I think of fusilli as long, hollow, corkscrew shaped pasta. Just like what is shown on the fusilli wikipedia page: http://en.wikipedia.org/wiki/Fusilli
However, at a very upscale restaurant I ordered a fusilli dish and was served what looked to me like rotini. An entirely different pasta. At first I thought they were just wrong, but with some Googling and even consulting a cookbook I'm now just confused. In one cookbook - they had a picture of a rotini, and it was labeled "fusilli (rotini)".
However the wikipedia page specifically says that rotini and fusilli should not be confused.
Anybody want to clear this up for me?