title: Mesophyllum expansum
text: # Mesophyllum expansum
  
  Mesophyllum expansum is a species of red alga belonging to the family Hapalidiaceae.
  
  ## Description
  
  Mesophyllum expansum can reach a diameter of about 30 centimetres (12 in). Illuminated by artificial light they show a beautiful pink color, with hanging branches. These calcareous encrusting organisms can be observed occasionally near the surface and can reach a depth of 70 metres (230 ft).
  
  ## Distribution
  
  This species is widespread in the Mediterranean Sea.
  
  