i seriously doubt they're inlands... there are probably less than a dozen inlands in the entire US, except for maybe in zoos. they don't have anything to do with darwin carpets...
anyways, inlands cost several thousand dollars so unless the people you got them from are crazy or really like you, i don't know... you should put up some pics though.
the scientic name is M.s. metcalfei if you want to look up some info on them.