title: Clanculus cognatus
text: # Clanculus cognatus
  
  Clanculus cognatus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
  
  ## Description
  
  The size of the shell varies between 3 mm and 9 mm.
  
  ## Distribution
  
  This marine shell occurs off the Ryukyus, Japan, Taiwan and the Philippines
  
  