Photograph by Dirk Schories

Locality:
Norway

Literature for identification (localities mentioned):
Hayward & Ryland, 1995; p. 709 (Norway to Mediterranean)

Grevelingen, The Netherlands

Britain / Ireland
from Ulster Museum webpage

U.S. west coast
from Stachowicz Lab Website

U.S. west coast
from Stachowicz Lab Website

U.S. west coast
from Stachowicz Lab Website

Grevelingen, The Netherlands

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast

U.S. north east coast