7/A – Fin shell - Pinna nobilis

The largest bivalve of the Mediterranean (it can reach 90 cm in height). Its characteristic shape is the origin of its scientific name. The surface of the shell is full of scaly thin plates while it is young, whereas it is smooth when fully developed. The color of the smallest samples is almost transparent white, whereas the adults are reddish brown. In recent years this mollusk has been affected by uncontrolled trawling and a reduction in Posidonia fields, which is the characteristic environment of the species.