| Arnold, K. E., & Neumeyer, C. (1987). Wavelength discrimination in the turtle pseudemys scripta elegans. Vision Research, 27(9), 1501–1511. |
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| Added by: Sarina Wunderlich 14 Aug 2008 20:50:46 UTC |
Pop. 3.5%
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| Kolb, H., & Jones, J. (1987). The distinction by light and electron microscopy of two types of cone containing colorless oil droplets in the retina of the turtle. Vision Research, 27(9), 1445–1458. |
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| Added by: Sarina Wunderlich 14 Aug 2008 20:50:46 UTC |
Pop. 2%
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| Lipetz, L. E. (1984). Pigment types, densities and concentrations in cone oil droplets of emydoidea blandingii. Vision Research, 24(6), 605–612. |
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| Added by: Admin 24 Aug 2008 20:00:22 UTC |
Pop. 2.25%
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| Neumeyer, C., & Jäger, J. (1985). Spectral sensitivity of the freshwater turtle pseudemys scripta elegans: evidence for the filter-effect of colored oil droplets. Vision Research, 25, 833–838. |
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| Added by: Admin 24 Aug 2008 20:00:25 UTC |
Pop. 2%
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