original description
(of Helix radiatula Alder, 1830) Alder, J. (1830). A catalogue of the land and fresh-water testaceous Mollusca found in the vicinity of Newcastle upon Tyne, with remarks. <em>Transactions of the Natural History Society of Northumberland and Durham.</em> 1(1): 26-41., available online at https://biodiversitylibrary.org/page/33248016
page(s): 38 [details]
original description
(of Helix hammonis Strøm, 1765) Strøm, H. (1765). Beskrivelse over Norske insecter, forste stykke. <em>Det Trondheimske Selskab Skrifter.</em> 3: 376–439, pl. VI.
page(s): 435, pl. VI Fig XVI [details]
original description
(of Helix viridula Menke, 1830) Menke, K. T. (1830). <i>Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur; cum synonymia critica et novarum specierum diagnosibus</i>. Ed. 2, auctior et emendatior. Georg Uslar, Pyrmont. xvi + 168 [+ 1, errata] pp. , available online at http://biodiversitylibrary.org/page/13107961
page(s): 127 [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): 162, pl. 14 Б [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): 122, Fig. 60A [details] Available for editors [request]
From editor or global species database
Type locality Norway, without a precise locality [details]