original description
(of Helix bicallosa L. Pfeiffer, 1853) Pfeiffer, L. (1853). <i>Monographia heliceorum viventium. Sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum</i>. Volumen tertium [Vol. 3]. Lipsiae: Brockhaus. i-viii + 711 pp. , available online at https://biodiversitylibrary.org/page/11646394
page(s): 638-639; note: As Helix bicallosa Frivaldszky mss. [details]
basis of record
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): 201, Fig. 123B [details] Available for editors [request]
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): 281, pl. 33Б; textfig. 138 [details]
From editor or global species database
Type locality "Siberia"; the exact locality is not given [details]