Id this catfish ...

[thebiggerthebetter]

Vaillantii was the first thing that popped up in my head, I saw a pic of a claimed one in a recent thread that looked like the fish originally shown, but then there were others posted that were also claimed to be vaillantiiand were obviously different. Hence my hesitation to post what I thought it was. Don't think we know what true one looks like, may have to look at taxonomic descriptions and go from there to ID if they can be found. But the two fish posted are different, head proportions, eye placement and size mouth shape, whisker length, number of whiskers. In short, idk what either fish posted is truly lol.
thebiggerthebetter what's your thoughts?

I like your analysis and I too am stumped.

I am where I was 5-6 years ago on these two fish..................... plus the recent case of vaillantii identity crisis by vincentwugwg described here http://www.monsterfishkeepers.com/forums/threads/brachyplatystoma-i-d.673058/ ................. plus the inconsistencies in the pictures on Planet Catfish.

5-6 years ago the fishes looking like the one in the OP started to appear in US and UK.

Guesses were

-- Pimelodus albicans (one I had turned out to be albicans 7 years ago)
-- iheringichthys sp
-- duopalatinus
-- vaillantii (supposed ID of a fish I recently got from Wes)

Here is a collection of links I piled up in here: http://www.planetcatfish.com/forum/viewtopic.php?f=13&t=38098&hilit=vaillantii

Feel free to use a starting point for your own ID research and keep us in the loop

 

[Renegade Aquatics]

well nice to see my knee-jerk ID got this ball rolling
so research time it is

 

[michel janio li]

Thanks for everyone attention ... the location was important to eliminate some guesses, like Pimelodus albicans o Iriheringichthys .. Both are from Parana river system ... I eliminate vaillantii, mouth is too different .... After some research and help from other people, we figure out ... Is a Propimelodus ... Everything match .. Thanks everyone for the help and attention ....

 

[Hendre]

Very cool catfish. I am hopeless when it comes to catfish. Good luck on keeping and finding its true identity

 

[thebiggerthebetter]

That's a nice guess.

Not much time to look into this but one thing I noted is the adipose fin on your fish appears too tall and pointed versus what found in Propimelodus.

I like this guess. I will look further at it.