I snapped a picture of some whelks (in the back) in Cannes back in May. I'm not sure what the pointy shellfish are in the second picture taken in Barcelona. The third was just downright scary. I googled the "percebes" label and found an English translation - Goose Barnacles! I'll stick with clams and mussels, thank you very much. Although I think I would like to try the whelk.