Molluscs in the United Kingdom

The seven British mollusc sites are all cold-water dives, and three are wrecks: Scapa Flow, at 45 metres, Plymouth Sound and the Scillies. The three species are the common octopus, the common cuttlefish and the great scallop, none assessed by the Red List. The Farnes appear twice, as an archipelago and as the Longstone lighthouse.

Where

Places come from reviewed species-place links; the species shown at each place are only those in this group.

Which species