| 21. | The dermal denticles have rounded bases and three horizontal ridges.
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| 22. | The tail behind the spine is covered by small denticles.
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| 23. | The skin is soft and entirely devoid of dermal denticles.
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| 24. | The skin is entirely naked, without spines or denticles.
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| 25. | Newborns are entirely smooth but develop denticles quickly after birth.
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| 26. | The tail is covered by dermal denticles towards the tip.
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| 27. | The tail past the sting is uniformly covered by denticles.
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| 28. | The dorsal surface is covered by small, roughly conical dermal denticles.
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| 29. | The skin is covered by tiny, non-overlapping dermal denticles.
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| 30. | The skin is covered with closely placed dermal denticles.
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