Dhaman
DhamanDhamanDhamanDhaman

Dhaman

Ptyas mucosa

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
10–20% · With luck
overall probability at Yala National Park
8 Verified records at Yala National Park
November Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

Ptyas mucosa, commonly known as the Oriental rat snake, or Indian rat snake, is a common non-venomous species of colubrid snake found in parts of South and Southeast Asia. These are large snakes. Typical mature total length is around 1.5 to 1.95 m (4 ft 11 in to 6 ft 5 in) though some exceed 2 m (6 ft 7 in). The record length for this species was 3.7 m (12 ft 2 in), second only to their cousin Ptyas carinata among living colubrid snakes. Despite their large size, oriental ratsnakes are usually quite slender with even a specimen of 2 m (6 ft 7 in) commonly measuring 4 to 6 cm (1.6 to 2.4 in) only around in diameter. Furthermore, the average weight of ratsnakes caught in Java was around 877 to 940 g (1.933 to 2.072 lb), though larger males of over 2.3 m (7 ft 7 in) (which average mildly larger of the two sexes in the species) may easily weigh over 2.5 kg (5.5 lb). Wikipedia →

10–20% of wildlife watchers report a Dhaman sighting in Yala National Park, based on 8 days of visitor records from GBIF citizen-science data.

Closest Relatives at Yala National Park

Green Vine Snake
LC Endemic

Green Vine Snake

☀️ Diurnal Reptile

Ahaetulla nasuta

10–20% · With luck
Reddish Peninsular Cat Snake
LC

Reddish Peninsular Cat Snake

🌅 Crepuscular Reptile

Boiga forsteni

Insufficient data
Common Bronzeback Tree Snake
LC

Common Bronzeback Tree Snake

☀️ Diurnal Reptile

Dendrelaphis tristis

Insufficient data
Indian Flying Snake
LC

Indian Flying Snake

Reptile

Chrysopelea taprobanica

Insufficient data
Banded kukri snake
LC

Banded kukri snake

Reptile

Oligodon arnensis

Insufficient data

📅 Monthly Probability

20–30
Jan
20–30
Feb
<5
Mar
10–20
Apr
10–20
May
10–20
Jun
<5
Jul
20–30
Aug
<5
Sep
<5
Oct
30–40
Nov
<5
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙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 Satpura National Park 🇮🇳 India
20–30%
2 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
10–20%
3 Yala National Park 🇱🇰 Sri Lanka
10–20%
4 Minneriya National Park 🇱🇰 Sri Lanka
10–20%
5 Chitwan National Park 🇳🇵 Nepal
10–20%
6 Sundarbans National Park 🇮🇳 India
Insufficient data
7 Bandhavgarh National Park 🇮🇳 India
Insufficient data
8 Royal Bardia National Park 🇳🇵 Nepal
Insufficient data
9 Periyar National Park 🇮🇳 India
Insufficient data
10 Kanha National Park 🇮🇳 India
Insufficient data
11 Mudumalai National Park 🇮🇳 India
Insufficient data
12 Wilpattu National Park 🇱🇰 Sri Lanka
Insufficient data
13 Nagarhole National Park 🇮🇳 India
Insufficient data
14 Ba Be National Park 🇻🇳 Vietnam
Insufficient data
15 Kaziranga National Park 🇮🇳 India
Insufficient data
16 Keoladeo National Park 🇮🇳 India
Insufficient data
17 Jim Corbett National Park 🇮🇳 India
Insufficient data
18 Bandipur National Park 🇮🇳 India
Insufficient data
19 Ranthambore National Park 🇮🇳 India
Insufficient data
20 Cat Tien National Park 🇻🇳 Vietnam
Insufficient data
21 Taroko National Park 🇹🇼 Taiwan
Insufficient data
22 Khao Yai National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Dhaman in Yala National Park?

About 18% of wildlife watchers report a Dhaman sighting in Yala National Park, based on 8 days of visitor records from GBIF citizen-science data.

When is the best time to see Dhaman in Yala National Park?

November has the highest sighting rate for Dhaman in Yala National Park in our monthly data.

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