Snake Species: Cerrophidion spp., Montane pitvipers Distribution of Terrestrial Snakes in Mexico and Central America Cerrophidion godmani Guatemala X Mexico (without Baja California) SE Chiapas, Oaxaca Cerrophidion petlalcalensis Mexico (without Baja California) E Cerrophidion sasai Costa Rica C+E Panama W Cerrophidion tzotzilorum Mexico (without Baja California) S Cerrophidion wilsoni El Salvador X Honduras E Nicaragua NW