Crenicichla niederleinii
Crenicichla niederleinii is a species of cichlid native to South America. It is found in the Paraná River basin, in tributaries of the upper Paraná River in Argentina, Brazil and Paraguay. This species reaches a length of . The fish is named in honor of German botanist Gustav Niederlein (1858–1924), who was invited by the Argentinean ministry of agriculture to organize a herbarium, whereby he obtained the type specimen. 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. niederleinii
Fish of Argentina
Freshwater fish of Brazil
Fish of Paraguay
Taxa named by Eduardo Ladislao Holmberg
Fish described in 1891