posted on 2013-02-07, 00:59authored byJuan Francisco Ornelas, Victoria Sosa, Douglas E. Soltis, Juan M. Daza, Clementina González, Pamela S. Soltis, Carla Gutiérrez-Rodríguez, Alejandro Espinosa de los Monteros, Todd A. Castoe, Charles Bell, Eduardo Ruiz-Sanchez
(A) Isthmus of Tehuantepec (east and west of the isthmus). (B) Los Tuxtlas (isolated from the Sierra Madre Oriental). (C) Isthmus 2 (the Chiapas and the Los Tuxtlas populations separated from populations west of the Isthmus of Tehuantepec). (D) Chiapas Central Depression (populations in Chiapas separated by the Central Depression).