Filippo Gonzalez Neves dos Santos, A.; Neves dos Santos, L.; Gerson Araújo, F. Digestive Tract Morphology of the Neotropical Piscivorous Fish Cichla Kelberi (Perciformes: Cichlidae) Introduced into an Oligotrophic Brazilian Reservoir. Rev. Biol. Trop. 2011, 59, 1245-1255.