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 mexicanus : ANSP 162587 , 2 ex., C&S, 39.4- 48.5 mm. USA , Texas , Victoria Co. , Rio Guadalupe .