Snake Species: Ophryacus spp., Mexican horned pitvipers
Distribution of Terrestrial Snakes in Mexico and Central America
Ophryacus smaragdinus
| Mexico (without Baja California) | C+S | Varacruz, Hildago, Puebla, Oaxaca |
Ophryacus sphenophrys
| Mexico (without Baja California) | S | Oaxaca |
Ophryacus undulatus
| Mexico (without Baja California) | C+S | Guerrero, Oaxaca, Puebla, Hildago, Veracruz |