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"Big" Dwarf salamander (Eurycea quadridigitata complex)

This is a discussion on "Big" Dwarf salamander (Eurycea quadridigitata complex) within the Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) forums, part of the Species, Genus & Family Discussions category; I had a chance to do some limited herping in Sam Houston National forest in SE TExas and found the ...

Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) The largest, and one of the most diverse groups of salamanders, these salamanders have all evolved to breathe solely through their skin and are found almost exclusively in North America.

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Old 1st June 2005   #1 (permalink)
nate
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I had a chance to do some limited herping in Sam Houston National forest in SE TExas and found the biggest Eurycea quadridigitata I've ever seen. The record length for this species is 9.0cm and I really thought this one was longer. Turns out it was right around 8.9cm Click the image to open in full size.

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Old 1st June 2005   #2 (permalink)
ralf
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Nice pics, Nate. However, for measurement you should use one of those compressible rulers. The kind that is made for anglers and hunters. Click the image to open in full size.

(Message edited by ralf on June 01, 2005)



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Old 1st June 2005   #3 (permalink)
john
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eh, call it 9.0 and be done with it.... there's a good 0.5mm in the very slightly kinked tail and abdomen

BTW, how do you get them to be still for measurements? Do you anesthetize or something?



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Old 1st June 2005   #4 (permalink)
nate
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Yep, I knocked her out with MS-222 anesthetic. It's the only way to be sure on these things.



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Old 2nd June 2005   #5 (permalink)
john
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Nate, i found Argent labs as a source of supply. They offer a 5g bottle for just under $20. Does that sound like a decent price? I'd really like to take more measurements and weighings of mine. Any pointers of safe usage?



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Old 2nd June 2005   #6 (permalink)
nate
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Yes, quite decent. I found the recommended dosages did not always knock out my subjects. You're going to have to experiment a bit. Generally, as soon as the animal stops moving, I remove them from the anesthetic. Despite anesthetizing hundreds of animals, I've never lost an animal and so this stuff is very forgiving.

You shouldn't need to anesthetize for weighings or most species lengths, I just did this in case it was a record-breaker.



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"big", (eurycea, complex), dwarf, quadridigitata, salamander


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