title: Rostanga rubra
text: # Rostanga rubra
  
  Rostanga rubra, is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Discodorididae.
  
  ## Distribution
  
  This species was described from Nice, France. It has been reported from Norway to Spain on the Atlantic Ocean coasts of Europe and from the Canary Islands and Madeira.
  
  ## Description
  
  Rostanga rubra is a bright orange to reddish-orange in colour and the dorsum is covered with caryophyllidia; in general it is very similar to other species of Rostanga.
  
  ## Ecology
  
  This nudibranch is reported to feed on the red sponges, Ophlitaspongia seriata, Clathria atrasanguinea and Ophlitaspongia kildensis (family Microcionidae).
  
  