The Oriental ratsnake (Ptyas mucosa) is one of the most widespread and recognizable colubrids in Asia. Found across a wide range of environments, this species is known for its size, speed, and adaptability.
Unlike many commonly kept snakes, Ptyas mucosa is a highly active, diurnal species that relies on movement and visual awareness rather than ambush behavior. Its ability to thrive in both natural and human-altered environments has made it one of the most successful snakes in its range.
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🥈 QUICK FACTS
Quick Facts – Oriental Ratsnake (Ptyas mucosa)
• Scientific Name: Ptyas mucosa
• Common Name: Oriental Ratsnake
• Origin: South and Southeast Asia
• Size: 6–7+ feet
• Behavior: Diurnal, highly active, fast-moving
• Diet: Rodents, birds, reptiles, amphibians
NATURAL HISTORY
This non-venomous colubrid is commonly known as the Oriental Ratsnake or Indian Ratsnake. This species has a very large range across all of Asia. It is common for these snakes to reach 6’ and occasionally you will come across some very large 8’ers. If well fed, they can have a very thick build and are unbelievably strong. I have never had a snake firmly retain a probe during sex determination and not allow it to be removed until they decide to do so. These snakes have very good eyesight and are visual hunters. They are active during the day and prefer to eat birds, rodents and lizards. They are listed under CITES appendix II protection due to the massive numbers that are consumed by the skin trade. In China they are commercially bred for human consumption and here in Thailand they are well-known for being one of the best eating snakes in the forest.
CAPTIVE CARE/ACCLIMATION
I first imported these in 2008 and my first animals were actually morphs. In fact, I didn’t get sent any normal or wild-type mucosa until about four years later. Acclimating wildcaught animals can sometimes be challenging depending on their condition upon arrival because live animal suppliers are often sourcing these from skinners so you have to pay attention to hydrating new animals and dialing in their preferred food. Because they are so aware of their surroundings, I recommend no interaction after arrival and to provide quiet housing with little to no visual interference. Water bowls, hide boxes and a warm spot of about 86-87 will do the trick. I usually start offering food in the form of live rat pups and if I get any refusals I go to f/t chicks and quail. Once they start feeding and are acclimated, they will eat and eat. They have very fast metabolisms so I recommend feeding every 4-5 days. As a precaution, I will treat new arrivals for internal parasites with flagyl and panacur and everything always gets treated for mites.
BREEDING
My first breeding was normal to normal and my second breeding was a male sulfur/hypo bred to a normal. I had sold an albino to a big name youtuber and it just lived there alone so I brought a normal female there on breeding loan. After several months there was nothing happening and an employee told me that there really was zero attention being given to this pair in regards to conditioning these colubrids to breed. I took my female back and got her bred to my sulfur in a short amount of time with steady frequent meals. These babies were all normal 100% het sulfur. A local customer of mine bought a pair, raised them and bred them and produced sulfur and normal offspring….some of which I sold for him online and at expos. I started seeing a few people having success breeding mucosa and there were more wild-caught animals coming in my shipments so I felt I had put enough into the US hobby to where they should have gotten a foothold. If China was mass producing them commercially, I figured hobbyists could do it so I stepped away from mucosa to focus on other more rare colubrid snakes. These are probably the most prolific breeding snakes I have ever seen with triple clutches being easy to pull off if you feed the females hard enough. They will breed year round and the only thing that seems to trigger breeding is food and providing enough of it. Think small to moderate meals but every 4-5 days….or small meals every 3 days also works. The reproductive process moves quickly with these so I generally just paired constantly outside of feedings.
ESTABLISHING BABIES
I incubated eggs at around 80-81f and will take about 70 days to hatch. You can probably incubate them higher or lower and that will effect the length of time they take to hatch but I recommend that you avoid the higher temps due to kinking. The babies will almost always take live day-old pinks to start but they do like movement so live seems to be key. Any that are problematic feeders I will try scenting live pinky mice with house gecko. After animals have taken 2-3 meals I will usually try to get them switched over to f/t. Baby racks and baby boxes housed individually with a water bowl and hide are the basic parameters we use and same warm spot temps as the adults.
FINAL THOUGHTS
Ptyas mucosa is an extremely active and alert species that behaves more like a roaming predator than a stationary ambush snake. These snakes are constantly moving, exploring, and reacting to their environment. In captivity, they are highly responsive to movement and can be defensive when approached quickly. Their speed and awareness make them very different from more commonly kept species.
Feeding response is strong and immediate, and their behavior reflects that of a true daytime hunter. This combination of speed, intelligence, and adaptability makes them a species best suited for experienced keepers. In the last couple of years I have seen a good number of morph animals entering the market but very few captive breedings. I am not sure exactly why but it could be that there just isn’t enough interest in normal, wild-type colubrids. I suspect that morph animals will help get hobbyists more interested in this species. We continue sourcing very small numbers of normal and morph animals by special order in the hopes that these become better established in the hobby.
👉 For comparison with a more intense and larger species in the same genus, see our Greater Keeled Ratsnake (Ptyas carinata) care sheet