Echinothuriidae

例句：

1. 1. This species is known for its unique echinotic crests.
   这种物种以其独特的棘冠而闻名。
2. 2. The Echinothuriidae family includes many marine animals with distinctive features.
   棘头虫科家族包括了许多具有独特特征的海洋动物。
3. 3. The discovery of this new species has expanded our understanding of the Echinothuriidae family.
   这一新物种的发现扩展了我们对棘头虫科家族的理解。