Hirudinea

例句：

1. 1. Hirudinea is a common marine creature found in many coastal areas.
   海蜇是一种常见的海洋生物，存在于许多沿海地区。
2. 2. Hirudinea has been used in traditional medicine for its anti-inflammatory properties.
   海蜇因其抗炎特性而被传统医学用于治疗。
3. 3. The researchers collected samples of Hirudinea to study their behavior and reproduction.
   研究人员收集了海蜇样本，以研究它们的行为和繁殖。