Serrasalmo scapularis Gunther, 1864 (misapplied) Serrasalmo striolatus Steindachner, 1908 Pygopristis gibbosus Starks, 1913 Pristobrycon baratai Amaral Campos, 1946 Pygopristis antoni Fernández-Yépez, 1965 Pristobrycon striolatus is a species of serrasalmid fish.

Pristobrycon striolatus inhabits mainly black or acidic waters in tributaries in the Orinoco and Amazon River Basins.

The head is silver with metallic orange to red at the mandibular and opercular regions.

Its body is greenish laterally and a mixture of orange and red at the abdominal area, covered with "pepper-like" spots.

[1] Like other piranhas, P. striolatus is a predator, consuming smaller fish and attacking fins.