Amongst the other genera belonging to this group of Euniceans, there are one or two which inhabit tubes. Such is the Sao (Northia tubicola of Johnston, the Nereis tubicola of Müller), and the Onuphis conchilega of Sars.
1869, William Baird, “The Annelidan Worms, or Annelides (Annelida)”, in The Student and Intellectual Observer, volume 3, London: Groombridge & Sons, page 169