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
Found in soft substrate on the lower shore and in the shallow sublittoral. Present on the south coast of England from the Isles of Scilly to East Sussex with records also from the east coast of England, south Wales and north-east Scotland. Elsewhere south to the Iberian Peninsula, into the Mediterranean, along the north African coast to Morocco. There are numerous pre-1950 records for Cornwall but this species seems to have become much scarcer in recent years. Living specimens have recently been found in the Isles of Scilly (1983) and in the Helford Estuary in 2005 and 2007.
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.