Crenicichla lacustris
Crenicichla lacustris is a species of cichlid native to South America. It is found in the coastal drainages of southeastern and eastern Brazil. And is reported from Argentina. This species reaches a length of . References

Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. lacustris
Fish of Argentina
Freshwater fish of Brazil
Taxa named by François-Louis Laporte, comte de Castelnau
Fish described in 1855