Pristigaster is a small genus of ray-finned fish belonging to the family Pristigasteridae. It contains two species, both restricted to the Amazon Basin in South America. Species Pristigaster cayana Cuvier, 1829 (Amazon hatchet herring) Pristigaster whiteheadi Menezes & de Pinna, 2000 References Pristigasteridae Fish of South America Ray-finned fish genera Freshwater fish genera Taxa named by Georges Cuvier