Bellay, S., Takemoto, R.M., Yamada, F.H. and 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 (Apr. 2009), 57–66. DOI:https://doi.org/10.11646/zootaxa.2081.1.4.