A new species of lizard has been identified in the mountainous regions of western Thailand, named in tribute to a character from HBO’s popular series, House of the Dragon. This recently discovered lizard has been classified as Acanthosaura syrax, referring specifically to Syrax, the dragon belonging to Queen Rhaenyra Targaryen in the show.
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The lizard, which falls under the category of mountain horned dragons, showcases a vibrant yellow coloration reminiscent of its namesake. Described in a study published on July 31 in the journal ZooKeys, the new species is notably smaller than other members of its genus and exhibits a high reproductive capacity, factors that also inspired its distinctive name.

In the fictional world of House of the Dragon, Syrax is portrayed as a relatively smaller, mustard-hued dragon who plays a significant maternal role, nurturing the younger dragons in the narrative. The character’s loyalty to her rider has made her a favourite among fans, highlighting the bond between them—a theme reflected in the lizard’s naming process.
The researchers involved in this discovery have recommended that Acanthosaura syrax be widely referred to as the “Syrax mountain horned dragon” in English, while proposing the Thai name “King Ka Khaow Naam Lek Syrax” (กิ้งก่าเขาหนามเล็กไซแรกซ์). These distinctive names underscore both the lizard’s unique characteristics and its connection to popular culture.
Acanthosaura syrax has only been documented in the fragmented high-altitude forests of Mae Wong. Due to the challenging terrain of the region, the habitat of this newly identified lizard is under threat, prompting the study’s authors to call for stronger conservation measures. The team hopes that A. syrax will become a vital symbol for the region, raising awareness and support for the preservation of its unique ecosystem.
Mountain horned dragons are identifiable by their characteristic spiny crests that run along their necks and backs. The discovery of A. syrax has increased the recognised number of species within the Acanthosaura genus to 23, reflecting a growing interest in the biodiversity of these unique reptiles.
The researchers also indicated that further exploration of adjacent mountain ranges could reveal the full extent of A. syrax’s distribution and uncover additional undiscovered species that may exist within the northwestern highlands. This prospect for future study aligns with the pressing need to understanding and conserve the habitat where these species thrive.
The naming of Acanthosaura syrax coincided with the ongoing popularity of House of the Dragon, which concluded its third season on August 9. As the series delves deeper into the political strife surrounding Rhaenyra Targaryen’s reign, the connection between the lizard and the show serves to remind audiences of the intricate ties between fantasy narratives and real-world conservation issues.
In an age where environmental concerns are increasingly pressing, the hope is that the synergy between the allure of fictional worlds and the natural world can inspire proactive efforts toward ecological preservation, ensuring that species like A. syrax are safeguarded for future generations. The study underlines that the enchanting aspects of our environment can stimulate both scientific inquiry and a deeper commitment to conservation.
