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The skin colour of amphibians is produced by three layers of pigment cells called chromatophores. These three cell layers consist of the melanophores (occupying the deepest layer), the guanophores (forming an intermediate layer and containing many granules, producing a blue-green colour) and the lipophores (yellow, the most superficial layer).
The skin, at least in the more advanced forms probably had a water-tight epidermal horny overlay, similar to the one seen in today's reptiles, though they lacked horny claws. [ 32 ] [ 33 ] In chroniosuchians and some seymouriamorphs , like Discosauriscus , dermal scales are found in post-metamorphic specimens, indicating they may have had a ...
Template:WikiProject Amphibians and Reptiles is part of WikiProject Amphibians and Reptiles, an effort to make Wikipedia a standardized, informative, comprehensive and easy-to-use resource for amphibians and reptiles. If you would like to participate, you can choose to edit this article, or visit the project page for more information.
The skin also has numerous ring-shaped folds, or annuli, that partially encircle the body, giving them a segmented appearance. Like some other living amphibians, the skin contains glands that secrete a toxin to deter predators. [15] The skin secretions of Siphonops paulensis have been shown to have hemolytic properties. [26]
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After a few days, the eyes clear and the snake "crawls" out of its old skin. The old skin breaks near the mouth and the snake wriggles out aided by rubbing against rough surfaces. In many cases the cast skin peels backward over the body from head to tail, in one piece like an old sock. A new, larger, and brighter layer of skin has formed ...
Although it is common for amphibia to respire out of their skin, also known as cutaneous respiration, it was found that amphiuma primarily respire through their lungs, despite their aquatic lifestyle. [19] This is suggested by the high lung to respiratory capillary density compared to the relatively low skin to respiratory capillary density ...