Ricardo S. Rosa; Hugo P. Castello; Thomas B. Thorson (1987). "Plesiotrygon iwamae, a New Genus and Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae)". Copeia. 1987 (2): 447–458. doi:10.2307/1445783. JSTOR1445783.
etyfish.org
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Ricardo S. Rosa; Hugo P. Castello; Thomas B. Thorson (1987). "Plesiotrygon iwamae, a New Genus and Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae)". Copeia. 1987 (2): 447–458. doi:10.2307/1445783. JSTOR1445783.