Ceratophora stoddartii
Silhouette: PhyloPic
In 3 days >90%
The rhino-horned lizard (Ceratophora stoddartii), also commonly known as Stoddart's unicorn lizard and the mountain horned agama, is a species of lizard in the family Agamidae. The species is endemic to Sri Lanka. It is called kagamuva angkatussa-කගමුව අං කටුස්සා in Sinhala.
The specific name, stoddartii, is in honor of Charles Stoddart, who was a British army officer and diplomat. C. stoddartii is found widespread in montane forests of central Sri Lanka. Localities from which it has been recorded include Nuwara Eliya, Hakgala, Pattipola, Ohiya, Horton Plains National Park, Hewaheta, Dimbula, Agarapathana, Peak Wilderness Sanctuary, Galway's Land National Park, Knuckles, Galaha, Namunukula, Pidurutalagala, Haputale, Balangoda, Maratenna, Loolecondera, Moratiya state forest in Aranayake, Kegalla and Sandaraja Wana Arana in Kegalla.
The head of C. stoddartii is oval, and longer than wide. The rostral appendage is long, horn-like, about two thirds the length of the snout in males, but is reduced or even absent in females. The lamellae under the fourth toe number 23–27. The dorsum is brownish green or yellowish brown. The... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Horton Plains National Park | 🇱🇰 Sri Lanka |
More parks will be added in future updates.
Very likely
About 70% of wildlife watchers report a Mountain Horned Agama sighting in Horton Plains National Park on a given day, based on 199 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to over 90%, if each day is a fresh chance.
April and October
In those months about 80% of wildlife watchers report a Mountain Horned Agama in Horton Plains National Park on a given day, against about 40% in June, the lowest month. Those are among Horton Plains National Park's wettest months, with about 270 mm of rain a month against 80 mm in March.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Mountain Horned Agama sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Horton Plains National Park, in our data
Horton Plains National Park is the only park on Wallace's Line with enough records to rate Mountain Horned Agama sightings: about 70% of wildlife watchers there report one on a given day.
Same family: Agamidae
The closest relatives of the Mountain Horned Agama that you can see in Horton Plains National Park (family Agamidae, Dragons) are Black-cheek lizard (about 90%) and Common Green Forest Lizard (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mountain Horned Agama is recorded against all the reptiles logged in Horton Plains National Park (199 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
