Cerithiopsis tubercularis. Glossy maroon shell. 3 spiral rows of tubercles on each whorl, except 4 smooth apical whorls of protoconch. Aperture has siphonal notch. On fine red seaweed growing on stone among muddy sand. Menai Strait, Wales, Aug. 2010.

Submitted by Ian Smith on Wed, 23/11/2011 11:27
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I.F. Smith
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