BC seafood

Which seafood is it? Read the description and choose the correct one.

1. 
They are the world's largest burrowing clams.

2. 
It is used for medicine in some cultures.

3. 
They can cost as much as $30 per pound.

4. 
There are more than 630 types of this grown in B.C.

5. 
Only the giant red ones are harvested for food.

6. 
You can eat this fresh or dried.