Patella caerulea from Italy
A remarkably symmetrical grown and big specimen of Patella caerulea Linnaeus, 1758 from Grado, Italy (58,2 mm).
Now also on www.gastropods.com: http://www.gastropods.com/3/Shell_1393.shtml
Now also on www.gastropods.com: http://www.gastropods.com/3/Shell_1393.shtml