Pangio spp.

[wasserscheu]

Thanks Matt and Thomas, I am respectfully impressed. I googled all available Pangio pic’s back and forth, there is no way to figure without studying the proper literature.
You guys make me start sorting my pictures…

[The.Dark.One]

Here are some better pics of my P. filinaris. She is exhibiting her natural colour now, like a pinky sandy colour. She’s not full of eggs now either.

Also, 3 patterns from one shipment of Pangio.

Attached files

[Matt]

Thanks o Mephistophelian one – any idea where those last three were collected?

Have sent pics of Wolfram’s fish to Dr. Bohlen – hopefully we’ll get a reply. Meanwhile, if Wolfram’s fish is indeed P. alcoides then what’s this?

Attached files

[wasserscheu]

o boy

[The.Dark.One]

Sorry, not sure of their origin. Please feel free to use the newer filinaris pics on the profile.

mmm. If Wolframs is alcoides I’m not sure what that one is. Some variant individuals of some normally barred species show no bars and perhaps that is what that is?

[Matt]

Thanks for the new pics Wolfram that fish is an oddball and no mistake!

QUOTE (The.Dark.One @ Feb 8 2011, 11:45 AM) <{POST_SNAPBACK}>

Some variant individuals of some normally barred species show no bars and perhaps that is what that is?

That was my first thought too, but no idea which one. sp. ‘PAN02’, adding them to P. oblonga and replacing with Wolfram’s fish in the absence of confirmation it’s P. alcoides. Opinions?

[Matt]

Ok so Wolfram’s fish isn’t P. alcoides. Dr. Bohlen says it:

‘is what I call ‘silverbelly’. They come in with undescribed species of brown Pangio that is close to oblonga. Among several 100 of completely brown specimens there are a few with this silver ventral half. Our genetic analyses suggest that it is the same species like the brown, just a different pigmentation form.‘

Will send on the pic of the darker fish and ask how to tell this undescribed brown one apart from P. oblonga…

[The.Dark.One]

QUOTE (Matt @ Feb 8 2011, 03:27 PM) <{POST_SNAPBACK}>

Ok so Wolfram’s fish isn’t P. alcoides. Dr. Bohlen says it:

‘is what I call ‘silverbelly’. They come in with undescribed species of brown Pangio that is close to oblonga. Among several 100 of completely brown specimens there are a few with this silver ventral half. Our genetic analyses suggest that it is the same species like the brown, just a different pigmentation form.‘

Will send on the pic of the darker fish and ask how to tell this undescribed brown one apart from P. oblonga…

Nice. Is Dr Bohlen revising Pangio again? Where does he/she work?

[wasserscheu]

exciting stuff, very interesting.

Thanks for all that work you do.

[Matt]

Dr. Bohlen is employed by the Institute of Animal Physiology and Genetics @ the Academy of Sciences of the Czech Republic in Libĕchov. He hasn’t made any reference to a new revision in the mails we’ve exchanged but has implied some new species descriptions may be in the offing shortly. He also has a website here.

Wolfram, thanks and you’re welcome. Couldn’t do anything without the collective input from everyone here!

P.S. forgot to mention this laterally-striped fish has nothing to do with P. anguillaris except being in the same species group. I’ve now another profile to write.

Attached files

[Thomas]

We need a crying Smilies I think

#340891

[Thomas]

QUOTE

Our genetic analyses suggest that it is the same species like the brown, just a different pigmentation form.

Maybe it’s the same with the golden and pink P. doriae? There was an website with pics of an golden and pink P. doriae, but I can’t find it anymore. But I have the two pics on harddisk and uploaded it here in the thread. Hope it is ok, otherwise delete it.

Between my first six golden P. doriae were one pink (at least a bit) doriae.

And what’s with the dark doriae? The patterns of the caudale from the golden and pink doriae are the same, but the “dark d’s” have another patterns on the caudale.

Cheers Thomas

Attached files

[Matt]

Those are Michael Lo’s pics I think? I’ve seen the pink ones on sale in the UK – wonder if the colouration is to do with being found in black water environments?

[Mark Duffill]

For me they are the same fish Matt, I do think the colouration is affected by loacation or food, I had both colours at one point but after several weeks all the pinky ones looked like the silvery ones.

I had the same thing happen with a batch of Schistura kohchangensis, they came in from two different locations, one group were grey and the others beige, once they had been in my tanks for a couple of months the beige fish lost their bright colouration and turned grey like the others.

I suppose it could be either water conditions or food type/food source which differs from one location to another?

[Matt]

Makes sense Mark – carotenoids in the natural diet maybe?

[Author]

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