Crenicichla gillmorlisi, a new species of cichlid fish (Teleostei: Cichlidae) from the Paraná river drainage in Paraguay.

Crenicichla gillmorlisi, new species, is described from the río Acaray, a right bank tributary to the río Paraná. It is most similar to C. mandelburgeri in proportional measurements and meristics, but differs in colour pattern, adults having the body covered with small spots.