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What is the scientific name of piranha?
Local names: horse-faced fish, elephant-skinned fish, Qincai, cobbler's knife, bread fish, grilled fish, peeled fish, sheep fish, rat fish, Dizai, Shameng.

Scientific name: blue-finned horse-faced bream

The body is relatively flat and rectangular, similar to a horse's face. Generally, it is 10 ~ 20cm long and weighs about 40g. Short head, small mouth and teeth. Small eyes, high position, near the back edge. The branchial foramen is small, located below the eyes, and the scales are small and fluffy; The body is blue-gray with no lateral lines. The first dorsal fin has two fins, the first fin is thicker and has three rows of barbs; The ventral fin degenerates into a short spine attached to the bony end and cannot move. The shape of the anal fin is similar to that of the second dorsal fin, starting from the back of the anus. The tail stalk is long, the tail fin is segmented and the fin is dark green. The second dorsal fin, pectoral fin and anal fin are all green, hence the name.