From what I see the tocantins has a different head... Look at the very bottom picture & you can see the tocantins underneath the xingu... See how his head drops down abruptly & the RA 's taper down in a long, gradual way. Plus he is shorter bodied, they are longer.
Is this one the Tocantin? If so, then, this bass shares the same typical head slope as a Ocell. Tomka, you have more cichla then any C.r.E.a.m guys I know. I would like to talk to you about all the differences you have with your bass. Through PM's or through phone or even to person, just let me know bro. I'm pretty sure I/We know where all of your bass came from.
Hayn- You can PM me anytime... Here is the Tocantin I got from Fish Heav3n's first batch, and a smaller Tocantin I have that came from his second batch... The one above you posted is an Araguaia from D.O.