round herring

round-herring的词性：
n.（名词）

1. Any of the mostly tropical marine fishes of the family Dussumierlidae, similar to the clupeid herrings but having an abdomen that is rounded and smooth along the edges.
圆腹鲱：圆腹鲱科的大多与鲱相似但腹部光滑而圆的热带海水鱼类的任何一种