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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Comp Neurol. 2014 Jul 1;522(10):2249–2265. doi: 10.1002/cne.23531

Figure 2.

Figure 2

Evidence for three opsin types in UV cones by a component analysis and by partial bleaching. Dotted and dashed lines show A1 and A2 spectra, respectively, of a UV cone pigment in violet, S pigments in blue, and L pigments in red. Summation of the components is shown with a continuous line. A. Dark-adapted UV cone from a large aquatic salamander. B. Dark-adapted UV cone from a terrestrial salamander. L pigment in this cell, if present, fell below our limit of detection. C. Reduction of the S pigment components after exposure of the UV cone from B to bright light, λ >400 nm (filled symbols). The dark-adapted spectrum (open symbols) is redrawn from B.