Category Archives: Venomous

Common Thailand Venomous Snakes – Photos, Videos, Links

Thailand’s 3 Very Common Venomous Snakes

Thailand has approximately 60 snake species that are considered venomous and potentially dangerous to human beings. Below are photos, videos, and links to more information on some of the most common snakes that fit this description.

Calloselasma rhodostoma. Malayan Pit Viper. 

Very dangerous. Potentially deadly. This snake is active at night (nocturnal) and during dawn and dusk (crepuscular) and during rainy or very overcast weather.

Info Sheet – Malayan Pit Viper (click)

Malayan pit viper with eggs
Calloselasma rhodostoma (Malayan Pit Viper) with eggs.
Small Malayan pit viper (Calloselasma rhodostoma) with a red tint in a plastic bottle for relocation.
Small Malayan Pit Viper in water bottle.

Adult fully grown Malayan pit viper from Southern Thailand. (Calloselasma rhodostoma)

The following is a video showing the color variations for the Malayan pit viper. These are all from Southern Thailand, so depending where you are in the country, yours may look similar or slightly different. The very triangle head shape and triangle pattern on the top back will not change.

1 Video – Malayan Pit Viper (Calloselasma rhodostoma) Color Variations:


Naja kaouthia. Monocled Cobra.

Very dangerous and potentially deadly. This snake is most active during the daytime, but is also sometimes found to be active at night. During some of the hottest days they can be seen regularly crossing the roads. Around 3 pm. seems to be a very active time for them.

Info Sheet – Monocled Cobras (click)

A small (juvenile) monocled cobra from Krabi province in Thailand's south. This is a potentially deadly snake that should be treated with great care and respect. Naja kaouthia.
Juvenile Monocled Cobra – quite deadly when small too.

Thailand monocled cobra baby on the road in Siam. Naja kaouthia.

3 Videos of the Monocled Cobra (Naja kaouthia):

1. Hatchling Monocled Cobras:

2. Jackie, a Burmese National, Catching a Monocled Cobra in a Local’s Yard:

3. Tom (Dtom, Dtammy) After Bitten in Thigh by Monocled Cobra:


Rhabdophis subminiatus. Red-necked Keelback.

This colorful snake was often kept as a pet and hand-held before it was realized they pack a deadly bite. Their venom is as strong as a banded krait on the LD scale. They are active during daylight hours and are commonly found across Thailand.

Keep in mind, the smaller the snake, generally the more quickly it can strike.

Info Sheet – Red-necked Keelback (click)

Red necked keelback (Rhabdophis subminiatus) is now classified as a deadly venomous snake.
Red Necked keelback – do not keep as a pet – can cause serious kidney damage.
Red Necked Keelback Snake, venomous, Thailand and southeast Asia.
A beautiful snake, usually under 1 meter, not very aggressive, but potentially capable of deadly bites.

1 Video – Red-necked Keelback (Rhabdophis subminiatus) Crossing the Road:

Malayan Krait – Blue Krait – Highly Toxic Venom

White and black Malaysian banded krait. Very dangerous. Very toxic venom to humans.
Bungarus candidus. Malayan Blue Krait, Malayan Krait. Highly toxic and potentially deadly venom. White/black. Scroll down for 1 more photo.

Note: About 50% of all bites from this krait results in human death – even with the administration of anti-venin (antivenom). Death is the usual result if no treatment is given. The closely related Bungarus multicinctus is ranked 3rd in the world for toxicity of venom (terrestrial snakes). Do be careful.

Bungarus candidus (Malayan Krait or Blue Krait)

Thais say: Ngoo tap saming kla, or ngoo kan plong

Length: Max length about 1.6 meters in Thailand.

Range: All over Thailand and much of southeast Asia.

Notes: I’ve seen these dead on the side of the road near rubber plantations. Their head is not nearly as large as the yellow / black banded krait. The body doesn’t have the high vertebral ridge like Bungarus fasciatus. Be careful around these snakes.

Habitat: These snakes appear to favor flat country. Not found higher than 1,200 m vertically often. Prefer proximity to water. Likes rice fields and rice dams. Invades rat holes and use as a nest.

Active Time? The snake is mainly active at night and is not fond of the sunshine. They are shy and attempt to cover their head with their tail. They are active most consistently between 9 p.m. and 11 p.m. At least that is when I tend to find them.

Food: Other snakes – primarily, but also lizards, mice, frogs and other small animals.

Defensive Behavior: Not usually very aggressive. Shy. They don’t tend to bite unless really provoked. Still, you should never hold one. I have only seen one in a dozen of these snakes attempt to bite, and it was the result of being grabbed with tongs near the head.

Venom Toxicity: Very toxic – even more so than the Naja kaouthia (cobras). Bungarus krait venom is neurotoxic and attacks the human nervous system, shutting it down. Coma, brain death, and suffocation due to paralysis of the muscles necessary for crucial functions like the diaphragm, and or heart, are frequent causes of death. Death results usually 12-24 hours after a bite that is not treated. Little or no pain is usually felt at the bite location. The black/white kraits in Thailand are more toxic to humans than are the yellow / black kraits. That said, the yellow-black kraits (Bungarus fasciatus) can still kill you easily.

Here’s a short overview of what happened to one victim of a bite by Bungarus candidus (black-white striped krait):

A patient bitten by Bungarus candidus (Malayan krait) developed nausea, vomiting, weakness, and myalgia 30 minutes after being bitten. One hour later, ptosis and occulomotor palsies as well as tightness of his chest were noted. Respiratory failure requiring mechanical respiration appeared 8 hours after the bite and lasted for nearly 96 hours. The two bite sites were virtually painless and resulted in slight transient erythema and edema. No specific antivenin was available, and treatment consisted of respiratory support and management of aspiration pneumonitis. Recovery was complete. (Department of Medicine, Chulalongkorn University Hospital and the Queen Saovabha Memorial Institute of the Thai Red Cross Society, Bangkok, Thailand)

Handling: The banded and Malayan blue kraits are not known to bite during the daytime. That doesn’t mean they don’t, it just means they don’t do it commonly. At night these snakes bite rather easily, as evidenced by the numerous bites that occur at night to people usually laying down to sleep on the floor. Handholding the kraits for any reason seems rather absurd to me, yet snake-handlers across the globe do it regularly. The krait venom is so toxic, it’s just not worth the risk – however small.

Anti-venin / Antivenom: There is a specific krait antivenin that is given for krait bites. If you don’t have access to that antivenin you can ask the hospital if they have Tiger Snake antivenin – which can be used as a substitute for krait antivenin and works well.

Offspring: Lays 4-10 eggs. Juveniles are 30 cm long at birth. Hatching occurs in June-July in Thailand.

Classification:

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Bungarus
Species: candidus

(Classified as Bungaris candidus)

Exceptionally venomous neurotoxic venomous snake in Thailand.
Notice the thickness of the bands on this deadly Krait… Wolf snakes have similar coloring and style of bands, but the bands are much thinner. Wolf Snakes are harmless.

Malayan Krait – Blue Krait – Venomous – Deadly

The Malayan Krait, also called Blue Krait, is a deadly Thailand snake with highly toxic venom.
Malayan Krait – or, Blue Krait – Venomous – Deadly

One of the top 10 most toxic terrestrial venomous snakes in the world resides in Thailand, and it is second behind the Bungarus multicinctus in strength of venom, according to LD50 charts for subcutaneous venom injection (in mice), is the Malayan Krait, also called the Blue Krait (Bungarus candidus).

I’ve been looking for one of these snakes in the wild for a couple of years. I don’t herp at night all that much so it was really unlikely that I saw one for a bit of time – but I was due to see this one.

Update 2015 – I’ve seen around one dozen of these snakes. They seem to be active most from 9 p.m. to 11 p.m. cruising the ground along sidewalks or rocks. They are not big biters, and I’ve only seen one bite the tongs as I picked it up. These are relatively common snakes in Krabi province.

Here’s the story I put on Youtube about how it came to be that I caught this beautiful krait…

****
This is the mack daddy of all snakes in Thailand, for me. I’ve seen king cobras in the wild. I’ve caught monocled cobras and maybe 30 other kinds of snake. Last night I hit the jackpot by catching the lovely Malayan Krait – the black / white banded snake you see in the video.

I was herping with a guy from the UK, Michael. He found a red-necked keelback about 30 minutes before. We were herping HARD all over this great wildlife area and I was fully prepared to find nothing more. It was hard herping.

I stopped on the sidewalk for a second and was shining my flashlight (9pm) on the greenery just below the sidewalk (and next to it).

I couldn’t mistake the black/white pattern as the blue krait moved just inches from Michael’s feet.

I said loudly – KRAIT KRAIT! Move back, move over here!

My first instinct, before I opened my mouth was to grab that sucker with the tongs and bag him.

As I moved to do that I realized Michael might get a good bite!

It was funny to see in hindsight how my mind worked. I’m glad I thought of him – right? You know how you get so excited you just act? That’s jsut about where I was. I’d looked for years and years for one of these kraits. Finally there it was – 1 foot from me, and I had all the equipment I needed to catch it if I was fast enough…

Anyway – after he moved a safe bit away I gave the initial squeeze with the tongs and pulled it up where we could see it. It was a beauty. I held it for a while as Michael searched through my backback for the snake bag. The krait got loose because I didn’t want to squeeze too hard… I found the bag – and re-found the krait who was already half under a large rock that I couldn’t have moved if I wanted to.

I slowly pulled it out with the tongs and we bagged it.

Today we took this video in the morning.

She was calm… slow for a bit, then woke RIGHT up. You don’t want to miss this video if you handle or plan on handling kraits. They do have the potential to move VERY fast in whatever direction they choose. I was shocked (horrified!) that it came right at me in an instant.

I never felt as alive as in those few seconds, I can tell you truthfully.
Though we tailed it – and were able to handle the krait a little bit – I never felt comfortable with it – and would never hold one, day or night. Least of all night-time.

So – that’s the story.

More info on Bungarus candidus here.

Come to Thailand and herp – and see what we can find!
******

The video is below. You don’t want to miss the video because just after I say something like, “This snake kills a few people a year in Thailand” the krait comes at me totally unexpectedly and I freak out trying to move my feet out of the way and get back. Just by pure luck I filmed it coming at me.

That was one of the scariest moments of my life – and yet my body still reacted to get out of the way. It was totally unexpected – and yet I was able to move fast enough. I don’t know whether it would have bitten me, but I don’t see why not. We had aggravated it for a good 20 minutes and it was probably getting angrier as time went on.

If you work with kraits – don’t be lulled into the false sense of control that you don’t have. The krait can, at any time, turn one of your best days into the worst day of your life. There are rumors that if this krait or the many-banded krait (Bungarus multicinctus) bit you, and you went to the hospital – 50% chance you will STILL die from the venom.  Not sure if that’s true – but, still – it’s damn strong, and nothing to mess with.

Please don’t hand-hold the kraits – ever.

Check out my youtube video page at

http://www.youtube.com/user/thailandsnakes

More info on Bungarus candidus here.

Cheers!

*********

My “Thailand Snakes” Video Channel : Malayan Krait at Youtube:

Juvenile Blue (Malayan) Krait:

Another Adult Malayan Krait in Southern Thailand:

Banded Krait – Venomous – Deadly

These are yellow and black kraits. There are also Blue Kraits which are black and white. And the red headed krait which looks nothing like either of them.

Banded Krait Snake at Bangkok, Thailand Snake Farm
Yellow Banded Krait. Highly venomous, deadly, and relatively common in Thailand. There is a white and black version also called the Blue Krait. See page on right side. This photo is of a man at the Red Cross Snake Farm in Bangkok.

Bungarus Fasciatus (Banded Krait)

Thais say: (ngoo sam lee-um, or ngoo kan plong) This is a bit confused in Thailand where, in southern Thailand any viper is known as Ngoo sam lee-um. Lee-um means triangle, and so some people confuse triangle shaped heads of the vipers with triangle cross-section of the kraits.

Length: average 1.5m up to 2m (about 6.5 feet) In Thailand they don’t usually reach a full 2m.

Range: All over Thailand and most of Asia

Notes: I have yet to see a live banded krait in the wild, except a few dead on the roads – but I don’t go digging up ratholes or termite mounds. I may start if I don’t find one soon. I’ve been looking for three years to find a krait with yellow and black bands like these. At dinner last night I was looking around a small restaurant with many ponds, for snakes. I asked the owner’s son if they had seen any. He said, Ngoo Sam lee-um. SCORE. That’s the one! I’ll get their permission for some late night herping and try to bag one. I’m sure they’ll appreciate it. This restaurant is located on a small hill close to sea-level in southern Thailand. There are many frogs at the ponds, and probably many snakes too.

Update 2015- I’ve been to that restaurant numerous times and not had a call from them about this krait. I am not sure they have been found in Krabi. I have found them on the road in Surat Thani, just north.

Habitat: The snake lives on the ground and in rat holes and termite mounds, under stumps or rocks and in other cool, damp places. Recently I saw photos of one in some limestone rocks here in Thailand. I’ve seen large 2 meter dead banded krait just on the outside of a rubber plantation in Surat. They prefer wide open areas. They have been found as high as 1,524 meters in Malaysia and about 2,300 meters in Thailand.

Active Time? The snake is mostly nocturnal and is quite active at night. Most bites occur at night, as the kraits move close to people sleeping – usually on the floor, and probably the person moves and the krait bites. More dangerous at night, during the day they are not biters. These kraits are common in the northeast Thailand provinces. Recently a six year old boy was bitten and could not be revived. The snake had come up into their home in Surin to escape some flooding.

Food: Other snakes almost exclusively – rat and cat (Boiga) snakes. One noted herpetologist states that kraits don’t like to eat water snakes. Will also eat rats, mice, frogs, lizards if snakes cannot be found.

Defensive Behavior: The banded krait is slow acting during the day, lethargic, and usually not interested in striking. However, it can protect itself quite well – it is a strong biter and has been recorded as killing a large type of cattle 60 minutes after a bite.

Venom Toxicity: Very toxic. Deadly. This yellow/black banded krait from Thailand is less toxic to humans than monocled cobra venom is, but still QUITE deadly. These snakes rarely bite during the day, but if they do, they can transfer enough venom to kill you. Literature shows someone dying in 30 minutes, another dying in 15 hours. A famous American herpetologist, Joe Slowinski, was killed by a baby krait (Bungarus multicinctus) in Burma while on a remote expedition. They can be quite deadly. The cause of death is that your muscles are paralyzed and your diaphragm can’t work any longer to pull oxygen into your lungs. Kraits are very deadly in this regard. However, if you are able to get to a hospital with a ventilator you will likely be OK. There is no specific antivenin for snake bites from this snake, but polyvalent venom is used – which can also treat bites from Naja kaouthia and Ophiophagus hannah.

Interesting to note… when fed on a live garter snake the krait venom acts instantly to cause death. Apparently krait venom is very efficient with snakes – the krait’s primary diet.

Handling: The banded and Malayan blue kraits are not known to bite during the daytime. However, at night time they bite rather easily, as evidenced by the numerous krait bites that occur at night to people usually laying down to sleep on the floor. I would never handhold kraits like the man is doing in the photo above. The krait venom is so toxic, it’s just not worth the risk – however small.

Anti-venin:  Polyvalent. It is advised by experts to get antivenin in your blood stream for krait bites before you have symptoms because, once symptoms develop you may have lost nerve functioning that will not return.

Offspring: Mating in March-April and 4-14 eggs laid about 60 days afterward. The mother krait remains with the eggs for another 60 days before they hatch. Baby kraits are about 30cm long at birth, and have venom. I couldn’t find in the literature whether the mother left the eggs as they started hatching – so she didn’t eat them herself or not. The King Cobra does this instinctively because it also eats other snakes.

Banded Krait’s Scientific classification

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Bungarus
Species: B. fasciatus

Binomial name
Bungarus fasciatus
Classified by Schneider in year 1801

Photo of 2 Adult Banded Kraits:

2 Banded Kraits - Bungarus fasciatus from southern Thailand, Nakhon si Thammarat province.
Quite deadly, but shy snakes – see the video below.

Video of me with 3 Banded Kraits from Nakhon Si Thammarat, southern Thailand:

Malayan Pit Viper – Venomous – Very Dangerous

Malayan Pit Viper from southern Thailand
Calloselasma rhodostoma. Malayan Pit Viper. Usually under a meter, and thick. Very common. Very dangerous.

Calloselasma rhodostoma (Malayan Pit Viper, Malaysian Pit Viper)

Thais say: Ngoo gap pa

Length: Usually less than 1 meter. Female Malayan Pit Vipers are the larger and fatter snakes. Males of the species don’t make it to 1 meter long.

Range: Thailand, Laos, Cambodia, Java, Sumatra, Malaysia, Vietnam, Burma, and China.

Notes: These vipers are similar to North American “copperhead” snakes. They prefer dry, flat areas. They are known as lazy snakes. They may not move out of the way at all if someone is walking right toward them. After they bite they are known to remain in the same location. There are thousands of bites per year in Malaysia and Thailand from this snake.

These snakes are so dangerous when handled because they are not consistent with their behavior. One day they will be calm. The next, or the next 10 minutes – they will violently strike out lightening fast. Their preferred habitat is under dry leaves, wood, or rocks. They are active during the night mostly, especially during rain.

Nickname: Finger rotters – given by Al Coritz, Viperkeeper on YouTube. If they get you in the finger – you’ll likely lose part of your finger, hand, or arm without immediate care.

Habitat: Forests, rubber plantations, bamboo patches, farmland, grassland. Often lies in the short or long grass. These are terrestrial snakes that I’ve never seen climb anything.

Active Time? Day if cloudy and/or rainy, and night.

Food: Mice, frogs, lizards. Predominantly rodents.

Defensive Behavior: Partially coiled with neck in an “S”. Their strike is very fast. Their fangs are long – and in the front of the mouth. Some strikes are short, others involve the whole body as it “jumps” at the same time it strikes. Don’t underestimate the distance this snake can reach when striking. Also, this snake is VERY good at striking behind its head. Watch the video.

Venom Toxicity: Very toxic. Venom is cytotoxic – it destroys all cells it comes in contact with – red blood cells, muscle, ligaments, and bone. With a quick hospital visit after a bite you may just lose part of your finger, or some tissue where the bite occurred. Most people don’t die if they go to the hospital. Deaths occur when bite victims delay seeking medical treatment. There is antivenom for this snake.

If you are bitten by this snake, do NOT wrap a tight band around the bite location. That will stop the venom from moving, from being diluted, and the tissue will suffer much more destruction.

Offspring: Lay eggs. Female guards them. Young are about 9 inches long and fast and thin. They are fully able to bite, and have full strength venom.

Malayan Pit Viper Eating Mouse Video – close up of large fangs, strike, etc.

Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Crotilinae
Genus: Calloselasma
Species:
C. rhodostoma

Binomial Classification:
Calloselasma rhodostoma

Malayan Pit Viper video:

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Red Headed Krait – Bungarus flaviceps – Deadly

Deadly and Beautiful, the red-headed krait is one of the rare and very venomous elapids living in Thailand's rainforests. This is a closeup photo at 3 a.m. as we found one in Trang, Thailand.
Deadly and Beautiful, the red-headed krait is one of the rare and very venomous elapids living in Thailand’s rainforests.

Red Headed Krait (Bungarus flaviceps)

Thais say: Ngoo sam lee-um hoo-uh si dang

Length: These kraits grow to 1.9 to just over 2 meters, though most found are under 2 meters.

Range: In Thailand the red headed krait is only found in the southern Thailand provinces from Ratchaburi and southward. Across the globe they are most heavily concentrated in Malaysia, Borneo, and a couple other places. Recently I found a large 1.9 meter specimen in rainforest in the Trang province. I have also found them in Surat Thani, and Krabi provinces.

Habitat: Lowlands and hilly rain forest type habitat. The last four of these snakes I saw were all found at less than 200 meters elevation.

Active Time? Probably active both at night and day. Three of four of these snakes in our local area were found during the daylight. Probably they prefer the night time hours for hunting prey.

Food: Some say the red headed kraits eat more frogs, lizards, eggs, and rodents than other snakes. Probably they are opportunistic and eat whatever presents itself.

Defensive Behavior: Of the four snakes examined – none struck out, none attempted to bite at all. Note – all but one was handled during daylight hours.

Venom Toxicity: Venomous, and deadly. The venom has been shown to have an LD50 subcutaneous measurement of .35 mg/kg for Bungarus flaviceps, while Bungarus candidus (Malayan Krait) was .32 mg/kg, and Bungarus fasciatus (Banded Krait), .62 mg/kg and less than that in another study. This makes it one of the top venomous snakes on the planet and within the top three most venomous in Thailand. The black mamba is listed at the same .32 mg/kg by venom researcher, Dr. Bryan Grieg Fry at his site. (was, he pulled down his chart). Only 10 other terrestrial snakes in the world were listed with more potent venom. Little is known of the this venom’s effect on humans after a bite, though it is likely very similar to a bite from Bungarus candidus, I could find no treatment studies due to bites being quite rare by this krait species.

From the abstract of a recent (2/2010) venom study in Malaysia: Bungarus flaviceps (red-headed krait) venom presents an intravenous LD50 of 0.32 μg/g and exhibits enzymatic activities similar to other Bungarus toxins. ELISA cross-reactions between anti-Bungarus flaviceps and a variety of elapid and viperid venoms were observed in the current study. Double-sandwich ELISA was highly specific, since anti-B. flaviceps serum did not cross-react with any tested venom, indicating that this assay can be used for species diagnosis in B. flaviceps bites. In the indirect ELISA, anti-B. flaviceps serum cross-reacted moderately with three different Bungarus venoms (9-18%) and Notechis scutatus venom, but minimally with other elapid and viperid toxins. The results indicated that B. flaviceps venom shares common epitopes with other Bungarus species as well as with N. scutatus. The lethality of the B. flaviceps venom was neutralized effectively by antiserum prepared against B. candidus and B. flaviceps toxins and a commercial bivalent elapid antivenom prepared against B. multicinctus and Naja naja atra venoms, but was not neutralized by commercial antivenoms prepared against Thai cobra, king cobra and banded krait. These data also suggested that the major lethal toxins of B. flaviceps venom are similar to those found in B. multicinctus and B. candidus venoms.

Offspring: Two clutches from two adult female red-headed kraits were studied by Chula University scientists in Bangkok. One clutch was four eggs, and the other, six eggs. After 81-84 days in incubation at 26-27C and the other clutch at 30-32C eggs hatched. Less eggs hatched at the higher temperature incubation. Average hatchling length was 28.9cm +/- .8cm measured from snout to vent. Weight of each was 7.2 to 7.8 grams. Humidity in the incubation enclosures was 60-70%. After 7-10 days all snakes had shed.

Notes: I have seen four of these kraits, and they are quite incredible to find in the wild considering how rare they are. The Bungarus flaviceps has not been studied very well, and I suspect that most of the information on Wikipedia and other information sources has been generalized from other Thailand kraits like the Blue Krait (Bungarus candidus) and Many Banded Krait (Bungarus multicinctus) because the wording seems too similar to be by chance.

These snakes have not been studied well in captivity or in the wild, except for the previously mentioned study in which the kraits lived surprisingly long. Usually the red-headed krait dies quickly in captivity. These kraits are not known to bite during daytime, but, be exceptionally careful when handling them.

The venter (belly) at the tail is red, red-orange on this snake. The rest of the venter is creme colored.

Substrate: Best? Leaves and something large to hide under – wood is best, rocks, something solid.

Ways to differentiate Bungarus flaviceps from the Malayan Blue Coral Snake (Calliophis bivirgatus):

1. B. flaviceps has a triangle cross-section, while C. bivirgatus has more of a round cross-section.
2. C. bivirgatus has a venter that is all red/orange. B. flaviceps has red under the tail only.
3. B. flaviceps reaches about 2 meters while B. bivirgatus grows to just 1.4 meters.
4. B. bivirgatus has lateral lines on both sides of the body toward the venter, that are solid light blue or white.
5. With some video study you can see how their crawling pattern differs.
6. B. flaviceps has a more sizable head, a wider head, and larger mouth than the coral snake.

7/25/13 Update. At 11:30pm in a Thailand National Park in Trang Province, a friend and I found a large 1.9 meter long Bungarus flaviceps on the trail and photographed and shot video of it. Video #1 is of this snake. The photos on this page are all of the same snake.

Bungarus flaviceps

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Bungarus
Species: Bungarus flaviceps

Binomial name: Bungarus flaviceps

Classified by Reinhardt, in year, 1843

Photos of Bungarus flaviceps:

Tailing the red-headed krait, Trang Province, Thailand.
Tailing the red-headed krait around 2 a.m. in the middle of the rainforest, Trang Province, Thailand.
Red-headed krait peaking underneath the tail.
After a krait stops trying to get away, you will be lucky to get a little peak before it covers its head.
The red tail is unmistakably krait. The high-vertebral ridge is one of the differentiators between this snake and the similar in color, Blue Malayan Coral Snake.
The tail is unmistakably krait. The high-vertebral ridge is one of the differentiators between this snake and the similar in color, Blue Malayan Coral Snake.

Video 1 – Large Red-Headed Krait caught in Trang Province, southern Thailand:

Video 2 – Red Headed Krait – Bungarus flaviceps caught in southern Thailand:

2nd Part of Red Headed Krait #2 Video:

Red Necked Keelback – Venomous – Dangerous

Red Necked Keelback Snake, venomous, Thailand and southeast Asia.
A beautiful snake, usually under 1 meter, not very aggressive.

Rhabdophis subminiatus (Red-Necked Keelback Snake)

Thai: (ngoo lay sab ko dang)

Length: Up to 130 cm (1.3 meters). Usually smaller than 1 meter.

Range: Thailand and southeast Asia.

Notes: These snakes are commonly found near water, lakes, ponds, and in gardens. Recently a friend had one in his swimming pool in Krabi town, southern Thailand.

Active Time? Daylight hours. I’ve found them sleeping around 1 foot off the ground in bushes.

Food: Frogs, toads, and fish primarily

Defensive Behavior: Spread out their neck slightly to make themselves appear bigger. Not as dramatic as a cobra. Lift their head and neck off the ground 4-5 inches.

Venom Toxicity: LD50 is 1.29 mg/kg for intravenous injection (source). That is about the same rating as the very deadly “Banded Krait (Bungarus fasciatus)”. It was previously thought these snakes were harmless. Some kept them as pets and were bitten. In one case the snake was left to bite for two entire minutes before removing it from a finger. Serious complications resulted requiring hospitalization and intensive care. Click for article. These snakes are rear-fanged and need to bite and hold on, or, repeatedly bite to have any effect on humans. Once they do either – there is the possibility of severe problems including renal failure and death. Recently a small boy of 12 years old was bitten by one he was keeping as a pet in Phuket, Thailand and he is currently being treated (11/5/10). Be very careful not be be bitten by these snakes. There is NO ANTI-VENIN available yet for these snakes.

Another study in Japan ranked the venom as having an LD50 of 1.25 mg/kg for intravenous injection. (Japan Snake Institute, Hon-machi, Yabuzuka, Nitta-gun, Gunma-ken, Japan) V.1- 1969- Volume(issue)

Update: The 12 year old boy bitten by the Rhabdophis subminiatus was treated for 2 weeks of intensive care, and released. He was bitten multiple times, the 2nd bite lasting over 20 seconds.

Offspring: I have a juvenile red-necked keelback I’ve taken photos and videos of and will release in the wild tomorrow morning. I cannot find anything much about offspring.

Notes: These snakes can inflict a deadly bite when they are allowed to bite for longer than a couple of seconds. I know personally of two instances where a child was bitten for well over 20 seconds, and a man was bitten for about a minute. Neither wanted to hurt the snake to remove it forcibly, and both spent over a week in intensive care, with the possibility of renal failure and death. Do not play with these snakes. If you have one, do not free-handle it. Treat it like you would a pit viper or a cobra. The LD50 on this snake for intravenous was stated to be 1.29 mg/kg. That is VERY venomous.

As a precaution, any snake in the Rhabdophis genus should be treated with extreme caution.

Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Rhabdophis
Species: Rhabdophis subminiatus

Red Necked Keelback video

Red Neck Keelback Snake video – This is another red-necked keelback (adult) that I had for a while. I’ve since let it go back into the wild.

 

Brown-Spotted Green Pit Viper – Venomous – Mildly Dangerous

Brown Spotted Green Viper in southern Thailand. Cryptelytrops venustus.
Cryptelytrops venustus. Brown-Spotted Green Viper. Small – 70 cm. Venomous. Mildly Dangerous. Found in southern Thailand.

Cryptelytrops venustus previously Trimeresurus venustus(Brown-spotted Green Pit Viper, Beautiful Pit Viper)

Length: average 40-70 cm

Range: Chumpon to Krabi Province in Thailand. I have found them in Krabi and Surat Thani provinces.

Notes: I found this one in the picture on a small hill at a Buddhist temple on a hill next to some steps. These venomous snakes are active on the ground and in bushes. This one was in a bush about 1.3 meters high, right next to the path. It was non-aggressive and didn’t protest when I moved it away from the path with my long stick.

Habitat: The snake lives almost only on the ground where it hunts frogs and lizards. They also enjoy jungle, limestone mountains, and rubber plantations. I kept one of these for three days to photograph and shoot video of. It spends most time suspended from a branch just a few inches off the bottom of the tank.

Active Time? The snake is mainly nocturnal. Active during the day only after heavy rainfall. I have found all of mine during daylight hours.

Food: Mice, frogs, lizards. Predominantly mice. I have a good sized house gecko in the tank with this Cryptelytrops venustus, but so far she has shown no interest in it. I’ll go get some small mice here shortly. The pit vipers sense the heat of the animal and strike. The geckos are cold blooded so they are no hotter than their surroundings.

Defensive Behavior: The snake is very slow during the day and only bites if seriously aggravated. I ran into a reptile poacher in a Thailand forest and he was hand carrying one of these brown spotted green pit vipers in his left hand and had a large box turtle in his other hand. I told him – PIT! It means ‘venomous’ in Thai. He insisted “no, it wasn’t” and held it up to his face where the snake immediately bit him on the cheek a couple times and once on the lip. It let go after 1-2 seconds. He said – See?? I promptly bought the snake from him, to keep him from further harm. Not sure what hospital he was at that night!

Venom Toxicity: Mildly toxic. Bites are painful usually without significant effects. Probably this viper would need to bite down for a number of seconds to transfer enough volume of venom that it would be seriously detrimental. Bites are to be considered potentially deadly. Green Pit Viper Antivenin is available and manufactured by the Queen Saovabha Memorial Institute in Bangkok, Thailand.

Offspring: The beautiful pit viper I have now is likely gravid, which contradicts some other info I’ve seen about them having offspring in the June/July time-frame. This is December. She is not overly gravid and looks to be in the beginning stages, but still – I think only a couple of months are required for gestation… she’ll have an early birth – April maybe? These snakes birth live offspring in a jelly-like bubble that breaks after coming out of the female snake. Typical numbers are 20-30 young that are colored and patterned same as the adults.

Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Crotilinae
Species: Cryptelytrops venustus

I could find little information about this snake beyond my own experience. Joachim Bullian at siam-info.de had some useful information which I’ve added to this article. As I said, I currently have one of these lovely snakes for a couple of days and will be adding info here to this fact sheet as I do updates.

Golden Tree Snake – Mildly Venomous – Not Very Dangerous

Golden Tree Snake - Chrysopelea ornata ornatissima - Southern Thailand
Golden Tree Snake – Venomous – Little Danger to Humans

These Golden Tree Snakes are also known as Flying Snakes. They glide very well, perhaps the best of any snake in the world, and even better than some squirrels and lizards. Golden Tree Snakes are a lime green and black checkered type patterned snake. They are tree dwellers but can climb anything, even walls. They appear to have a favorite food – the Tokay Geckos that reach sizes of 12 inches long in adulthood. They are frequently seen eating Tokays.

Chrysopelea ornata ornatissima (Golden Tree Snake)

Thai language: Ngoo kee-ow ly dok mak

Appearance: Chrysopelea ornata in Thailand is lime green with some black and green cross hatches. This snake’s head is rather flat with a thin neck and atypical blunt nose, large eyes which sometimes are red depending on the angle.

Length: Up to 140 cm (almost 5 feet). They only get about as thick as 2-3 fingers held together.

Range: All over Thailand and many countries in Southeast Asia.

Habitat: Golden Tree Snakes can be found just about anywhere – in an apartment in Bangkok, or climbing bushes at 500 meters vertical elevation. Typically I see them at sea-level crossing the roads, or laying flat out along the stem of a low-lying palm tree branch.

Notes: If you’re trying to catch one of these snakes it can be very difficult. They are excellent escape artists and once they get into a clump of bushes or up a tree – forget it. Go look for something else, you won’t catch it. They can disappear in trees so fast it’s hard to believe.Occasionally you can find these in caves – they eat bats too.

Active Time? Diurnal – daytime.

Food: Small geckos, lizards, large Tokay geckos, rodents, bird eggs, insects, another snake occasionally, and bats. Golden Tree Snakes kill by squeezing the neck of their prey, crushing it.

Natural Enemies: King cobras and Kraits will eat these snakes when they can catch them. When they are small, birds eat them.

Defensive Behavior: Golden Tree Snakes (flying snakes) bite quickly when played with. As adults they may not lose that temperament. As babies – I have one now for some photos and video, they lose it quickly – and are OK with being held. They are very fast snakes when escaping.

Venom Toxicity: Rear fanged mildly venomous snake – but the venom is not known to be dangerous to humans. Just the same, don’t let it bite down on you more than a second or two before you remove it. Don’t give this snake a chance to inject a lot of venom and you’ll likely be just fine if no allergies to it. There have been no confirmed cases of medically significant envenomation with Golden Tree Snakes.

Offspring: Little is known about the breeding habits of these snakes because nobody can seem to get them to mate while captive. Being oviparous it lays 6-12 eggs in May-June and they hatch in June. Baby snakes are 11-15cm long (4-6″)

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Subfamily: Colubrinae
Genus: Chrysopelea
Species: C. ornata
Binomial name: Chrysopelea ornata

Discovered, classified by Shaw, 1802

Golden Tree Snake Photo:

In Thailand the golden tree snakes typically have this coloration and pattern.
In Thailand the golden tree snakes typically have this coloration and pattern.

Video: My Baby Golden Tree Snake in Thailand:

King Cobra – Largest Venomous Snake in World

Large Thailand King Cobra head
Ophiophagus hannah. Venomous and potentially deadly. Grows almost to 6 meters. Eats other snakes primarily. If bitten, may die within 10-20 minutes.

Ophiophagus hannah
(Thailand King Cobra)

Thais say: Thai language sounds like Ngoo how chang, or ngoo chong ahng. There are many names for this snake.

Length: Max length about 5.8 meters. The presenter at the Saovabha Snake Farm in Bangkok said the largest king was caught in Nakhon si Thammarat in Thailand’s south, near Surat Thani province.

Range: All over Thailand and most of Southeast Asia.

Notes: I’ve seen a few king cobras in the wild. One I saw in a park in Krabi – just the tail as it crossed the road behind me. I’m guessing it was a 8 meter King. I know it is probably impossible, but I’m not joking. The tail was absolutely massive, long and thicker by nearly double that of other 5-meter kings I’ve seen many of. This was quite possibly the biggest King Cobra in the world.

Another king I saw on the island of Penang, in Malaysia. I was coming  down a very steep hill and I saw this 3-4 meter king cruising through the dense underbrush. It was absolutely awesome to see it there when there were so many people climbing the hill (dozens).

Another time I saw a king about 120 meters in elevation up a limestone mountain in Krabi province. This one rested on the steps of a popular temple – Wat Tham Seua and I had to move it away so people could come down the steps. A large 4 meter king that was very fast! Note to self – don’t try to move a king that is higher than you are (it was on steps up ahead of me and was very fast to come down to attempt to strike at me because it had the height advantage and probably felt fearless.

Kings are all over Thailand and can be found anywhere near houses, or really – anywhere. But they are not found often. They are tremendously strong and smart animals. Please give the snake a large space and do not poke it with a stick. They are very fast moving. Juvenile king cobras can also kill you. Their venom is every bit as toxic as adults.

Habitat: Like many types of habitat. Dense forest near water and open grasslands.  Love bamboo thickets for a nest. Ideal cover is a web of small bamboo growing about a meter high with soft bamboo leaves underneath. The King I found last night was up a limestone mountain around 100 meters elevation. In Thailand they are often found wherever rat snakes might be found because they seem to prefer them.

Kings seem to prefer mountains. The other two I found were also at some elevation (200 m and around 500 meters).

King cobras are usually terrestrial, but have been found many times in trees.

Active Time? The snake is mainly diurnal – found active during the daytime, but can also be active also at night.

Food: King cobras eat other smaller snakes primarily, but also will eat monitor lizards. Occasionally they’ll eat other king cobras, pythons, lizards, birds, rodents. I saw a 5 meter long king attempting to eat a 2.5 meter reticulated python. The King appeared intimidated by the strength of the python – it’s no pushover. Here is a photo of a 3 meter king eating a 2 meter red tailed racer snake.

King Cobra Eats Red Tailed Racer Snake - Thailand

Defensive Behavior: Lifts its head off the ground sometimes by as much as 4-5 feet, and flattens out the neck. The hood of a King cobra doesn’t flare as wide… but, a big King will scare you much more because they can be 5 times as long as the monocled or other cobras! These snakes are not usually that afraid of people, and move slowly to ‘escape’ if they move away at all. Last night I moved a 4 meter king off some steps at a local temple so people could pass. It was not in ANY hurry to get away, and it came at me a couple of times. Impressive snakes, and be very afraid… I know a man personally, his brother was bitten on the chest and died in less than 10 minutes on the way to hospital.

Venom Toxicity: Very toxic, but monocled cobras (Naja kaouthia) and kraits (genus Bungarus) are more potent on the LD50 scale. The power of the King is in the volume of venom it can inject in one bite – maximum around 7ml! Kings can kill elephants with a bite.

Antivenom: There is a specific antivenin for the king cobras, but if the hospital you are at does not have it there is an alternative. Tiger snake antivenin can also work well.

Offspring: Lay eggs which they stay with in the nest until ready to hatch. When the eggs start to hatch the mother leaves because it eats other snakes primarily – and would likely eat the young. The young are fast, and deadly from the time they hatch. Juvenile king cobras from Thailand have yellow bands across their black bodies and heads. They look radically different from adult king cobra snakes. There is a danger of mistaking them for mangrove cat snakes (Boiga melanota).

Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Ophiophagus
Species: O. hannah

Three King Cobras in Thailand
Notice the light band across the back of the mid-body (right) ? Until the King flares his hood you can tell it’s a king by those bands. In addition, the head is very distinctive, and large compared to any other snake except a Python.

The kings in these photos are all beat up from bashing their faces against the cages at a snake show in Thailand. In the wild they are so beautiful… majestic… amazing snakes. I was so glad to see my first one  in the wild last night. Even better to interact with it… Gotta love Thailand!

Video of a King Cobra breathing – you can hear it:

Update 3/13/2015 – I’ve seen a number of king cobras in the wild now over the years. Four of them have been hundreds of meters high on mountains. Many snake enthusiasts want to come to Thailand to see king cobras, and I have to tell them… the chance of seeing one is very little. I’ve lived in Thailand for ten years and I’ve seen only a handful, and I’m in the rainforest often. Your best bet is to come to the country and stay for a couple of months. Stay at PhanomBenchaMountainResort.com in a bungalow, and hike during the days around there. That’s my best advice.

Thais are a bit crazy about cobras – it is the most easily recognized snakes, and though I have met few people that can identify other snakes, most know what a cobra looks like. They even sell amulet necklaces of cobras!