title: Calliostoma tenebrosum
text: # Calliostoma tenebrosum
  
  Calliostoma tenebrosum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
  
  ## Description
  
  The size of the shell varies between 8 mm and 15 mm
  
  ## Distribution
  
  This species occurs in the Atlantic Ocean off Eastern Brazil
  
  