A new species of Astyanax (Characiformes: Characidae) from the endorheic Río Salí basin, Tucumán, northwestern Argentina. Author Juan Marcos Mirande Author Gastón Aguilera Author María de las Mercedes Azpelicueta text Zootaxa 2007 1646 31 39 http://www.zoobank.org/urn:lsid:zoobank.org:pub:D83848ED-9E15-4C2C-A228-0288B2CAFBB9 journal article z01646p031 D83848ED-9E15-4C2C-A228-0288B2CAFBB9 Astyanax leonidas : MLP 9580 , holotype , 45.6 mm, Argentina , Misiones , Rio Parana basin, headwaters of Arroyo Urugua-i .