Locality:
U.S. north east coast

Literature for identification (localities mentioned):
Kott, 2001; p. 339 (Western Australia, South Australia, North Sea, Irish Sea, English Channel, Mediterranean Sea, Adriatic Sea, Atlantic Ocean, South Africa, Indian Ocean, California, Japan, etc.)
Monniot et al, 1991; p. 120 (New Caledonia)

Grevelingen The Netherlands

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

Croatia

U.S. north east coast

U.S. north east coast

U.S. north east coast

west east Atlantic grey transparent colonial tropical