I think most people know SUSHI, which is traditional food in Japan. In Brazil there are many sushi restaurant. (It surprized me!) In fact around my house there are three of them. If you have never eaten it, I want you to try as possible as soon.
There are many seafood ingredients for Sushi:
9, A sea urchin
and also eggs, vegitables... so on. I guess numbers of variety could be more than 100.