title: Plesiocystiscus violaceus
text: # Plesiocystiscus violaceus
  
  Plesiocystiscus violaceous is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Cystiscidae.
  
  ## Description
  
  The length of the shell attains 2.6 mm.
  
  ## Distribution
  
  The species is endemic to São Tomé and Príncipe.
  
  