Pinna nobles is a symbol of beauty, rarity, longevity and sustainability Pinna nobles, common name the noble pen shell is a specie endemic to the Mediterranean sea. The bivalve shell is usually 30–50 cm (1.0–1.6 ft) long. It is relatively fragile to shell damage and purify the marine pollution. It attaches itself to rocks using a strong byssus composed of many silk-likeLire la suite « What is Pinna nobilis? »
Voyages en Sicile 