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Patella ferruginea            Patella rustica
Gmelin, 1791 mm 70-80      Linnaeus, 1758 mm 20-30

G : bocca alta quanto la conchiglia

       mouth heigh as the shell

         Bulla striata          Luria lurida lurida
Bruguière, 1792 mm 15-30   (Linnaeus, 1758) mm 40-60

        Naria spurca             Neosimnia spelta
(Linnaeus, 1758) mm 20-35  (Linnaeus, 1758) mm 15-20

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