Juvenile Rissoa parva. Shell height 2.6mm. c: costa (yet to develop on much of body whorl). s: bifid snout. l: brown spiral line connecting transverse brown streaks (spiral line absent on some shells). LWS, Menai Strait, Wales. September 2011.

Submitted by Ian Smith on Fri, 07/10/2011 19:19
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I.F. Smith
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