A newly discovered lizard in Thailand looks like it flew straight out of a fantasy series. Scientists have named the small, yellowish reptile Acanthosaura syrax, after the dragon Syrax from House of the Dragon, because the creature shares surprising traits with its fictional namesake.
The lizard lives only in a narrow band of high-elevation evergreen forest in Mae Wong National Park, in western Thailand's Tak-Kamphaeng Phet Province. Researchers found it above 1,300 meters and nowhere else. The discovery brings the number of known species in the mountain horned dragon genus Acanthosaura to 23.
A Dragon's Namesake: Yellow, Small, and Fertile
In the TV series, Syrax is known for her yellow color, smaller size compared to other dragons, and high egg production. The real lizard mirrors all three. Acanthosaura syrax has yellowish-green scales, ranks among the smallest species in its genus, and lays relatively large clutches of eggs for its body size.
The scientists, led by Poramad Trivalairat from Chulabhorn Royal Academy and Kasetsart University, proposed the English common name "Syrax mountain horned dragon" and a Thai name with the same meaning.
Beyond its name, the species stands out for having the smallest neck and back crest scales ever documented in the genus. Unlike several close relatives, it lacks a black patch around the eye and instead shows a distinctive dark collar marking.
DNA Confirms a Unique Lineage
Genetic analysis of two genes confirmed that A. syrax is distinct from its closest relative, A. lepidogaster, and from all other recognized species in the group. The rugged mountain landscape naturally separates its populations, which could make the species especially vulnerable if its habitat faces additional pressure.
The researchers are urging stronger protection for the high-elevation forests of Mae Wong. They suggest A. syrax could become a flagship species for conservation in the region, joining other rare animals found there, including the Asian forest tortoise, Oldham's leaf turtle, and the Indochinese tiger.
The study was published in the open-access journal ZooKeys.
A small lizard with a dragon's name now carries the weight of a larger mission: protecting the last patches of its mountain home.
