1. Red pomfret, also known as freshwater white pomfret, although it looks similar to a pomfret, its adult body has a black dorsal fin and a pelvic fin that shines with orange-red metallic luster.

2. It is a species of Cyprinidae and Cyprinidae, and is closely related to the commonly known “piranha”. Fin rays have no spines. Dorsal fin 18-19; anal fin 16-18; pelvic fin 8. There are two swim bladder chambers, and the rear chamber is longer than the front chamber. Lateral line scales 82~98. There are two rows of teeth in the upper and lower jaws. The tooth surface is notched and the tip is protruding. The teeth are sharp and can bite other creatures in the water. They can eat the same kind when they are hungry and have insufficient food. The number of gill rakers on the first gill arch is 30-36. There is an obvious stomach. The gastric pouch is U-shaped and enlarged. The length of the stomach is about 1/5 of the length of the intestine. There is a pyloric caeca (pylorus) at the junction of the stomach and duodenum. There is fat around the intestine and viscera. piece.