Smooth Periwinkle

Littorina obtusata

"Littorina obtusata", common name the flat periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.
Smooth Periwinkle - Littorina obtusata There is so much variety with this species.

Habitat: Saltmarsh edge
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Appearance

The maximum recorded shell length is 13.5 mm.
Smooth Periwinkle - Littorina obtusata Low spire and smooth whorls; color is variable. ~10 mm. Common among rockweeds.

Habitat: Found in a tide pool during low tide
https://www.jungledragon.com/image/99935/smooth_periwinkle_-_littorina_obtusata.html Geotagged,Littorina,Littorina obtusata,Summer,United States,flat periwinkle,gastropod,periwinkle,winkle

Distribution

This marine species occurs wherever brown seaweeds grow. It is widely distributed : the Baltic Sea, in European waters from Norway down to Southern Spain, in the Mediterranean Sea, in the Northwest Atlantic Ocean along the Gulf of Maine.
Smooth Periwinkle - Littorina obtusata Habitat: On seaweed in the intertidal Geotagged,Littorina,Littorina obtusata,Smooth Periwinkle,Spring,United States,gastropoda,periwinkle,snail

Habitat

This species can be found in the littoral and sublittoral zone on rocky shores and piers, usually on brown algae of the genus "Fucus". Minimum recorded depth is 0 m. Maximum recorded depth is 110 m. The habitat may define its color. On sheltered shores it has a lighter and uniform color. On exposed shores its color is darker and chequered.

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Taxonomy
KingdomAnimalia
DivisionMollusca
ClassGastropoda
OrderLittorinimorpha
FamilyLittorinidae
GenusLittorina
SpeciesL. obtusata