Description pair of common periwinklesAuthor Fisheries and Oceans Canada· JPG file - 356.73 kB - 1 734 x 1 183 pixelsadded on 2011-04-201 498 viewsCaRMS taxaLittorina littorea (Linnaeus, 1758)Citation CaRMS Photogallery, 2011 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License