original description
(of Helix umbilicata Montagu, 1803) Montagu, G. (1803). Testacea Britannica or natural history of British shells, marine, land, and fresh-water, including the most minute: Systematically arranged and embellished with figures. J. White, London, Vol. 1, xxxvii + 291 pp;; Vol. 2, pp. 293–606, pl. 1-16., available online at http://www.biodiversitylibrary.org/item/78694
page(s): 434, pl. 13 fig. 2 [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
Gittenberger, E. & Bank, R.A. (1996). A new start in <i>Pyramidula</i> (Gastropoda Pulmonata: Pyramidellidae). <em>Basteria.</em> 60 (1/3): 71-78. Leiden [23 August].
page(s): 77 [details] Available for editors [request]
source of synonymy
Razkin, O., Gomez-Moliner, B. J., Vardinoyannis, K., Martinez-Orti, A. & Madeira, M. J. (2016). Species delimitation for cryptic species complexes: case study of Pyramidula (Gastropoda, Pulmonata). <em>Zoologica Scripta.</em> 46: 55–72. [published online: 27 July 2016]. [details] Available for editors [request]
From editor or global species database