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Visual adaptations in the popeye lanternfish Bolinichthys longipes: (a) aphakic gap, represented in white, (b) tapetum lucidum, (c) photoreceptor topography, (d) ganglion cell topography, (e) sensitivity S topography. N, Nasal, V, ventral. Scale bars, 1 mm. Densities in (c,d) × 103 cells mm−2. Sensitivity S in (e) in μm2 sr. (a–d) Modified from [31–33] with the permission of S. Karger AG, Basel.
