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Sitka Periwinkles, Littorina sitkana! This intertidal periwinkle displays colour polymorphism. Canada,Geotagged,Littorina sitkana Click/tap to enlarge PromotedSpecies introCountry intro

Sitka Periwinkles, Littorina sitkana!

This intertidal periwinkle displays colour polymorphism.

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The Sitka Periwinkle

"Littorina sitkana" is a species of small sea snail, a marine gastropod mollusc in the family Littorinidae, the winkles. It is commonly found in the high tidal zone and the splash zone.

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Similar species: Littorinimorpha
Species identified by gary fast
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By gary fast

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Uploaded Nov 18, 2025. Captured in 565 Potlatch Rd, Strathcona B, BC V0P 0A1, Canada.
country flag of Canada Explore Canada 1,930 861 0