title: Rostanga setidens
text: # Rostanga setidens
  
  Rostanga setidens is a species of sea slug, a dorid nudibranch. It is a marine gastropod mollusc in the family Discodorididae.
  
  ## Distribution
  
  This species was described from Norway.
  
  ## Description
  
  Rostanga setidens is white in colour, a character shared only with Rostanga phepha and Rostanga ankyra.
  
  