Ascophyllum nodosum is a large, common cold water seaweed or brown alga in the family Fucaceae. Its common names include knotted wrack, egg wrack, feamainn bhuí, rockweed, knotted kelp and Norwegian k
Ascophyllum nodosum
Ascophyllum nodosum natural range
Contrast between darker colored shoots and lighter colored fronds
Epiphytic red algae on knotted wrack at Roscoff, France
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 periw
Sea snail, underneath, full view
Shell of the common periwinkle
Remains of an ancient meal. Winkle shells from Cantabrian Lower Magdalenian layer (15 000 before present) in the Altamira cave