Figure 1.

Sampling sites in northwestern Mexico from which the Campostoma ornatum specimens were obtained. Numbers on the map correspond to the numbers in Table 1. 1: El Cuarto, 2: Olote, 3: Peñon Blanco, 4: Covadonga, 5: Atotonilco, 6: La Quinta, 7: Sain Alto, 8: Rio Primero, 9: Satevo, 10: Ocampo, 11: Porvenir, 12: Coronado, 13: Bocoyna, 14: Urique, 15: Rimichurachi, 16: Oteros, 17: Basaseachic, 18: Concheño, 19: La Tauna, 20: Tomochic, 21: Papigochic, 22: Terapa, 23: Huachinera, 24: Hondables, 25: Agua Prieta, 26: Cabullona, 27: Ojo de Agua, 28: Casas Grandes, 29: Ignacio Zaragoza and 30: Santa Clara. Colours of circles are related to group colours in Figure 2. This map has contours marked at 200 m intervals.

Domínguez-Domínguez et al. BMC Evolutionary Biology 2011 11:153   doi:10.1186/1471-2148-11-153
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