Not wild caught :S
He obtained them from another collector and they were given to him as Limnodynastes peronii. The previous owner was thinking about releasing them (!) and my friend said that he would look after them, as releasing them was not a good idea for obvious reasons.
After he had set up their enclosure, I told him that they didn't look like striped marsh frogs. I told him that this is because they lacked stripes. I told him that it would be wise to find out what species they are though, as this is necessary to ensure that they have the specific care that they need.