Arctica islandica
<em>Arctica islandica</em> (Linnaeus, 1767)
Outside of left valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Inside of left valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Hinge detail of right valve with arrow indicating the characteristic crenulation

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Inside of right valve with pallial sinus highlighted in red

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Inside of right valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Inside of right valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.
Outside of right valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Lleyn Peninsula. Length = 100mm.
Outside of right valve

Steve Wilkinson
Specimen collected from Porth Dinllaen, Llegn Peninsula. Length = 100mm.