According to everything I've found, L. Aurea is classified Hylidae - a ground-dwelling tree frog. Mine is only about 2" long, nose-to-vent, so she's under the average 2.75", but yup, I've seen 4" ones in captivity. (4.5" and it's more likely to be L. raniformis.)

I've asked a question on the frog auction, but the seller has yet to reply. The photo certainly looks like L. aurea, but if it's not, then it's L. raniformis (Southern Bell) or L. ewingii (Brown Tree Frog), because that's all you can get in this country. Hopefully the seller replies, and doesn't just hide my comment so it doesn't scare off the punters (although someone has already bid, so the frogs are moving on regardless). I don't have high hopes; the seller has already attempted to sell the frogs once already, but misrepresented the goods so the sale didn't go through.