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Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 00:02
by SSmith
Folks,
Back in October we spent some time collecting in the Nauta/Iquitos area, and came across a number of catfishes that I am having some trouble identifying. If anyone cares to comment on our ID, or add where we are missing ID's, I would very much appreciate it! As not to swamp you, I will only post a few pics. I believe we caught somewhere around 120ish species.

Many thanks in advance!
unknown
unknown
unknown
unknown
Agamyxis pectinifrons
Agamyxis pectinifrons
Ancistris sp.
Ancistris sp.
Auchenipterides sp.
Auchenipterides sp.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 08:33
by Silurus

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 20:03
by backstreetgambler
Don't hold back man. Swamp away. I for one love these threads

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 20:34
by NCE12940
backstreetgambler wrote:Don't hold back man. Swamp away. I for one love these threads
A second to that! :-BD

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 22:23
by SSmith
Silurus wrote:First one:

Second one:
Thanks for that, I discounted P. blochii due to the lack of pigmentation, but I see on your link that this is extremely variable.

backstreetgambler wrote:
Don't hold back man. Swamp away. I for one love these threads

Famous last words! I think the post limit is 5, but I'll throw a couple more on here!
I appreciate the help.
B. raninus
B. raninus
Auchenipterus sp
Auchenipterus sp
Anadoras grypus
Anadoras grypus
Amblydoras aff affinis
Amblydoras aff affinis
I know this one is common, just haven't got around to looking it up.
I know this one is common, just haven't got around to looking it up.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 22:26
by SSmith
Corydoras sp.
Corydoras sp.
Corydoras sp.
Corydoras sp.
C. aff. ambiacus
C. aff. ambiacus
Brochis splendens
Brochis splendens
Brochis multiradiatus
Brochis multiradiatus

Re: Catfishes from Iquitos/Nauta Peru

Posted: 13 Mar 2016, 23:28
by Silurus
Image
I believe this is Auchenipterus brachyurus.
Image
Isn't this ?

Re: Catfishes from Iquitos/Nauta Peru

Posted: 14 Mar 2016, 01:25
by SSmith
Silurus wrote:
Image
I believe this is Auchenipterus brachyurus.
Image
Isn't this ?
Hmm, I like Auchenipterus brachyurus, thank you! There doesn't seem to be much out there about this genus, may I ask how you came to that conclusion?
Yes, S. lima is it, I knew it was a common fish, I just couldn't for the life of me remember which one.

Thanks again for your help.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 14 Mar 2016, 09:32
by panaque
NCE12940 wrote:
backstreetgambler wrote:Don't hold back man. Swamp away. I for one love these threads
A second to that! :-BD
And another one....

Re: Catfishes from Iquitos/Nauta Peru

Posted: 14 Mar 2016, 09:37
by smitty
Sorry I can not help in identifying any of them that have not been identified so far. But thanks for the post and thanks to those that are helping give those of us that don't know an education.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 14 Mar 2016, 23:36
by Silurus
Image
I think this is Tympanopleura cryptica
Image
...and I thought this is .

Re: Catfishes from Iquitos/Nauta Peru

Posted: 16 Mar 2016, 23:38
by SSmith
Silurus wrote:
Image
I think this is Tympanopleura cryptica
Image
...and I thought this is .
Thanks again!

Re: Catfishes from Iquitos/Nauta Peru

Posted: 20 Mar 2016, 16:47
by naturalart
SSmith, is there at least some faint patterning on the first pimelodid? Because although I like Silurius's id., it sure looks like it could be something like P. pohli or P. fur. At least some patterning would allay some of my equivocation.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 20 Mar 2016, 22:19
by Silurus
Both P. fur and P. pohli are only known much further south of the Amazon River drainage (in the Rio São Francisco drainage).

Re: Catfishes from Iquitos/Nauta Peru

Posted: 21 Mar 2016, 13:16
by naturalart
Thanks Silurus, Im aware. And, as Im sure you know, stranger things have happened. Just hoping SSmith could maybe post another pic showing some patterning. I've never seen a pure 'platinum' P. blochii before (which I would not say is out of the realm of possibility either).

Re: Catfishes from Iquitos/Nauta Peru

Posted: 22 Mar 2016, 00:52
by SSmith
naturalart wrote:Thanks Silurus, Im aware. And, as Im sure you know, stranger things have happened. Just hoping SSmith could maybe post another pic showing some patterning. I've never seen a pure 'platinum' P. blochii before (which I would not say is out of the realm of possibility either).
I will have to dig through many, many, photos, but I will check!

Edit:
I actually got lucky and found the original raw files pretty quick. There appears to be absolutely no pigmentation outside of the silvery sheen. I didn't upload any more pics because they really look exactly same as the one I uploaded.

Re: Catfishes from Iquitos/Nauta Peru

Posted: 22 Mar 2016, 05:31
by naturalart
Thanks SSmith.