Skip to main content
. Author manuscript; available in PMC: 2009 Mar 30.
Published in final edited form as: Photochem Photobiol. 2008 Mar 7;84(4):855–862. doi: 10.1111/j.1751-1097.2008.00310.x

Table 3.

Densities of rods and cones in aquatic and terrestrial salamanders.

Red rod Green rod Red-sensitive cone Blue-sensitive cone UV-sensitive cone
Aquatic (n = 3 eyes) Mean ± SD 1033 ± 250 31 ± 6.8 805 ± 31.7 16 ± 1.9 59.5 ± 5.8
Ratio (%)† 100 3.0 79.0 1.5 5.8
Terrestrial (n = 3 eyes) Mean ± SD 1205 ± 119.5 74 ± 2.8 921 ± 26.8 0 64 ± 8.5
Ratio (%)† 100 6.1 75.3 0 5.3
P* >0.05 <0.01 >0.05 >0.05

Values are the mean ± standard deviation of photoreceptors in 10 random retinal fields per rod or cone type.

†

Ratio represents the cell number of each type of photoreceptor per 100 red rods.

*

Statistical significance when comparing aquatic and terrestrial ratios; significant value in bold.