Allmänt

Etymologi
"tuca" från tucanfågel med referens till artens stora läppar som kan liknas med tucanfågelns stora näbb.

Litteratur

Piálek, Lubomír & K. Dragová, J. Casciotta, A. Almirón & O. Říčan. 2015. "Description of two new species of Crenicichla (Teleostei: Cichlidae) from the lower Iguazú River with a taxonomic reappraisal of C. iguassuensis, C. tesay and C. yaha". Historia Natural. v. 5(n. 2), pp. 5-27

Lucanus, Oliver. 2012. "Neue Hechtbuntbarsche aus Argentinien". Amazonas. v. 40, pp. 52-57

Piálek, Lubomír & O. Říčan & J. Casciotta & A. Almirón & J. Zrzavy. 2012. "Multilocus phylogeny of Crenicichla (Teleostei: Cichlidae) with biogeography of the C. lacustris group: Species flocks as a model for sympatric speciation in rivers". Molecular Phylogenetics and Evolution. v. 62(n. 1), pp. 46-61

Renesto, Erasmo & C.H. Zawadzki, E. Revaldaves. 2001. "Biochemical Taxonomy of Crenicichla (Pisces: Perciformes: Cichlidae) of the Iguaçu River, Brazil". Brazilian Archives of Biology and Technology. v. 44(n. 1), pp. 15-22