• Kingdom: Plantae
  • Phylum: Rhodophyta
  • Class: Florideophyceae
  • Order: Gigartinales
  • Family: Phyllophoraceae
  • Scientific name: Coccotylus truncatus
  • Norwegian: hummerblekke


Fleshy, dark red, flattened fronds. It may grow to a height of 5-10 cm, in very variable shapes. New fronds grow from the upper margin of existing ones. When fertile, small spherical growths (1-2 mm) can be found along the margins.


Grows on rocky substrate in the subtidal zone, preferably on sheltered locations.


It seems to be widespread on the northern hemisphere.