Borneo Pit Viper
Craspedocephalus borneensis
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyViperidae (Vipers)
- GenusCraspedocephalus
- SpeciesCraspedocephalus borneensis (Borneo Pit Viper)
About the Borneo Pit Viper
Craspedocephalus borneensis, commonly known as the Bornean pit viper, is a venomous pit viper species endemic to the island of Borneo. No subspecies are currently recognized. Scalation includes 19–21 rows of dorsal scales at midbody, 152–180 ventral scales, undivided anal scale, 45–58 divided subcaudal scales, and 8–11 supralabial scales.
Its coloration varies. Individuals may be brown with darker brown saddles, or light brown with a few darker markings, or even bright yellow with darker markings. Adults may attain 83 cm (33 in) in snout-vent length (SVL).
Craspedocephalus borneensis is found on the island of Borneo (Brunei, Kalimantan, Sabah, Sarawak) as well as in the Natuna Islands. The type locality given is "Sarawack" (= Sarawak, Borneo). It is found in forests below an altitude of 1,130 m (3,710 ft). Even though the tail is prehensile, adults are usually on the forest floor. Juveniles may be in low vegetation.
Craspedocephalus borneensis preys upon small rodents and small birds. Whether this species of Craspedocephalus lays eggs or bears live young is as yet unknown. Wikipedia →
Closest Relatives at Sepilok
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kinabalu Park | 🇲🇾 Malaysia | |
| 2 | Sepilok | 🇲🇾 Malaysia | |
| 3 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
Quick answers
What are the chances of seeing a Borneo Pit Viper in Sepilok?
About 10% of wildlife watchers report a Borneo Pit Viper sighting in Sepilok, based on 12 verified sightings from GBIF citizen-science data.
When is the best time to see Borneo Pit Viper in Sepilok?
April has the highest sighting rate for Borneo Pit Viper in Sepilok in our monthly data.