coelacanth

n.[动]腔棘鱼adj.腔棘鱼类的

一种史前时期存在的鱼类，有鳍和鳞片，被认为是鱼类和两栖动物之间的过渡形式。

名词

1、The coelacanth is often referred to as a "living fossil" due to its ancient lineage.
由于其古老的血统，被广泛称为“活化石”的腔棘鱼。

2、Scientists were amazed when a living coelacanth was discovered in the Indian Ocean in 1938.
1938年在印度洋发现活体腔棘鱼时，科学家们非常惊讶。