25524 Mylossoma aureum (Spix & Agassiz, 1829) Serrasalmidae Piranhas and pacus Colossomatinae Characiformes Teleostei South America: Amazon and Orinoco River basins. AMNH 12268 Mylossoma aureum AMNH 3941 Mylossoma aureum AMNH 77346 1965 Mylossoma aureum AMNH 77502 1965 Mylossoma aureum AMNH 35711 1973 Mylossoma aureum AMNH 35712 1974 Mylossoma aureum AMNH 221384 1977 Mylossoma aureum AMNH 221392 1977 Mylossoma aureum