Welcome to the forums!
I know of an Australian crayfish that's called a "zebra crayfish". Obviously that wouldn't be native to your area, so I'm not sure if that's a matter of semantics or the breeder breeds Australian species.
If indeed it is an Australian crayfish, which somebody here can hopefully confirm or deny (pics would help), then be sure you do not introduce a North American crayfish into the same tank as the Australian. North American crayfish can be carriers of the "crayfish pestilence", to which they are immune but other crayfish, such as the Australian variety, are not.
Like I said, some pics of the crayfish would help in identification. And again, welcome!