Description: Thallus calcareous, articulated, to 20 cms long with pinnate branches growing from a crustose base.

Habitat: Epilithic in the lower littoral and upper sublittoral.

Distribution: Uncommon and apparently rare but probably under-recorded in the British Isles: Ireland, Wales, England and the Channel Islands. Europe: Mediterranean, Azores, Portugal, Atlantic coast of Spain and France. Further afield: Artic Sea, Canary Islands, Senegal and Argentina.

Similar Species: Haliptilon squamatum and Corallina officinalis.

Distribution Map from NBN: Corallina elongata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Corallina elongata at iNaturalist World Species Observations database.

WoRMS: Corallina elongata at World Register of Marine Species. Accepted name: Ellisolandia elongata (J.Ellis & Solander) K.R.Hind & G.W.Saunders, 2013. AphiaID: 732248.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Corallinophycidae; Corallinales; Corallinineae; Corallinaceae; Corallinoideae; Corallineae; Corallina