MolluscaBase name details
original description
(of Helix instabilis Rossmässler, 1838) Rossmässler, E. A. (1838-1844). Iconographie der Land- & Süßwasser- Mollusken, mit vorzüglicher Berücksichtigung der europäischen noch nicht abgebildeten Arten. (1) 2 (1/2) [7/8]: 4 + 1-44. pl 31-40 [≥ June 1838]; (1) 2 (3/4) [9-10]: I-IV + 1-46. pl. 41-50 [≥ Sept. 1839]; (1) 2 (5) [11]: I-IV + 1–15. pl. 51–55 [≥ June 1842]; (1) 2 (6) [12]: I-IV + 1-37. pl. 56-60 [≥Sept. 1844]. [Dresden und Leipzig (Arnoldische Buchhandlung)]., available online at https://biodiversitylibrary.org/page/24986222
page(s): (1) 2 (1/2) [7/8]: 33, Taf. XXXVIII, Fig. 518 [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
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): 190, Fig. 112A [details] Available for editors [request]
additional source
Duda, M., Haring, E., Bieringer, G., Eschner, A., Mrkvicka, A. & Mason, K. (2018). Taxonomic reassessment of Helicopsis austriaca Gittenberger, 1969 and its relationships to H. striata (O.F. Müller, 1774) and H. hungarica (Soos & H. Wagner, 1935) (Eupulmonata: Helicoidea). <em>Journal of Molluscan Studies.</em> 84: 432–450., available online at https://doi.org/10.1093/mollus/eyy044 [details]