Scampi, or Langoustines or Norway lobsters – Nephrops norvegicus – are roughly the size of a large crayfish and fished from silty bottom regions of the open Atlantic Ocean, and parts of the Mediterranean. The fleshy tail of the Norway lobster is closer in both taste and texture to lobster and crayfish than prawn or shrimp.

Norway lobster are also known as Dublin Bay prawns, though the term "prawn" can be confusing since it is sometimes used to describe several varieties of shellfish: the first group includes members of the lobster family such as scampi (langoustine in French and cigala in Spanish), while the second takes in large shrimp, particularly those that live in fresh water.

However, in terms of biological classification, lobsters like scampi are of a different family from prawns/shrimp.