Thank you VERY much for drawing this to my attention!
When I purchased the lizard from the pet store (for around $50 if I remember correctly), I was told it was an Argentine Black and White. Having purchased an animal from this store in the past, and having been fairly impressed with the staff and the care they took of their animals, I trusted what the owner told me. Apparently, he didn't know the difference.
I just grabbed my lizard, brought it to the computer with me, and compared it (and its scales) to several websites that showed pictures of the two; it looks like you made a good call. Clearly, my baby is not the Argentine B & W Tegu--which is good (I guess) since I didn't really want a huge adult tegu. For a Columbian, this baby seems tame enough.
It looks I have a lot to learn about tegus, and I'm looking forward to becoming more aquainted with these beautiful, smart lizards. Thanks again for the heads up on the species info.
élan
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0.3.0 Collareds
1.0.0 Mali Uromastix
0.0.1 Colombian Tegu
2.1.0 Green Anole
1.0.0 Chinese Dwarf Newt
1.1.0 California Newts
1.0.0 White's Treefrog
0.0.1 Green Tree Frog
1.0.0 Fire bellied toad
2.1.0 Felines
1.2.0 Canines
1.0.0 Equine