The common periwinkle or winkle (Littorina littorea) 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.
Sources and Credits
(c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
You can copy this taxon into another guide. If you are one of the
editors of this guide it should copy everything, but if you're not, it
will only copy the licensed content.