Calophysus macropterus (also known as the Piracatinga, Vulture Catfish, or Zamurito) is a species of catfish (order Siluriformes) of the monotypic genus Calophysus of the family Pimelodidae.This fish has also been placed in its own family, Calophysidae.This species reaches 40 centimetres (16 in) SL and originates from the Amazon and Orinoco River basins.