I have got to mess around with some Japanese carp 鯉 mermaids.
Hey, I just noticed that both 鯉 and 狸 (Japanese raccoon) have the main "home town" 里 radical! One with fish, and one with beast as the hen 偏, obviously. Makes that easier to remember, no?
Let me know if you're interested in an on-line Japanese class, by the way.