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- W2332016508 abstract "Five of eleven species of freshwater sculpins (Cottus amblystomopsis, C. kessleri, Paracottus kneri, Batrachocottus baicalensis and Procottus jeittelesi) possess changeable corneal coloration found in marine cottids. Specialized chromatophores, the corneal colored cells (CCCs) contain orange and yellow pigment. CCC bodies either form aggregations (dorsal and ventral) or are scattered over the corneal circumference. Each CCC has an extremely long process descending into the pupil zone. During light adaptation, pigment is transported from the cell body to the process. Sexual dimorphism occurs in corneal coloration of Paracottus kneri. The corneal filter of males contains yellow and orange pigment, whereas the filter in females has only yellow CCCs. The corneal light filter of Procottusjeittelesi differs considerably from the common sculpin pattern by containing very small cells and hair-like processes. Fish with CCCs occur at a wide range of light intensities in shallow waters. The CCCs presumably function as adjustable light filters to permit increased sensitivity in low-light situations or to screen out excess light under high-light conditions. Yellow corneas are very useful for predators under high-light conditions. They improve resolution by reducing chromatic aberration and by absorption of the blue veil." @default.
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- W2332016508 date "1987-08-05" @default.
- W2332016508 modified "2023-10-14" @default.
- W2332016508 title "Changeable Corneal Coloration in Some Baikalian and River Sculpins (Pisces: Cottoidei)" @default.
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- W2332016508 doi "https://doi.org/10.2307/1445670" @default.
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