Ceylon Pit Viper

Ceylon Pit Viper

Craspedocephalus trigonocephalus

80–90% · Very likely
overall probability at Sinharaja Forest Reserve

Closest Relatives at Sinharaja Forest Reserve

Lowland Hump-nosed Viper
NT

Lowland Hump-nosed Viper

🌅 Crepuscular Reptile

Hypnale zara

40–50% · Likely
Russell's Viper
LC

Russell's Viper

Reptile

Daboia russelii

10–20% · With luck
Hump-nosed Viper
LC

Hump-nosed Viper

Reptile

Hypnale hypnale

Insufficient data

📅 Monthly Probability

80–90
Jan
80–90
Feb
80–90
Mar
80–90
Apr
80–90
May
70–80
Jun
80–90
Jul
80–90
Aug
80–90
Sep
70–80
Oct
80–90
Nov
80–90
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

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 Probability
1 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
80–90%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Ceylon Pit Viper in Sinharaja Forest Reserve?

About 84% of visitor-days record a Ceylon Pit Viper sighting in Sinharaja Forest Reserve, based on 229 observer-days of citizen-science data from GBIF.

When is the best time to see Ceylon Pit Viper in Sinharaja Forest Reserve?

September has the highest sighting rate for Ceylon Pit Viper in Sinharaja Forest Reserve in our monthly data.

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