Ptyas (Asian Rat Snakes) — Wallace's Line

Species in this group

Ptyas multicincta

Daily sighting probability ~50% · Likely

LC

Ptyas mucosa

Daily sighting probability ~20% · Possible

NT

Ptyas korros

Daily sighting probability ~20% · Possible

LC

Ptyas fusca

Daily sighting probability ~20% · Possible

LC

Ptyas carinata

Daily sighting probability ~20% · Possible

LC

Ptyas major

Daily sighting probability ~10% · With luck

Daily sighting probability by month

Probability-weighted average across the group's species

~10%

Jan

~10%

Feb

~20%

Mar

~20%

Apr

~20%

May

~20%

Jun

~20%

Jul

~10%

Aug

~20%

Sep

~20%

Oct

~10%

Nov

~20%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Asian Rat Snakes

Warmer areas are where this group is recorded most often. Shaded: the known ranges of its 9 species, darker where more of them overlap (GARD, Roll et al. 2017 & Caetano et al. 2022). Our parks Our cities In captivity: 16 zoos & centres

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Cuc Phuong National Park	🇻🇳 Vietnam	1 of 6	~50%
	North China Green Snake			~50%
2	Khao Sok National Park	🇹🇭 Thailand	3 of 6	~40%
	Keeled Rat Snake			~20%
	Chinese Ratsnake			~20%
	Brown Rat Snake			~20%
3	Satpura National Park	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
4	Sinharaja Forest Reserve	🇱🇰 Sri Lanka	1 of 6	~20%
	Dhaman			~20%
5	Cat Tien National Park	🇻🇳 Vietnam	1 of 6	~20%
	Chinese Ratsnake			~20%
6	Kinabalu Park	🇲🇾 Malaysia	1 of 6	~20%
	Brown Rat Snake			~20%
7	Minneriya National Park	🇱🇰 Sri Lanka	1 of 6	~20%
	Dhaman			~20%
8	Khao Luang National Park	🇹🇭 Thailand	1 of 6	~20%
	Chinese Ratsnake			~20%
9	Yala National Park	🇱🇰 Sri Lanka	1 of 6	~20%
	Dhaman			~20%
10	Kaeng Krachan National Park	🇹🇭 Thailand	2 of 6	~20%
	Chinese Ratsnake			~10%
	Keeled Rat Snake			~10%
11	Khao Yai National Park	🇹🇭 Thailand	1 of 6	~20%
	Chinese Ratsnake			~20%
12	Danum Valley Conservation Area	🇲🇾 Malaysia	1 of 6	~10%
	Brown Rat Snake			~10%
13	Gunung Leuser National Park	🇮🇩 Indonesia	1 of 6	~10%
	Brown Rat Snake			~10%
14	Sepilok	🇲🇾 Malaysia	1 of 6	~10%
	Brown Rat Snake			~10%
15	Kinabatangan Wildlife Sanctuary	🇲🇾 Malaysia	1 of 6	~10%
	Brown Rat Snake			~10%
16	Doi Inthanon National Park	🇹🇭 Thailand	1 of 6	~10%
	Chinese Ratsnake			~10%
17	Taroko National Park	🇹🇼 Taiwan	1 of 6	~10%
	Chinese Green Snake			~10%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Lucknow	🇮🇳 India	1 of 6	~40%
	Dhaman			~40%
2	Thrissur	🇮🇳 India	1 of 6	~40%
	Dhaman			~40%
3	Jabalpur	🇮🇳 India	1 of 6	~40%
	Dhaman			~40%
4	Pune	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
5	Kalyan-Dombivli	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
6	Thiruvananthapuram	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
7	Colombo [Sri Jayawardenepura Kotte]	🇱🇰 Sri Lanka	1 of 6	~30%
	Dhaman			~30%
8	Coimbatore	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
9	Chandigarh	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
10	Dehradun	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
11	Bengaluru	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
12	Kozhikode	🇮🇳 India	1 of 6	~30%
	Dhaman			~30%
13	Kolkata	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
14	Kuala Lumpur	🇲🇾 Malaysia	2 of 6	~20%
	Keeled Rat Snake			~10%
	Brown Rat Snake			~10%
15	Yogyakarta	🇮🇩 Indonesia	1 of 6	~20%
	Dhaman			~20%
16	Kochi	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
17	Kollam	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
18	Hyderabad	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
19	Hong Kong	🇨🇳 China	2 of 6	~20%
	Dhaman			~10%
	Chinese Green Snake			~10%
20	Taipei	🇹🇼 Taiwan	2 of 6	~20%
	Chinese Green Snake			~10%
	Dhaman			~10%
21	Taichung	🇹🇼 Taiwan	1 of 6	~20%
	Dhaman			~20%
22	Mumbai	🇮🇳 India	1 of 6	~20%
	Dhaman			~20%
23	Guangzhou	🇨🇳 China	2 of 6	~10%
	Dhaman			~10%
	Chinese Green Snake			<5%
24	Chennai	🇮🇳 India	1 of 6	~10%
	Dhaman			~10%
25	Singapore	🇸🇬 Singapore	2 of 6	~10%
	Brown Rat Snake			~10%
	Keeled Rat Snake			~10%
26	Kaohsiung	🇹🇼 Taiwan	1 of 6	~10%
	Dhaman			~10%
27	New Delhi	🇮🇳 India	1 of 6	~10%
	Dhaman			~10%
28	Zhuhai [Macau]	🇨🇳 China	1 of 6	~10%
	Dhaman			~10%
29	Tuen Mun	🇨🇳 China	1 of 6	~10%
	Dhaman			~10%
30	Bangkok	🇹🇭 Thailand	1 of 6	<5%
	Dhaman			<5%

Zoos & Centres Where Found

#	Zoo / Centre	Country
1	Bondla Zoo	🇮🇳 India	In captivity
2	Nehru Zoological Park	🇮🇳 India	In captivity
3	National Zoological Park Delhi	🇮🇳 India	In captivity
4	Sanjay Gandhi Biological Park	🇮🇳 India	In captivity
5	National Zoo of Malaysia	🇲🇾 Malaysia	In captivity
6	Fort Worth Zoo	🇺🇸 United States	In captivity
7	Houston Zoo	🇺🇸 United States	In captivity
8	Thiruvananthapuram Zoo	🇮🇳 India	In captivity
9	Children's Park, Guindy	🇮🇳 India	In captivity
10	Dong Tam Snake Farm	🇻🇳 Vietnam	In captivity
11	Siam Serpentarium	🇹🇭 Thailand	In captivity
12	Snake Farm of Queen Saovabha Memorial Institute	🇹🇭 Thailand	In captivity
13	Exotarium Sosnowiec	🇵🇱 Poland	In captivity
14	Thrissur Zoo	🇮🇳 India	In captivity
15	Pata Zoo	🇹🇭 Thailand	In captivity
16	Zoológico La Era de las aves	🇪🇸 Spain	In captivity

Show all 16 Show fewer

Asian Rat Snakes

Species in this group

North China Green Snake

Dhaman

Chinese Ratsnake

Brown Rat Snake

Keeled Rat Snake

Chinese Green Snake

Daily sighting probability by month

When they're spotted

Where to see Asian Rat Snakes

Parks Ranked

Cities Ranked

Zoos & Centres Where Found