Cerithiopsis tubercularis. No snout. Small respiratory siphon, with reflected bifid tip showing black lining, in siphonal channel of shell. 3 spiral lines on base of shell (grey lines indicate). On fine red seaweed. Menai Strait, Wales, Aug. 2010.

Submitted by Ian Smith on Wed, 23/11/2011 11:33
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I.F. Smith
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