Photo 4330609, (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller

Attribution © Alan Rockefeller some rights reserved Uploaded by alan_rockefeller Source iNaturalist Associated observations Photos / Sounds 8 photos What Mexican Horned Pit Viper (Ophryacus undulatus) Observer alan_rockefeller Date July 22, 2016 09:34 AM PDT Place San Agustín Etla, Oaxaca, Mexico (Google, OSM) Date Added July 22, 2016 09:35 PM PDT Description Maybe something like Mixcoatlus melanurus. 10 IDs Research Grade View Sizes small medium large original Copyright