Říčan, O., Piálek, L., Almirón, A. and Casciotta, J. (2023) “Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex”, European Journal of Taxonomy, 879(1), pp. 38–63. doi: 10.5852/ejt.2023.879.2159.