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Calliophis & Hypnale
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by Naya on August 25, 2003
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Are the Sri Lankan Coral snake ( Calliophis melanurus) and the Hump-nosed viper ( Hypnale hypnale)considered Highly venemous ( can cause death) or moderatly venemous ( Serious damage)??
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RE: Calliophis & Hypnale
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by Ferdelance_1 on August 26, 2003
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The (Sri Lankan Coral Snake) Calliophis melanurus actual toxicity is unknown, but potential lethal envenoming, though unlikely, cannot be excluded !
The (Hump-nosed PitViper) Hypnale hypnale, severe envenoming possible, potentially lethal!
Cheers,
Derek K.
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RE: Calliophis & Hypnale
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by BGF on August 28, 2003
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Have a read of our paper
http://www.kingsnake.com/toxinology/downloads/BGF_Colubroidea_RCMS.pdf
In in we reference a lethal Calliophis envenomation by a pretty small snake. Saw a real bad C. intestinalis in Singapore from a 20 cm snake, they can actually open their mouth pretty wide and feed on reptiles (so can easily go through our skin).
Cheers
Bryan
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RE: Calliophis & Hypnale
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by Ferdelance_1 on August 28, 2003
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Dr. BGF,
My mistake !
I will never write the words "toxicity unknown" again! Really didn't believe it when I wrote it, but the source seemed quite reputable,(won't mentioned a name).
I am not in the habit of putting out inaccurate info, nor would I appreciate anyone else doing so.
Excuse Please:
Cheers,
Derek K.
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RE: Calliophis & Hypnale
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by BGF on August 28, 2003
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Hey mate
You may very well have been correct that the toxicity of that particular species may be unknown (as is the case with many common Naja as well due to the bugger all research dollars govs are putting into venom research).
Calliophis as a whole has been the focus of very little research and is certainly a neglected area (it is unknown which if any of the existing antivenoms will work for example).
All the best
B
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RE: Calliophis & Hypnale
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by Ferdelance_1 on August 28, 2003
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Dr. BGF,
Since the pdf. file you mentioned was not found, which species of Calliophis was responsible for the fatal envenomation? If my memory serves me correctly: isn't a larger form (to 140cm ) of Calliophis, formerly Maticora bivirgata, (Blue Malaysian Coral Snake), had documented fatalities recorded? One other might be the much smaller Calliophis maculiceps, (Small-spotted Coral Snake)?
As you previously indicated: not much info out there with regard to these particular serpents.
Cheers,
Derek K.
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RE: Calliophis & Hypnale
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by Ferdelance_1 on August 28, 2003
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Dr. BGF,
Since the pdf. file you mentioned was not found, which species of Calliophis was responsible for the fatal envenomation? If my memory serves me correctly: isn't a larger form (to 140cm ) of Calliophis, formerly Maticora bivirgata, (Blue Malaysian Coral Snake), had documented fatalities recorded? One other might be the much smaller Calliophis maculiceps, (Small-spotted Coral Snake)?
As you previously indicated: not much info out there with regard to these particular serpents.
Cheers,
Derek K.
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RE: Calliophis & Hypnale
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by BGF on August 29, 2003
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Hi mate
The PDF is there, you just need to go to the adobe homepage and get the acrobat reader plugin so that you can read PDF files. Then you're set ;-)
Cheers
B
PS the snake was a small (20-30 cm) specimen of Sinomicrurus macclellandi (formerly Calliophis macclellandi).
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RE: Calliophis & Hypnale
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by Ferdelance_1 on August 29, 2003
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Thanks,Dr. BGF,
Hmmm,
This time a link became available to click on that linked me to the paper. Since I already had the latest Adobe Reader 6.0, there were not any further problems.
I read the entire paper and was quite impressed, except that I felt pretty uneducated not knowing what all those numbers were equivalent to (LOL).
Cheers,
Derek K.
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RE: Calliophis & Hypnale
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by BGF on August 29, 2003
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The numbers were simply the weight of the toxins. How much an individual molecule of that toxin would weigh in daltons (or atomic mass units). One amu or dalton is equal to the weight of one hydrogen. 6700 daltons is an average size for a cobra-style 3FTx (three-finger toxin).
That is all.
Cheers
B
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