MolluscaBase taxon details
original description
(of Helix redtenbacheri L. Pfeiffer, 1856) Pfeiffer, L. (1856). Bericht über weitere Mittheilungen des Herrn Zelebor. <em>Malakozoologische Blätter. Cassel (Theodor Fischer).</em> 3 (15): 175-186 [Oktober 1856]., available online at https://www.biodiversitylibrary.org/page/15865142 page(s): 176 [details]
original description
(of Helix cerigottana O. Boettger, 1894) Boettger, O. (1894). Die Binnenschnecken der griechischen Inseln Cerigo und Cerigotto. <em>Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft.</em> 26 (1/2): 1-12. Frankfurt am Main [January/February]., available online at https://www.biodiversitylibrary.org/page/15601408 [details]
original description
(of Helix grelloisii Bourguignat, 1857) Bourguignat, J. R. (1857). Aménités malacologiques. <em>Revue et Magasin de Zoologie pure et appliquée, séries 2.</em> 9: 3-21, pls 1-4, 8-10., available online at https://www.biodiversitylibrary.org/page/13712174 page(s): 9, pl. 8, figs 10-12 [details]
original description
(of Helix malleolata Westerlund, 1898) Westerlund, C. A. (1898). Novum specilegium malacologicum. Neue Binnenconchylien aus der paläarktischen Region. <em>Annuaire du Musée Zoologique de l'Académie Impériale des Sciences de St.-Pétersbourg.</em> 3 (2): 155-183. St.-Petersburg [December]., available online at https://www.biodiversitylibrary.org/page/8651422 page(s): 157 [details]
original description
(of Helix (Fruticicola) proclivis E. von Martens, 1889) Martens, E. von. (1889). Griechische Mollusken. Gesammelt von Eberh. von Örtzen. <em>Archiv für Naturgeschichte.</em> 55, 1 (2): 169‑240, pl. 9‑11. Berlin., available online at https://www.biodiversitylibrary.org/page/6236939 page(s): 193, pl. 10, fig. 8 [details]
basis of record
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017. [details] 
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