preacanthella

例句：

1. 1. The preacanthella is a rare and fascinating species of sea snail.
   这种海螺是一种罕见且迷人的物种。
2. 2. The preacanthella has unique features that make it stand out from other sea snails.
   这种海螺具有独特的特征，使其与其他海螺区别开来。
3. 3. The preacanthella is found in the deep ocean, where it can be difficult to find.
   这种海螺生活在深海中，很难找到。