| 41. | Small bumps called denticles cover much of the palate.
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| 42. | Fairhurst was inspired by the dermal denticle structure of the skin of sharks.
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| 43. | The skin is soft and completely devoid of dermal denticles ( scales ).
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| 44. | The labrum is broad and robust, with 15 to 19 pigmented denticles.
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| 45. | Labrum is broad with a matte finish and 17 to 18 pigmented denticles.
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| 46. | Minute denticles are also present on the remainder of the disc upper surface.
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| 47. | Newborns and small juveniles have large, solid dark spots and few denticles.
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| 48. | Ventral areas smooth except for a few patches of denticles of varying density.
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| 49. | The soft skin is completely devoid of dermal denticles.
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| 50. | Dorsal keels on fourth metasomal segments lack discrete denticles.
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