Fabrice Cahez / Myrtle (Vinca minor) flowers, Vosges, France, April.
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Gary K. Smith / Dwarf periwinkle (Vinca minor) flower, on white background.
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Fabrice Cahez / Lesser periwinkle (Vinca minor) Vosges, France, March.
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Alex Hyde / Common Hermit Crab (Pagurus bernhardus) in shell of Edible Periwinkle (Littorina littorea). This close up shows the compound eyes. Northumberland, UK. May.
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Alex Hyde / Common Hermit Crab (Pagurus bernhardus) in shell of Edible Periwinkle (Littorina littorea). Photographed on a white background in mobile field studio. Northumberland, UK. May.
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Alex Hyde / Common Hermit Crab (Pagurus bernhardus) in shell of Edible Periwinkle (Littorina littorea). Photographed on a white background in mobile field studio. Northumberland, UK. May.
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Christophe Courteau / Common periwinkle feeding {Littorina littorea} Brittany France
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Nick Upton / Dense gathering of Common periwinkles (Littorina liitorea) of all ages in a rockpool lined with Coralweed (Corallina officinalis) and Irish moss (Chondrus crispus), North Berwick, East Lothian, July
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Nick Upton / Dense aggregation of Common periwinkles (Littorina littorea) in a rockpool, North Berwick, East Lothian, UK, July
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Nick Upton / Adult Common periwinkle (Littorina liitorea) with well worn shell on rocks encrusted with Common barnacles (Semibalanus balanoides) exposed at low tide, Crail, Fife, July
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Nick Upton / Dense gathering of adult and young Common periwinkles (Littorina liitorea) on red sandstone rocks exposed at low tide, North Berwick, East Lothian, July.
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Nick Upton / Dense gathering of adult and young Common periwinkles (Littorina liitorea) on red sandstone rocks exposed at low tide, North Berwick, East Lothian, July.