Frog identification?? It is as dark frog with a white/cream underbelly with spots, and he's lost!!!?

I bought it as a tadpole and put it with my fire bellies crabs and newts. He ate them all except for one newt. And whats really ironic is that while i was trying to take his picture to post for viewing, i found that he has escaped. So where do you look for frogs in your house how long can frogs live without water?
Answers:
He could be anywhere and the timer is on because it wont take long at all for him to dry up and die! Next time keep a well-closed enclosure no matter what!!