What is the maximum speed at which a lobster can move?

How do lobsters move? They have 10 walking legs; the front three pairs bear claws, the first of which are larger than the others. Using these they normally move by walking on the sea floor: this process is very slow. However, there is another way in which they move. When they flee, they swim backward quickly by curling and uncurling their abdomens. A speed of 5 m/s (11 mph) has been recorded. This is known as the caridoid escape reaction.