Ovophis monticola
Silhouette: Steven Traver · PhyloPic
In 3 days ~40% in a week ~70%
Ovophis monticola, commonly known as the Chinese mountain pit viper, is a pit viper species found in Asia. Currently, two subspecies are recognized, including the nominate subspecies described here. Recent taxonomic work suggests that most of these should be considered as separate species. IUCN has already evaluated O. m. makazayazaya as Ovophis makazayazaya.
Total length of males 49 cm (19+1⁄4 inches), of females 110 cm (43+1⁄4 inches); tail length of males 8 cm (3+1⁄8 inches), of females 15 cm (5+7⁄8 inches). The head has a short snout, a little more than twice the length of the diameter of the eye. The crown is covered by small scales rather than large shields, while the scales are usually smooth, feebly imbricate. The first upper labial is not fused to the nasal and is completely separated by a suture. The supraoculars are large, 5-9 scales in a line between them. The internasals are usually not in contact with one another, separated by 2 small suprapostrostral scales. There are 7-10 upper labials, the second of which is usually fused to the scale bordering the facial sensory pit anteriorly. The fourth and fifth upper labials are beneath the eye, but separated... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
No species of the same family or order lives in Doi Inthanon National Park, so these are its closest relatives here: other reptiles.
Possible
About 20% of wildlife watchers report a Chinese Mountain Pit Viper sighting in Doi Inthanon National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 30 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June
In that month about 40% of wildlife watchers report a Chinese Mountain Pit Viper in Doi Inthanon National Park on a given day, against under 5% in March–April, July, September and December–January, the lowest months. That is one of Doi Inthanon National Park's wettest months, with about 270 mm of rain against 20 mm in February.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Chinese Mountain Pit Viper sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Doi Inthanon National Park, in our data
Doi Inthanon National Park is the only park on Wallace's Line with enough records to rate Chinese Mountain Pit Viper sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Chinese Mountain Pit Viper is recorded against all the reptiles logged in Doi Inthanon National Park (13 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.
