
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 Feb 16, 2020. Captured Jun 18, 2019 08:35 in 1563 Post Rd, Wells, ME 04090, USA.