It was not expensive at all, maybe 10 bucks, and it is about 3/4 of an inch across its shell. As to other crabs, there are (in seperate tanks) this pompom, a porcelain, a scarlet hermit, and an electric blue hermit.
I'm sorry, but as it was loading I just caught a glimpse of his eyes, and suddenly a french accent popped into my head saying 'Ahhh, are you looking at me? How dare you look at me while I'm eating!'
He is really cool looking, I've never seen (or heard) of one of those before.