MAYES, M.A. & BROOKS, D.R. & THORSON, T.B. (1981)
Potamotrygonocotyle tsalickisi, new genus and species (Monogenea: Monocotylidae) and Paraheteronchocotyle amazonensis, new genus and species (Monogenea: Hexabothriidae) from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in northwestern Brazil. Proceedings of the Biological Society of Washington, 94: 1205–1210