Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Cornish Red Data (2009)

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.

Pileolaria berkeleyana

Range & Status

Possibly an introduced species (Thorp et al ., 1986). Widespread in warm and warm

temperate waters but in Britain recorded only from southern international ports of

Portsmouth, Plymouth and Falmouth. Found in Falmouth Harbour and Plymouth and the east of Plymouth Sound. A benthic species, sublittoral at depths of 2-10m; a tiny tubeworm forming a coiled tube measuring approximately 1.5mm across, found in muddy sand on rocks, small boulders and Sargassum weed; can be locally frequent.


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.