Pencil urchin Stylocidaris affinis Riccio matita-2022-09-25-14h14m38s244
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Pencil urchin - Stylocidaris affinis

Pencil urchin is certainly one of the most curious and most characteristic species of Mediterranean urchins. Its common name derives from the shape of its thorns which resemble a classic pencil or "Lapis" as we say in Tuscany. However, these thorns are quite fragile as they are funny ...