belemnitids

例句：

1. 1. The belemnitids are a group of small, brightly colored fish that live in the ocean.
   贝林尼蒂德是一种生活在海洋中的小型、色彩鲜艳的鱼类。
2. 2. These belemnitids are known for their unique coloration and behavior.
   这些贝林尼蒂德因其独特的颜色和行为而闻名。
3. 3. The belemnitids are an important food source for many marine animals.
   贝林尼蒂德是许多海洋动物的重要食物来源。