Is my Tegu an Argentine B/w or something else?

[Trigger3lite]

So I'm 100% sure it's an Argentine B/W but my dad is paranoid because it has too much yellow so he thinks it's a columbian/gold tegu. It's belly is extremely yellow too. Someone take a look at these pictures and confirm that I'm right.

Also the guy that sold it to me (kicksballs.com) told me that it's a Chacoan Giant. I compared it to some of the pics online and see no resemblance. Do some of them not have white heads as I've noticed in pics?

Do any of you have any experience with kicksballs?

http://imgur.com/a/bpxuZ

 

[Roadkill]

Colour, for the most part, in tegus has no bearing on what species it may or may not be. That is without doubt a Salvator merianae.

Now, when it comes to "morphs", no one has given any kind of valid, definitive description of what a Chacoan Giant actually is. If that's what you want, then that is what you have.

 

[Justin]

There should probably be a sticky on this subject.