Shibuya, Akemi, and Jansen Zuanon. 2013. “Catfishes As Prey Items of Potamotrygonid Stingrays in the Solimões and Negro Rivers, Brazilian Amazon”. Biota Neotropica 13 (1). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/1088.