It's hard to tell, I think it's a ray, the kind that swims like a butterfly in flight like it has wings.

If it is, it is indeed edible in Europe; if not, the owner please contact me with other pictures.

Added:

The skate, belonging to the order Chondrichthyes, Rays, is the collective name for a variety of flat-bodied cartilaginous fish. They are found in most water regions of the world, from tropical to near-Arctic waters, and from shallow to deep waters up to 2700 meters. ***9 genera in 3 families.

Rays have rounded or diamond-shaped bodies, with broad pectoral fins that flare out from the end of the muzzle to the root of the slender tail; some species have a pointed muzzle, formed by cranially protruding rostral cartilage. The body is monochromatic or patterned, most species have spines or spiny structures on the spine, and some have a power-generating organ within the tail that is not very powerful.

Rays vary in size: small rays are only 50 centimeters in adult size; large rays can be up to 2.5 meters long. Rays are harmless, bottom-dwelling, and often partially buried in the sand underwater.

Baidu Encyclopedia - Skate - Fish Species - Skate Profile Last word: A common commercial food fish in Europe.

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