original description
(of Helix pygmaeum Draparnaud, 1801) Draparnaud, J. P. R. (1801). <i>Tableau des mollusques terrestres et fluviatiles de la France</i>. Montpellier / Paris (Renaud / Bossange, Masson & Besson). 1-116. , available online at https://www.biodiversitylibrary.org/page/28587765
page(s): 93 [details]
original description
(of Helix schwerzenbachii Calcara, 1841) Calcara, P. (1841). Monografie dei generi Spirorbis e Succinea, seguite da alcune nuove specie di conchiglie siciliane. Giornale di Scienze Lettere e Arti per la. <em>Sicilia.</em> 76(226): 86-93., available online at http://books.google.es/books?id=3psEAAAAQAAJ&pg=RA1-PA86
page(s): 90 [details]
original description
(of Helix flocculus Morelet, 1858) Morelet, A. (1858). Coquilles terrestres du Kamtchatka. <em>Journal de conchyliologie.</em> 7 (1): 7-22., available online at https://www.biodiversitylibrary.org/page/15862980
page(s): 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]
additional source
Schileyko, A. A. & Rymzhanov, T. S. (2013). Fauna of land mollusks (Gastropoda, Pulmonata Terrestria) of Kazakhstan and adjacent territories. <em>Moscow-Almaty: KMK Scientific Press.</em> 389 pp., available online at http://ashipunov.info/shipunov/school/books/shilejko2013_fauna_nazemn_moll_kz.djvu
page(s): 149, pl. 12 B [details]
additional source
Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. <em>Sofia/Moskva (Pensoft).</em> 312 pp., 142 plates. [June] [= Pensoft Series Faunistica No 87].
page(s): 113, Fig. 54D [details] Available for editors [request]
additional source
Hanna, G. D. (1910). Three shells not hitherto reported from the District of Columbia. <em>The Nautilus.</em> 24(2): 24., available online at https://www.biodiversitylibrary.org/page/1760825 [details]
From editor or global species database