Figure 1 from: Velázquez-Veláquez E, López-Vila JH, Gómez-González AE, Romero-Berny EI, Lievano-Trujillo JL, Matamoros WA (2016) Checklist of the continental fishes of the state of Chiapas, Mexico, and their distribution. ZooKeys 632: 99-120. https://doi.org/10.3897/zookeys.632.9747

Figure 1 - Geographical units for the study of the distribution of the fish fauna of the state of Chiapas: I (Usumacinta-Chixoy) II (Usumacinta-Lacantún) III (Usumacinta-Catazajá) IV (Usumacinta-Jataté) V (Grijalva-Tulijá) VI (Grijalva-Teapa) VII (Grijalva-Peñitas) VIII (Grijalva-Malpaso), IX (Grijalva-Chicoasén) X (Grijalva-La Angostura) XI (Costa-Itsmo) XII (Costa-Soconusco).