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Ottoman Viper

Montivipera xanthina

The "rock vipers"

The Ottoman viper and their relatives form a group of snakes called the rock vipers. The Saint Louis Zoo is a world leader in breeding and caring for rock vipers from western Asia.

Down low and high up

The Ottoman viper can be found at lower elevations on islands in the Aegean Sea, as well as up to 3,000 meters above sea level in cool mountains.

Threat Level

  • Unknown
  • Common
  • Near Threatened
  • Threatened
  • Endangered
  • Critically Endangered
  • Extinct in the Wild


The Ottoman Viper is widespread and abundant.


Western Turkey, Eastern Greece, Islands in the Aegean Sea


Rocky hillsides, dry forest

Find this animal in Historic Hill


Historic Hill

Historic Hill is a lovely stroll through one of the oldest parts of the Saint Louis Zoo. From the 1904 World’s Fair Flight Cage to the Spanish architectural flavor of the 1920s in the Bird House, Primate House and Herpetarium to the finishing touches of our thoroughly modern exhibits, this area of the Zoo has a unique ambiance and a nostalgic history that make it a great destination.

Explore Historic Hill