Pallary, P. (1902). Diagnoses de quelques coquilles nouvelles provenant du Maroc (suite). Journal de Conchyliologie. 50 (4) [1901]: 314-315. Paris. [28 April]., available online athttps://www.biodiversitylibrary.org/page/15860483 page(s): 315 [details]
original descriptionPallary, P. (1902). Diagnoses de quelques coquilles nouvelles provenant du Maroc (suite). Journal de Conchyliologie. 50 (4) [1901]: 314-315. Paris. [28 April]., available online athttps://www.biodiversitylibrary.org/page/15860483 page(s): 315 [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. Patrimoines Naturels. 50: 180-213., available online athttp://www.vliz.be/imisdocs/publications/ocrd/254404.pdf[details]
additional sourceVerduin A. (1979). Differences in shell morphology between fossil and Recent Gibbula ditropis (Wood, 1848), a marine gastropod from the Coralline Crag in England, and the coasts of S. Spain and NW. Africa. Basteria. 43 (1/4): 1-5., available online athttp://natuurtijdschriften.nl/download?type=document&docid=596697 note: proposed as synonym of the fossil Gibbula ditropis (Wood, 1848) [details]