The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
A more northern species extending from the Arctic south to the English Channel. Fairly frequent in the northern North Sea and in deeper, colder water off western Scotland and Northern Ireland. Decidedly rare in the south with three old records from Falmouth Bay and a more recent one (1983) from Bishop' s Rock, Isles of Scilly. On stones and shells from shallow water to 600m.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.