Locality:
Oosterschelde, The Netherlands

Literature for identification (localities mentioned):
Hayward & Ryland, 1995; p.707 (North Sea, Pacific)

Grevelingen, The Netherlands

U.S. west coast
from Stachowicz Lab Website

U.S. west coast
from Stachowicz Lab Website

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

Prince Edward Island, Canada

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