Author: Lima & Britski, 2007
Comments: There is little published information about the general biology and ecology of this species when compared to its much better known <i>S. brasiliensis</i>, even though this species has been recognized as distinct (even if under misapplied names) since late 19th century.  Under the name <i>S. brasiliensis</i>, it has been reported to reach one meter in total length and weigh up to 30 kg, consequently, one of the largest known Characiformes; piscivorous; undertakes reproductive migrations during the rainy season; juveniles (< 600 g) were collected in marginal lagoons of the rio São Francisco, an indication that these are recruiting habitats for the species; one of the main targets of the commercial and amateur fisheries in the middle rio São Francisco basin (Ref. 75797).