He was about 2" long and easily 1/2" in diameter if not a little more. They can give a really nasty bite as they have big jaws. Once upon a time I had two of them in a jar and the bigger one bit off the smaller one's legs before it killed the smaller one. It did the same thing to a Black Widow spider.Whoa, I've never seen one of those! He looks huge, how big was he?
You won't find them in wet areas but they are around in the dry sandy places. I used to see them around all the time but between the Grackles, Robins, chickens, guineas and turkeys, they disappear very quickly.