there was a black market in the 1980's to 1990's on a clam called geoduck. they are the largest burrowing clamshttps://www.google.com/imgres?q=geoduck%20clams&imgurl=https%3A%2F%2Fglobalseafoods.com%2Fcdn%2Fshop%2Farticles%2Fgg_2048x.jpg%3Fv%3D1739168814&imgrefurl=https%3A%2F%2Fglobalseafoods.com%2Fblogs%2Fnews%2Fexploring-the-exquisite-flavor-of-geoduck-a-delicacy-worth-savoring%3Fsrsltid%3DAfmBOooarupCDB3RIe2GL1dMDLaC3vEWn6amqzurRkyUO-Xb0M1jJOZw&docid=Jz4vOj90LIEa8M&tbnid=8ZAixnZ5ex_fMM&vet=12ahUKEwiqif2u2JWQAxWLmokEHZLNMCEQM3oECB0QAA..i&w=1080&h=1080&hcb=2&ved=2ahUKEwiqif2u2JWQAxWLmokEHZLNMCEQM3oECB0QAA