This razor shell is a common, burrowing mollusc, which has an elongated fragile and narrow shell shaped like a cut-throat razor, hence the common name (3). The two halves of the shell, known as valves, are somewhat curved; they have a smooth, whitish outer surface with reddish or purplish-brown markings and are covered by an olive-green layer of protein known as the periostracum. The inner surface of the valves is white with a purple hue. The large muscular foot is reddish-brown in colour (2).
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