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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Alex Hyde / Common Hermit Crab (Pagurus bernhardus) in Flat Periwincle shell (Littorina obtusata). Isle of Mull, Scotland, UK. June.
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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 / Common brittle star (Ophiothrix fragilis) moving over floor of rockpool encrusted with red algae past Flat / Purple Top shell (Gibbula umbilicalis), Rough periwinkle (Littorina saxatilis) and Thick-li...
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Nick Upton / Common Blenny / Shanny (Lipophrys pholis) hiding under Coralweed (Corallina officinalis) in a rockpool near a Common / Edible periwinkle (Littorina liitorea), Rhossili, The Gower peninsula, UK, July.
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Nick Upton / Common Blenny / Shanny (Lipophrys pholis) hiding under Coralweed (Corallina officinalis) in a rockpool near a Common / Edible periwinkle (Littorina liitorea), Rhossili, The Gower peninsula, UK, July.
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Alex Hyde / Selection of gastropods commonly found in rockpools, clockwise from top left: Periwinkle (Littorina compressa / nigrolineata), Dogwhelk (Nucella lapillus / Thaius lapillus), Common Flat Periwinkle (Li...