Shellfish, Shell
The shellfish radical and the shellfish kanji are the same! It can be just the shell part too.
Shellfish are shellfish, you know?
ばい
かい
None
To get some shellfish, all you have to do is hop in your kayak (かい) and get some. Shellfish live in the water.
Imagine rowing your kayak out into the ocean to collect shellfish. Imagine the color and shape of the kayak. Feel the spray of the salt water and the taste of some fresh shellfish, right out of the ocean.