That one looks darn near identical to mine, duckface and all! Lol
Sent from my iPhone using MonsterAquariaNetwork app
That is one trait of metaense that other Pseudoplatystoma do not have. So I am thinking that ID of metaense could be as simple as that, but besides the morphological characteristics the pattern matches also. If you'd like I can forward your pics to Dr. John Lundberg for proof positive ID, but I would definitely not think it's any of the other 7 species.