heptaneurus

例句：

1. 1.The seven-spined worm is a type of marine creature found in the deep sea.
   七鳃鳗是一种生活在深海中的海洋生物。
2. 2.Scientists have discovered that this species has unique adaptations to survive in its environment.
   科学家发现，这种物种具有独特的适应环境的能力。
3. 3. The seven-spined worm is used in traditional Chinese medicine for its medicinal properties.
   七鳃鳗在传统中医中被用于其药用特性。