| 21. | The skin is delicate and entirely lacking dermal denticles.
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| 22. | The skin is very thick and covered by well-calcified dermal denticles.
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| 23. | The body and fins are densely covered by tiny, overlapping dermal denticles.
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| 24. | Fairhurst was inspired by the dermal denticle structure of the skin of sharks.
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| 25. | The skin is soft and completely devoid of dermal denticles ( scales ).
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| 26. | The soft skin is completely devoid of dermal denticles.
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| 27. | The calcified, leaf-shaped dermal denticles.
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| 28. | The skin is entirely devoid of dermal denticles.
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| 29. | The skin is completely devoid of dermal denticles.
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| 30. | The skin is relatively smooth, as the dermal denticles are small and flattened.
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