomic reconstruction of outer retinal circuitry. (A) Example vertical EM section through the outer retina, with cones and HCs painted. Cones are color coded by their spectral identity, with “yellow cones” indicating red or green cones at the section edge that could not be unequivocally attributed (Methods); HCs: H1, yellow/brown; H2, dark green; and H3, light pink. (B to D) Full volumetric reconstruction of all cones and skeletonized HCs in this patch of retina, shown from the side (B), top (C), and HCs only (D). (E to G) Example individual HCs classified as H1 (E), H2 (F), and H3 (G) with connecting cone pedicles. (H to K) Quantification of HC dendritic area (H) (cf. fig. S3G) and cone contacts (J and K) shown as absolute numbers with bootstrapped 95% confidence intervals (J) and percentage of cones in dendritic territory with binomial confidence intervals (I and K).