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Monocled Cobras – Venomous – Very Deadly

Monocled cobra siblings. Deadly venomous snakes - Naja kaouthia - Thailand

Naja Kaouthia - Venomous - VERY dangerous and very common Thailand snake.

Naja kaouthia, the monocled cobra is one of Thailand’s most deadly snakes – with highly toxic (neurotoxic + cytotoxic) venom. One bite on your toe from one that jumps out of your outdoor refrigerator can kill you. I just wrote a story about that on ThaiPulse.com/blog/. Monocled cobras seem to be everywhere in Thailand. I had a friend that found them in his kitchen often. I’ve seen them crossing the road (see video below), and there was a family of these cobras living under the office of my wife’s workplace – with many 18″ baby cobras.

Currently I have 2 baby monocled cobras and even at 12-15 inches – they are fierce. One snake handler described monocled cobras as “spastic” – and I have to agree.

If you are bit by any cobra – get to the hospital as fast as you can. Monocled cobra venom is more toxic than kraits, and much more toxic than the King Cobra venom. Even if the bite is a very small one – get to the hospital immediately. All it takes is a drop of venom to hit your blood stream for chaos to ensue.

Naja kaouthia
(Thailand Monocled Cobra)

Appearance: Monocled cobras are easily identified by looking at the back of the hood – there is a monocle – or – eye type shape there. They are light brown to dark grey. The two I have now, and the two I had before were almost black.

Thais say: Ngoo how hom, Ngoo how mo (long o sound)

Length: Typical maximum length about 1.5 meters. Recently I saw one in a mangrove forest that was 2 meters or larger. They can get up to 2.2 meters – about 7.5 feet long.

Range: All over Thailand and most of southeast Asia.

Notes: Neuro toxic venom affecting nerves, brain, and causing death very quickly without treatment. They are very fast strikers. The baby monocled cobras are every bit as deadly. Please be CAREFUL!

Habitat: Both flat and hilly regions. I’ve seen them on hills, but usually near people – under houses and in places rats and frogs are likely to be found. In the mornings they can be in trees and bushes – trying to get some sun to warm up. They love to hide under leaves, wood, anything really. Lifespan is around 30 years.

Deadly venomous Thailand monocled cobra (naja kaouthia) in strike pose.Active Time? The snake is mainly nocturnal – active at night, but I’ve seen plenty of monocled cobras active during the daytime. In fact, in Thailand – I’ve only seen one active at night – the rest – dozens, active during daytime.

Food: Rodents, lizards, frogs, birds, eggs, other snakes.

Defensive Behavior: Lift head off ground and flatten out neck. The hood flares quite wide compared to the width of the body – versus that of the king cobras that don’t flare out that widely.

Venom Toxicity: Very toxic, deadly. Even a small bite can kill you. See “neurotoxic and cytotoxic venoms” (link).

Offspring: Lays 25-40 eggs. Young are fully prepared to envenomate as they hatch. Mating takes place after the rainy season stops. Eggs incubate about 2 months. Eggs hatch between April-June. Hatchlings are between 8 and 12 inches at birth.

Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Naja
Species: Naja kaouthia

Classified by: Lesson, 1841

Monocled Cobra videos:
My 2 Recent Baby Monocled Cobras:

Finding a Small Monocled Cobra on the Street:

My 2 Previous Monocled Cobras in the Tank:

About Vern Lovic

All posts by Vern Lovic. Amateur herpetologist roaming about Thailand on field herping trips to find cobras, kraits, coral snakes, and other snakes native to Thailand. Thailand has over 200 snake species with many of them venomous.

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- who has written 182 posts on Thailand Snakes | Venomous | Photos | Videos | ID.

All posts by Vern Lovic. Amateur herpetologist roaming about Thailand on field herping trips to find cobras, kraits, coral snakes, and other snakes native to Thailand. Thailand has over 200 snake species with many of them venomous.

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9 Responses to “Monocled Cobras – Venomous – Very Deadly”

  1. david says:

    Hello,I’ve got a question.One day my girlfriend and I went to get a massage,while we was there we saw a snake next to the curb..I have been looking for this snake everywhere..i think it was a cobra,she being thai said it wasnt.So let me tell u about it..It was a silverish copper color with two black markings one each side,the marking was a little behind the eye.Could u help me identify what snake this was?

    Thanks

    • Vern says:

      Hi David,

      I wish I could tell you… there are many factors that come into play… Where in the country are you? Were you next to the ocean? How long was it? How thick? There are way over 100 different species of snake in TH – many of them silver/copperish. Many with markings behind the eye… Best to treat it like a cobra though!

  2. david says:

    The snake was about 20-22 inches long,not very wide..looked like a baby.i am in bangkok near khao san road

    • Vern says:

      I’m still clueless. Maybe a rat snake. Maybe a cobra. Maybe a kukri snake. Maybe a keelback. Maybe a snail eating snake. Maybe a water snake. Maybe none of those! Too hard to guess really!

  3. Adrian says:

    Im an snake expert from malaysia i have got 6 king cobra’s in my basement as pets! the generation today has an wrong understanding on snakes. but the truth is if you handle this snakes with care and respect the snakes will be your pet.otherwise they can be as deadly as a bullet it the brain.

  4. Frode Pedersen says:

    Yeah I want to join for herping ~ cheers

  5. Dipto says:

    I’m not among snake experts. But I think that might be Spectacled Cobra.

  6. Stan Di Cato says:

    I’m Stan, I’m an exotic non venomous snake and chelonian keeper. I’m very interested in the venom of the Cape Cobra Naja nivea and the Thai Monoculate or Monocled Cobra Naja kaouthia and would like to know more about these species of venomous snakes which I know are from Southeast Asia and India.

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Thailand has 200+ snake species with over 60 of them - venomous. I created this site as a way to educate Thais and visitors to Thailand about snakes. Many people kill the snakes they see in Thailand, while in many cases - they are non-venomous and completely harmless. With this site I hope to give people a better idea what is harmful and what isn't.

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