References
Alonso, F., Mirande, J.M. & Pandolfi, M. (2015) Gross anatomy and histology of the alimentary system of Characidae (Teleostei: Ostariophysi: Characiformes) and potential phylogenetic information. Neotropical Ichthyology, 13, 273–286. https://doi.org/10.1590/1982-0224-20140137
Artigas-Azas, J.M. (2018) Rocio gemmata Contreras-Balderas & Schmitter-Soto, 2007: a subjective junior synonym of R. octofasciata. Cichlid News, 27, 22–27.
Barrientos-Villalobos, J., Schmitter-Soto, J.J. & Espinosa de los Monteros, A. (2018) Several subspecies or phenotypic plasticity? A geometric morphometric and molecular analysis of variability of the Mayan Cichlid Mayaheros urophthalmus in the Yucatan. Copeia, 106, 268–278. https://doi.org/10.1643/ci-17-657
Eschmeyer, W.N., Fricke, R. & Van Der Laan, R. (2018) Catalog of Fishes: genera, species, references. California Academy of Sciences. Available from: https://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 10 July 2018)
Kullander, S.O. (1983) s.n. In: A phylogeny and clasification of the South American Cichlidae (Teleostei: Perciformes). Ph.D. Thesis. Swedish Museum of Natural History, Uppsala, pp. 461–498.
Mayden, R.L. (1997) A hierarchy of species concepts: the denouement in the saga of the species problem. In: Claridge, M.F., Dawah, H.A. & Wilson, M.R. (Eds.), Species: The Units of Biodiversity. Chapman & Hall, London, pp. 381–423.
Miller, N. (1907) The fishes of the Motagua river, Guatemala. Bulletin of the American Museum of Natural History, 23, 95–123.
Minckley, W.L., Miller, R.R., Barbour, C.D., Schmitter-Soto, J.J. & Norris, S.M. (2005) Historical Ichthyogeography. In: Miller, R.R., Minckley, W.L. & Norris, S.M. (Eds.), Freshwater Fishes of México. University of Chicago Press, Chicago, Illinois, pp. 535.
Schmitter-Soto, J.J. (2007a) A systematic revision of the genus Archocentrus (Perciformes: Cichlidae), with the description of two new genera and six new species. Zootaxa, 1603 (1), 1–78. https://doi.org/10.11646/zootaxa.1603.1.1
Schmitter-Soto, J.J. (2007b) Phylogeny of species formerly assigned to the genus Archocentrus (Perciformes: Cichlidae). Zootaxa, 1618 (1), 1–50. https://doi.org/10.11646/zootaxa.1618.1.1
Schmitter-Soto, J.J. (2017) A revision of Astyanax (Characiformes, Characidae) in Central and North America, with the description of nine new species. Journal of Natural History, 51, 1331–1424. https://doi.org/10.1080/00222933.2017.1324050
Sexton, J.P., McIntyre, P.J., Angert, A.L. & Rice, K.J. (2009) Evolution and ecology of species range limits. Annual Review of Ecology, Evolution, and Systematics, 40, 415–436. https://doi.org/10.1146/annurev.ecolsys.110308.120317
Shih, C.-S. & Kao, Y.-W. (1995) Phylogenetic study of balistoid fishes based on intestinal coiling pattern. Acta Zoologica Taiwanica, 6, 41–56.
Slatkin, M. (1987) Gene flow and the geographic structure of natural populations. Science, 236, 787–792. https://doi.org/10.1126/science.3576198
Smith, S.D. (2014) Quantifying color variation: improved formulas for calculating hue with segment classification. Applications in Plant Sciences, 2, 1300088. https://doi.org/10.3732/apps.1300088
Stiassny, M.L.J. (1991) Phylogenetic intrarelationships of the family Cichlidae. In: Keenleyside, M.H.A. (Ed.), Cichlid Fishes—Behavior, Ecology and Evolution. Chapman & Hall, London, pp. 1–31.
Wiens, J.J. (1999) Polymorphism in Systematics and Comparative Biology. Annual Review of Ecology and Systematics, 30, 327–362. https://doi.org/10.1146/annurev.ecolsys.30.1.327
Yamaoka, K. (1985) Intestinal coiling pattern in the epilithic algal-feeding cichlids (Pisces, Teleostei) of Lake Tanganyika, and its phylogenetic significance. Zoological Journal of the Linnean Society, 84, 235–261. https://doi.org/10.1111/j.1096-3642.1985.tb01