44 Tonicella marmorea

44 Tonicella marmorea

Length 32mm. LWS. Isle of Lewis, Scotland. April 2018. Leg. D.W. McKay & S. Taylor.
The large muscular foot and flat ventral surface of the girdle provide a secure grip of the rock surface aided by the articulated shell conforming to uneven surfaces. When the foot is fully spread, it and the mantle fold/lappet close and conceal much of the pallial cavity.

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