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
On fronds of the seaweed Channelled Wrack Pelvetia canaliculata at the entrance to the Bude Canal in north-east Cornwall, and on the foreshore at Channals Creek, Trelissick. The only 20th and 21st century records are from sheltered estuaries in Devon and Cornwall and on the shore-end of the Bude Canal. There are old records from northern Scotland (Orkney Islands). Elsewhere known from France and Spain.
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.