FishBase References for Castex, M.N. and D.R. Yagolkowski, 1970

Ref. No.	Title
40310	Note on two fresh-water sting-rays species (Condrichthyes, Potamotrygonidae): a. Redescription of Potamotrygon schroederi, Yepez 1957. b. Designation of two paratypes of P. pauckei, Castex 1963 and their description.

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