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jobi Oct 03, 2006 01:33 AM

Thos of you working with acanthosaura, may find it confusing when it comes to scales size and pattern. Most sub-species have different scalation because they live in different habitats.
In general except for ornamental scales (horn ,crest) scales in tree dragons are mostly designed to evacuate water, this is why locality is very important when identifying acanthosaura, what sets them apart is the amount of rain fall between localities, the dryer habitat acanthosaura have the smaller body and belly scales, while the rainier habitat acanthosaura have the most keeled scales. If you look closely the scales of your dragon, you will notice some have pointing keels these are designed to expel water drops away from the lizards body, when these scales are numerous the lizard inhabits rainier habitats.

The belly scales of all acanthosaura are very keeled, this allows water and air the flow between the lizards and tree’s, allowing then to dry faster

Some smaller species like lepidogaster have the most keeled belly scales of all acanthosaura ssp, I believe this is because this specie spends a lot more time on the ground searching food in decaying logs then other acanthosaura’s, shorter horns and crest allows them to hide under roots and rocks. My personal observation surly points to this theory.

Coronata and crucigera both have much smaller belly scales then lepidogaster, they appear to occupy a dryer habitat and may be more arboreal hunters then most acanthosaura’s.

Of course this doesn’t change a thing in regards to captive husbandry, we have no need to drench these lizards in anyway. Well hydrated cages and available water is all they need.

I post this for all to read, this way I don’t keep it private in emails.
So pleas don’t be offended if I answer your questions on this forum.

Replies (6)

FroggieB Oct 03, 2006 02:02 PM

Very interesting in light of the fact that I was just reading a document that states that coronata spend most of their time on or near the ground. It seems to me that if these were lumped with lepidogaster for so many years and just this year re-split out then the behavior must be very similar.

I have just sent you a rather lenghty email. Don't know how much you will answer, or how much needs answers, just so much to absorb!
-----
Marcia - FroggieB Dragons
www.froggieb.com/MHDHome.html

jobi Oct 03, 2006 02:24 PM

I got your email but the link doesn’t work? Id really love to see it.

I will respond soon, got to get my kids at school first.

Yes I believe these smaller species occupy a lower niche then the larger acanthosaura’s.

We will learn a lot about these lizards in the up coming years, I will spend 6-8 months in Vietnam and hopefully learn much more about them. Right now my work is deductive from observing captive specimens, but it will all come together once I am back from Vietnam.

Belly scales of my lepidogaster.

Rgds

froggieb Oct 03, 2006 07:30 PM

>>I got your email but the link doesn’t work? Id really love to see it.

the document is a pdf file, acrobat reader. Do you have acrobat activated on your pc? if not I could perhaps send it to you.
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Marcia - FroggieB Dragons
www.froggieb.com/MHDHome.html

damnitbonnie Oct 04, 2006 08:23 AM

I am now looking closely at scales. You are giving me quite an education here. I never noticed the belly scales. Actually never thought about scales at all.
Thank you for your interesting posts.

I know why you have not published and I think it's a shame. You have so much to offer.
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BONNIE

Herptiles_net Oct 04, 2006 10:05 PM

Very interesting information!

Is there a particular publication with this information that I could use as a reference?

Thanks!
Christina
www.herptiles.net

jobi Oct 05, 2006 12:21 PM

I don’t think any work has been don on scales, habitat relation or scales function for that matter. My work is deductive from personal observations, it should not be interpreted as conclusive in anyway. Eventually I will publish these information's in a more refined state, with habitat and locality specimens observations.

Till then pleas read me as entertainment only.

Rgds

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