Follow-up. Using Google Image search, I discovered that the original source of this photo may be here:
http://aquafin.jp/blog/?p=7180
The website purports that the fish in the photo above is amongst a group of plecos they call "Allenker Red Labyrinth Tiger" plecos (
is also nicknamed Alenquer tiger).
But there is a lot of variation in the fish on that page:
One fish looks like a perfectly normal
L397:
Then there is the fish above with a spotted tail:
And finally there is one at the bottom of the page with a labyrinth pattern - doesn't resemble
L397 at all; but if the same species, it could be a genetic mutant color form, or even a congenital abnormality in color.
So thinking back to the original photo at the top of this thread, maybe the fish is an
L397, but its spotted tail is just extreme individual variation... I'm just speculating.
In response to my query about this, Andreas Tanke posted on Facebook that there are several different undescribed Alenquer tiger
Panaqolus, so I'd guess this fish with the spotted tail is out of that area but might not be
L397. But on the other hand, he also said that he knows of no other
Panaqolus (besides
) with a consistently spotted tail, and he said this is not
L206.
Cheers, Eric