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Mayes, M.A. ; Brooks, D.R. and Thorson, T.B. (1981). Two New Tetraphyllidean Cestodes from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in the Itacnai River, Brazill. Proceedings of the Helminthological Society of Washington. 48(1): 38-42.
Mayes, M.A. ; Brooks, D.R. and Thorson, T.B. (1981). Two New Tetraphyllidean Cestodes from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in the Itacnai River, Brazill. Proceedings of the Helminthological Society of Washington. 48(1): 38-42.
