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。
An electron micrograph reveals sharkskin's secret to speed: tooth-like scales called dermal denticles.
电子显微照揭示了鲨鱼皮的速度奥秘，“牙状鳞片称为皮肤的细齿，水通过密纹而没有翻滚”鲨鱼研究员乔治·伯吉斯说。
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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