Grunt Fish (Isaki) from Saga
Goma Mackerel (Goma Saba) from Fukuoka
Sometimes people tell me that they do not like mackerel because it is fishy (well, afterall it is a fish). I personally think that it has a big flavor and it is definitely one of my favorite. This is also another fish through which you can see the sushi chef's skill.
Pike Eel (Hamo) from Kumamoto
Sea Eel (Anago) from Kumamoto
Unlike in the US, you never see any eel (unagi) in sushi restaurants in Japan. What is served is sea eel (anago).