No they were much smaller. I don't know if they're just small frogs or what. They were fond in a small pond/stream so I don't think they would get very big. I don't think they are any sort of bullfrog.
However, they are very green. Like a dark green. And they've got little spots/dots all over their back. They have white bellies too. They are really smooth too...well right after they have been in water of corse [sp?]. They don't really have big bumps on them when they are dry either.
I'll try and get some pictures if that didn't help at all. =P