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Fig. 1. Absorbance spectra of rods and cones. (A) Middle-wave sensitive double cones from T. bernacchii. (B) Rods from T. hansoni. (C) Short-wave sensitive single cones from T. loennbergii. Open symbols, before bleaching; filled symbols, after white light bleaching. Solid lines are visual pigment templates (Govardovskii et al., 2000) with {lambda}max at 490 (A), 501 (B) and 426 nm (C). (D) Distribution histogram of rods and cones from D. mawsoni. Filled bars, rods; hatched bars, MWS single cones; open bars MWS double cones and SWS single cones; bin size 2 nm.