What is a shellfish that found on the seabed?

There are many types of shellfish found on the seabed! To give you a more specific answer, I need a little more information.

Could you tell me:

* What kind of environment are you interested in? Are you thinking of a specific ocean, or a particular depth?

* What kind of shellfish are you looking for? Are you interested in bivalves (like clams and mussels), crustaceans (like crabs and lobsters), or something else?

Once I know more about what you're looking for, I can give you a much better answer!