Diamondbacks tail of the cutting-edge, a long horn loaded chain ring, has become a hollow tube, then hollow cuticle separated into two ring vacuoles, as if the two air oscillator.

• 响尾蛇尾巴的尖端地方，长着一种角质链装环，围成了一个空腔，角质膜又把空腔隔成两个环状空泡，仿佛是两个空气振荡器。