dermal denticles 皮质鳞突
N a small tooth or toothlike part, such as any of the placoid scales of sharks 小齿状突起
Shark skin is made of tiny scales known as dermal denticles that can be seen here.
鲨鱼的皮肤是由被称之为肤齿的微小鳞屑所构成。
Unlike the skin of whales and manatees, shark skin doesn't pick up algae or barnacles. This seems to be due to little scales called "dermal denticles."
与鲸类和海牛这些海生哺乳动物不同，鲨鱼的皮肤不会附生海藻或藤壶，这可能要归结于其皮肤上被称之为“肤齿”的微小鳞屑。
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