| 11. | The tail fin has unpigmented rays and is covered by dark skin for some distance past its base.
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| 12. | These tend to be pink in colour due to blood vessels showing through the blubber and unpigmented skin.
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| 13. | Mantle roof shows larger unpigmented whitish spots giving a pale appearance to the shell of living specimens by transparency.
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| 14. | At hatching the ventral side is unpigmented and the characteristic V pigmentation is found on the dorsal side.
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| 15. | It also has pigmented pectoral and pelvic fins, while these fins in the other three species are unpigmented.
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| 16. | The dilution effect is essentially the result of a mixture of pigmented and unpigmented regions within the feather barbs.
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| 17. | The cats had excellent hearing, but none of them could tolerate bright light due to their unpigmented eyes.
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| 18. | True white horses have unpigmented skin and hair due to the incomplete migration of melanocytes from the neural crest during development.
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| 19. | In dogs, roan manifests itself only in unpigmented areas, the presence and shape of which are determined by other genes.
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| 20. | The ears are unpigmented and the soles of the feet are haired, which is a characteristic of sand-dwelling gerbils.
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