Common limpets (Patella vulgata) and acorn barnacles (Balanus perforatus) attached to rocks exposed at low tide, Dorset, England, United Kingdom, Europe

Common limpet (Patella vulgata) surrounded by acorn barnacles (Balanus balanoides), Loch Carron, Wester Ross, Scotland

Common limpet (Patella vulgata) surrounded by acorn barnacles (Balanus balanoides), Loch Carron, Wester Ross, Scotland

Hawaii, Oahu, A bunch of fresh Limpets Opihi laying on a rock.

Hawaii, Oahu, A bunch of fresh Limpets Opihi laying on a rock.

Hawaii, Oahu, A bunch of fresh Limpets Opihi laying on sand.

Hawaii, Oahu, A bunch of fresh Limpets Opihi laying on a rock.