How do you say "crevettes roses" in French?

‘Crevettes roses’ *(f) is French for ‘prawns’ – the term literally translates as ‘pink prawns’. The singular, ‘crevette rose’, is pronounced identically to the plural in French.  A shrimp which is a crevette grise (grey prawn).

In summary: 

1. a shrimp is a crevette grise
2. a prawn is a crevette rose
3. a langoustine is also known as is in English. Another name for a langoustine is a ‘Dublin Bay prawn’
4. a lobster is a homard
5. a crayfish (fresh-water) is an écrevisse
6. a langouste is a spiny or rock lobster (it has no claws)

How do you say ‘prawn’ in Italian and Spanish?

Italian        gamberi (di mare)

Spainsh     gambas