Crenicichla tapii.
Crenicichla sp. Iquazu big lips (or sp. botox) -> Crenicichla tuca.
Finally some discussion on mixed material in the description of C. yaha resulting that they should now be called C. tesay and a new description is needed for the subset of material in the yaha description. This is very unclear for me and I would need some real hand holding to get it.

Lubomír Piálek, Klára Dragová, Jorge Casciotta, Adriana Almirón, and Oldřich 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 5: 5-27.