Altifrons
Not altifrons with the big black spot IMO.
I was told true surinamensis were imposible to find so I never figured these were them.
Sent from my SCH-R830 using MonsterAquariaNetwork App
It's all about the stress bars in young geos for ID. Most are straight vertical, but a surinamensis has "bent" and "split" bars, which yours has.
Sent from my iPad using MonsterAquariaNetwork app