1) Mince the green onions.
2) In a bowl, mix the Siblou crab meat, the onions, and the mayonnaise.
3) Peel the cucumber. Using a peeler or a mandoline, make thin slices of cucumber along the length of the cucumber. Slices will be about an inch wide and 25 cm long. Do not use the seedy part of the cucumber.
4) Lay a slice of the cucumber, scoop a tablespoon of the crab mixture and deposit at one end of the cucumber slice. Starting at the crab meat end, roll the cucumber slice to make a small cylinder. Hold the roll together with a toothpick or a small bamboo skewer. Repeat until all the crab meat has been used up.
Serve on an appetizer plate with garnish