[Last updated: 19 July 2023]
Ptyas korros (Indo-Chinese Rat Snake)
Thais say: (ngoo sing baan)
Length: Adults are just over 1 meter, but can reach near 2 meters.
Range: All over Thailand and most of Asia including Burma (Myanmar), Cambodia, China, Hong Kong, India, Bangladesh, Indonesia, Laos, Taiwan, Thailand, Vietnam, Western Malaysia, and Singapore.
Habitat: Anywhere rats and lizards exist in abundance. They aren’t found on hills or in mountains, usually just the low-lying areas where people and garbage are.
Active Time? Diurnal – active during daylight hours.
Food: Rats and other rodents, frogs and lizards. Much prefer rats. These are primarily rodent eaters and they vary little from their diet because there are usually plenty of rats or other rodents available.
Defensive Behavior: Will flee very quickly if given the chance. If agitated, rat snakes bite quickly. Some of them will calm down enough that they can be free-handled without repetitive bites.
Venom Toxicity: No venom that is harmful to humans.
Offspring: Eggs that hatch in early to middle May in Krabi, Thailand.
Notes: These are very common snakes, and are seen a lot because they prefer to be active during the daylight hours. They have very large eyes, which would make one think they can see well at night as well. These snakes can be held without striking (see the video below).
Ptyas korros can be silver, grey, or brown-orange looking in color. Scales on the posterior part of the body and on the tail are often yellow and edged with black. Underbelly is light yellow. Juvenile Indochinese rat snakes have a transverse series of round whitish spots or narrow yellow transverse bars.
Ptyas korros Scientific classification
Species: P. korros
Binomial name: Ptyas korros
(Classified by Schlegel in year 1837.)
My Indochinese Rat Snake Photos:
Another photo, showing same snake but darker exposure. It looks more brown toward the tail:
Indo-Chinese Rat Snake Video:
Juvenile Indo-Chinese Rat Snake Video
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