Ribeiro-Prado, C.C. & Oddone, M.C. & de Amorim, A.F. & Capapé, C. (2009)
An abnormal hermaphrodite pelagic stingray Pteroplatytrygon violacea (Dasyatidae) captured off the southern coast of Brazil.
Cahiers de Biologie Marine, 50, 91–96
Ribeiro-Prado, C.C. & Oddone, M.C. & Gonzalez, M.M.B. & de Amorim, A.F. & Capapé, C. (2008)
Morphological abnormalities in skates and rays (Chondrichthyes) from off southeastern Brazil. (Anomalias morfológicas em raias (Chondrichthyes) da região Sul do Brasil).
Arquivos de Ciências do Mar, 41(2), 21–28