Cichla ocellaris, sometimes known as the butterfly peacock bass (“peacock bass” is also used for some of its relatives), is a very large species of cichlid from South America, and a prized game fish. It reaches 74 centimetres (29 in) in length. It is native to the Marowijne and Essequibo drainages in the Guianas, and the Branco River in Brazil.