Common Periwinkle (Littorina littorea) Drawings & Dimensions

The Common Periwinkle (Littorina littorea) is a small edible sea snail and a marine gastropod mollusk that has gills and an operculum. They are native to the northeastern rocky shores, and they were introduced to the northwestern Atlantic Ocean. The shell of the Common Periwinkle is broadly ovate.

普通海蛞蝓（Littorina littorea）是一种小型可食用海洋软体动物，隶属于腹足纲，具有鳃和贝壳。此类物种原产于东北部岩石海岸线，后引入北大西洋。普通海蛞蝓的贝壳呈广卵形。