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Range DescriptionThe range encompasses southern Texas, Mexico, northern Guatemala, and Belize (Conant and Collins 1991, Lee 1996). The range of S. serrifer (sensu lato) is substantially larger than that of S. s. cyanogenys (or S. cyanogenys). The range is Mexico is several disjunct populations representing several subspecies. Mexican range includes north Coahuila, Nuevo Leon, to southern Tamaulipas, Northern Veracruz, and northern Yucatan Peninsula, and central Chiapas. It occurs from 700 to 2,300 m asl.