Lithophaga lithophaga, known also as date shells or date mussels, are a species of Bivalvia. They can be seen in northeast Atlantic Ocean, the Mediterranean Sea and the Red Sea. They are found on the Adriatic coast of Croatia and Montenegro under the name prstaci. They bore into marine rocks, creating a boring called Gastrochaenolites.
Several governments have restricted the collecting of these shells or even made it wholly illegal in order to protect the rocks on which they are found. The extraction of these shells from the rocks leads to desertification of the coast.
Historically, these shells are known to be a delicacy, cooked and served in a broth of white wine, garlic, and parsley.
Image Caption: Lithophaga lithophaga. Credit: Gronk/Wikipedia