6. A small North American freshwater fish(Percopsis omiscomaycus) having a translucent body, an adipose fin, and fine saw-toothed edges on its scales.

• 鲑鲈一种小型北美淡水鱼（鲑鲈鲑鲈属），身体透明，鳍多脂肪，鳞边有细小锯齿状边缘收藏指正