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
Attribution Non-Commercial
Uploaded Sep 8, 2023. Captured Sep 6, 2023 09:52 in PXJF+9G Harpswell, ME, USA.
