López Fuentes, P., Anzueto Calvo , M. de J., Velázquez Velázquez , E., Matamoros, W. A. . and Salgado Maldonado, G. (2021) “First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico”, UNED Research Journal, 13(1), p. e3266. doi: 10.22458/urj.v13i1.3266.