original description(of)Jeffreys, J. G. (1870). Norwegian Mollusca. <em>Annals and Magazine of Natural History.</em> (4) 5: 438-448 [giugno]., available online athttp://biodiversitylibrary.org/page/19266844 page(s): 445 [details]
basis of recordGofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online athttp://www.vliz.be/imisdocs/publications/ocrd/254404.pdf[details]