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.

Glossobalanus sarniensis

Range & Status

This fragile, dull brown, cylindrical worm-like species grows to a length of 50cm and is found in shell-gravel sediments and clean or muddy sand from extreme low water to a depth in excess of 60m. There are five relatively old (1950-1960) Cornish records; from the Fal and Helford estuary complex and from between Rame Head and the Eddystone Lighthouse. More recently it has been recorded from the Isles of Scilly (Tresco). Elsewhere it is known from the south coast of Devon, the Channel Islands and north to Loch Foyle and Co. Cork in Southern Ireland and Strangford Loch in Northern Ireland (Burdon-Jones & Patil, 1960).


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.