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
Very local on the western coast of Britain and the eastern coast of Ireland. Probably
under-recorded due to the nature of the habitat in which it occurs.
Recorded in seven 10km squares, from most of the islands in the Isles of Scilly, also from St. Ives, Helford Passage, Porthcurnick, Gyllingvase and Hannafore Point.
Habitat & Ecology
Recorded from the littoral zone, beneath stones and in rock crevices.
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.