RHODOPHYTA : CORALLINALES : CorallinaceaeRED ALGAE

Titanoderma pustulatum (Lamouroux) Nägeli


Description: Encrusting, small attached as a disk up to 6mm diameter with free, often thickened, margins, surface smooth.

Habitat: Common. Epiphytic on Corallina officinalis or Furcellaria, overgrowing Melobesia. Common in rock pools of the lower littoral into the sublittoral to depths of 15m or more.

Distribution: Widespread around the British Isles from the Shetlands to the Channel Islands. Europe: Mediterranean, Azores, Portugal, Atlantic coasts of Spain and France, Baltic, Norway and the Faroes. Atlantic coast of North America: Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and Long Island. Further afield: Bahamas, Jamaica, the Canary Isles, Pacific U.S.A., India, Japan, Australia, New Zealand and West Africa.

Similar Species: Few encrusting corallines can easily be determined with confidence. Microscopic examination often required.

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.


 Morton, O. & Picton, B.E., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=ZM5270

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