Here's what's legal to bring into the USA: If it's CITES listed, it must be permitted and declared. If it's not CITES listed, it must be declared. You declare it with a form 3-177. Any reptiles brought into the USA via airlines must be part of the cargo, not in the passenger space. It will be inspected by Customs and FiSh and Wildlife. If ANYTHING is amiss, including proper packaging and labeling, your animals will probably be confiscated (you'll never get them back) and you might be fined.

So unless you're willing to go through all the hassles, you're just better off paying someone on our side of the border to produce that animal. Plus, it's better to pay a domestic breeder than to make headlines as an international animal smuggler.