
The common periwinkle or winkle is a species of small edible whelk or sea snail, a marine gastropod mollusc that has gills and an operculum, and is classified within the family Littorinidae, the periwinkles.
Similar species: Littorinimorpha
By Christine Young
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Uploaded Aug 15, 2020. Captured Aug 12, 2020 12:27 in 36 Potts Point Rd, Harpswell, ME 04079, USA.