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RE: Gloydius
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by Phobos on February 13, 2005
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Hi:
It's me again....lol
Look them up yourself here :
http://www.embl-heidelberg.de/~uetz/families/Viperidae.html
Cheers!!
Diamond Butt Al
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RE: Gloydius
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by Phobos on February 13, 2005
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Jeremy:
I find it hard to keep up with all the changes in "systematics" Check out Wolfgang Wusters website. He is the "Yoda" of systematics and I go to his website when I have a question like this.
http://biology.bangor.ac.uk/~bss166/
Diamond Butt Al
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RE: Gloydius
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by Snake17 on February 14, 2005
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Hi Jeremmy, it`s Gloydius. It was Agkistrodon a long time ago. Gloydius halis is the only european pitviper.
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There are no European pitvipers
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by Snakeman1982 on February 15, 2005
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Gloydius halys doesn't get into Europe. It may get slightly west of the Caspian sea but not much further if any at all. It barely crosses the Volga river.
For some good literature on Gloydius and other 'old' Agkistrodon species get Gloyd and Conant's "Snakes of the Agkistrodon Complex". It is old (1990) and not taxonomically up-to-date but it is really good and surely the authority on the group. There is also a new book by Gumprecht, et. al. called "Asian Pitvipers". An excellent book with a lot of photos of each species/subspecies but no distribution maps or natural history info. Plus the Gumprecht book is hard to find and expensive. Not the "Snakes of the Agkistrodon Complex" is cheap and easy but both are worth it.
But most of your taxonomic data can be found at Wuster's site or from some of his links, like the reptile data base.
All the Asian species of 'Agkistrodon' have been changed to other genera. They were placed in the same genus due to similar characteristics (i.e. head plates and body shape) but are no longer considered to be as closely related as previously thought. The head plates don't mean as much on an evolutionary scale as once was thought (i.e. the recent Crotalus [Sistrurus] ravus name change).
Taxonomic changes happen quite often. Don't forget, Linnaeus originally had 'Agkistrodon contortrix' in the genus Boa, lol.
Robert
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Correction!!!
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by Snakeman1982 on February 15, 2005
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I guess Gloydius halys does get into Europe. I guess the Volga river is further west than I was thinking. I just looked it up. My fault.
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by Snakeman1982 on February 15, 2005
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So it only barely gets into Europe (by 50 miles or so). Glad I know that now as I have never read anything that said it. It isn't even listed in my European herp field guide.
Robert
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