original description
(of Bulla scabra O. F. Müller, 1784) Müller, O. F. (1784). Zoologia danica seu animalium Daniae et Norvegiae rariorum ac minus notorum historia descriptiones et historia. <em>[book].</em> [two volumes] 1: 1-103 / 2: 1-124 Weygand., available online at https://www.biodiversitylibrary.org/page/12938667
page(s): 90 [details]
basis of record
Ohnheiser, L. T.; Malaquias, M. (2013). Systematic revision of the gastropod family Philinidae (Mollusca: Cephalaspidea) in the north-east Atlantic
Ocean with emphasis on the Scandinavian Peninsula. <em>Zoological Journal of the Linnean Society.</em> 167: 273-326., available online at https://doi.org/10.1111/zoj.12000 [details]
additional source
Gofas, 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 at http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf [details]
From editor or global species database