Eschmeyer, W. N. (ed.) violacea, Trygon互联网档案馆的存檔,存档日期2012-02-21.. Catalog of Fishes electronic version (February 19, 2010). Retrieved on March 28, 2010.
de Siqueira, A.E. & V.B. de Sant'Anna. Data on the pelagic stingray, Pteroplatytrygon violacea (Bonaparte, 1832) (Myliobatiformes: Dasyatidae). Brazilian Journal of Oceanography. 2007, 55 (4): 323–325. doi:10.1590/S1679-87592007000400008.
Forselledo, R.; M. Pons; P. Miller & A. Domingo. Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic. Aquatic Living Resources. 2008, 21 (4): 357–363. doi:10.1051/alr:2008052.
Fowler, H.W. Notes on Batoid Fishes. Proceedings of the Academy of Natural Sciences of Philadelphia (Academy of Natural Sciences). 1910-04, 62 (2): 468–475. JSTOR 4063435.
Eschmeyer, W. N. (ed.) violacea, Trygon互联网档案馆的存檔,存档日期2012-02-21.. Catalog of Fishes electronic version (February 19, 2010). Retrieved on March 28, 2010.