Hydrobia ulvae. Green algae on shell. Un-patterned black/dark brown head with light bifid tip. Grey dorsal surface on foot. Shell height 5.4mm. From puddle in wet sand at mouth of Dee Estuary. Salinity 33p.p.t.

Submitted by Ian Smith on Tue, 30/08/2011 21:34
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I.F. Smith
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