Scotland, Wales, Brittany, both sides of the English Channel, Mediterranean coast of France, NE Sardinia (Italy). [details]
The specific name (celticum, L.-celtic) relates to the distribution of the species in Wales, Scotland and France. [details]
Some of the larger specimens collected at Milford Haven, Wales (collected in July 1987 or August 1985) were ... [details]
Wales (UK), Milford Haven, Dyfed, muddy sand to muddy sand with shell and gravel, 6-19 m. [details]
Type material of Scalibregma inflatum is not known to exist (Støp-Bowitz, pers. comm. in Mackie, 1991). [details]