
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 Nov 16, 2023. Captured Jun 7, 2022 09:17 in 1565 Harpswell Islands Rd, Orr's Island, ME 04066, USA.