Peel and seed the cucumbers and cut into 1 inch chunks. Toss with the salt and place in acollander over a bowl to drain for at least 2 hours. Rinse and drain again.
Combine cucumbers, garlic, parsley, lemon zest and juice,chives and Worchestershire sauce in a food processor and blend until smooth. Add sour cream and blend again. Add salt and pepper to taste. Chill for 2 hours or more to allow flavors to blend.
Retaste and correct salt and pepper if necessary. Ladle into small bowls or cups and garnish each with a few shrimp.