Seafood Platter

If the seafood platter is the main course, you can consider the following quantities per person:

1/2 large crustacean (such as spider crab or lobster or langoustine),

6 langoustines,

6 oysters,

4 clams or cockles,

100g of periwinkles,

100g of whelks,

100g of pink and/or gray shrimps.