Small European locust lobsters. You can find in fish restaurants around mediterranean cost. A Slipper Lobster, Scyllarus arctus lives in warm waters found in the Mediterranean sea. They live on stony ground, in caves,and can also be found on muddy bottoms or in seagrass beds.
This photo was taken in front of a fish restaurant.
OK, they say sea food is healthy but these animals does not seem very beautiful. I did not eat them :))