Diversity and evolution of the Middle American cichlid fishes (Teleostei: Cichlidae)with revised classification
http://www.senckenberg.de/files/con...-1/01_vertebrate_zoology_66-1_rican_1-102.pdf
http://www.senckenberg.de/files/con...-1/01_vertebrate_zoology_66-1_rican_1-102.pdf