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.

Halophiloscia couchi

Range & Status

A notable Lusitanian species confined to the coasts of southern and western Britain.

Regional Distribution

Found on St. Mary' s and St. Agnes on the Isles of Scilly, and, on mainland Cornwall, at Duckpool, Stanbury Mouth and Marsland Mouth on the northernmost coastline, four sites at Whitsand Bay on the south-east coast, and at Porthhoustock on the east coast of the Lizard Peninsula.

Habitat & Ecology

Restricted to coastal sites where it may be found in shingle or boulder beaches and at the base of eroding cliffs.


None known.


All sites are designated for nature conservation.


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.