Abstract
Catfish of the family Doradidae (Siluriformes) are endemic to the Neotropics, with 96 valid species, most of them unique to freshwater, and occurring in all major river basins of South America. During the last decade, it has been postulated that members of the Doradidae are the sister group of the Auchenipteridae, and that these fishes are excellent models to investigate large-scale chang…