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The shape of the caudal peduncle patch. A. sp. Pebas has a wedge-shaped (◄) patch formed from the caudal spot and a part of Bar 7 that is smaller than the caudal spot. A. sp. Papagei has a double patch (∞) formed from the caudal spot and a part of Bar 7 that is about equal in size to the caudal spot.
I would call them A. sp. Pebas, because of the spots in the caudal fin.
"True" Papagei don't have spots.
The "∞" caudal spot can easily be "misinterpretated", because some Pebas forms have a quite similar spot.
You should also have a look on the breeding colour of the female. Papagei femals have two spots on their flanks, Pebas have a row of 5-6 spots.
Here are pictures of A. sp. Papagei for comparison.