12911 Astyanax abramis (Jenyns, 1842) Acestrorhamphidae American tetras Acestrorhamphinae Characiformes Teleostei South America: La Plata basin and upper Amazon and Meta River basins. AMNH 12715 Astyanax abramis AMNH 5297 Astyanax abramis AMNH 9611 1928 Astyanax abramis AMNH 16842 1938 Astyanax abramis AMNH 77495 1965 Astyanax abramis AMNH 222986 1976 Astyanax abramis AMNH 222997 1976 Astyanax abramis AMNH 99927 1989 Astyanax abramis