Bellay, S., Takemoto, R.M., Yamada, F.H. & Pavanell, G.C. (2009) Two new species of Sciadicleithrum (Monogenea: Dactylogyridae), gill parasites of Geophagus proximus (Castelnau) (Teleostei: Cichlidae), from the upper Paraná River floodplain, Brazil. Zootaxa, 2081 (1), 57–66.