Crenicichla percna
Crenicichla percna is a species of cichlid native to South America. It is found in the Amazon River basin, in the Xingu River at Cachoeira do Espelho and Altamira, Brazil. This species reaches a length of . References

percna
Freshwater fish of Brazil
Fish of the Amazon basin
Taxa named by Sven O. Kullander
Fish described in 1991