crotalus molossus is a venomous pit viper species found in the southwestern united states and mexico.

animal animals arboreal background blacktailed bothriechis closeup cloud common costa crotalus dangerous exotic eye fangs forest found green head lateralis macro mexico molossus monteverde names nature northern pit poisonous rattler rattlesnake reptile rica scale scales serpent side slither snake snakes southwestern species states striped tree tropical united venom venomous viper wild wildlife yellow