Trimeresurus malcolmi
Silhouette: Steven Traver · PhyloPic
In 3 days ~70% in a week ~90%
Trimeresurus malcolmi is a species of pit viper. The species is native to East Malaysia. Common names include: Malcolm's pitviper, Malcolm's tree viper, and Mt. Kinabalu pit viper. The specific name, malcolmi, is in honor of British herpetologist Malcolm Arthur Smith.
The scalation of Trimeresurus malcolmi includes 19 rows of dorsal scales at midbody, 163-174 ventral scales, 64-81/61-64 subcaudal scales in males/females, and 8-9 supralabial scales. It can also wiggle its tail back and forth when threatened.
Trimeresurus malcolmi is known by several common names, including Kinabalu green pit viper, Malcolm's pitviper, Malcolm's tree viper, Mt. Kinabalu pit viper, and Malcolm's pit viper. Trimeresurus malcolmi is found in East Malaysia at elevations of 1,000–1,600 metres (3,280–5,250 feet). The type locality given is "Sungii River, near Bundutuan, Mount Kinabalu, British North Borneo Sabah, at an altitude circa 3,000 feet [914 m]".
The preferred natural habitat of Trimeresurus malcolmi is forest. Trimeresurus malcolmi is oviparous. Das, I... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kinabalu Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Malcolm’s Pitviper sighting in Kinabalu Park on a given day, based on 78 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 69 reptiles we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
December and January
In those months about 50% of wildlife watchers report a Malcolm’s Pitviper in Kinabalu Park on a given day, against under 5% in November, the lowest month.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Malcolm’s Pitviper sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Kinabalu Park, in our data
Kinabalu Park is the only park on Wallace's Line with enough records to rate Malcolm’s Pitviper sightings: about 30% of wildlife watchers there report one on a given day.
Same genus: Trimeresurus
The closest relatives of the Malcolm’s Pitviper that you can see in Kinabalu Park (genus Trimeresurus, Asian Lanceheads) are Sabah Bamboo Pitviper (about 40%) and Sumatra Pit Viper (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Malcolm’s Pitviper is recorded against all the reptiles logged in Kinabalu Park (78 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.
