MolluscaBase taxon details
original description
(of Helix (Clausilia) varians C. Pfeiffer, 1828) Pfeiffer, C. (1821-1828). <i>Naturgeschichte deutscher Land- und Süsswasser-Mollusken</i>. Weimar. Abt. 1: i-x, 1-134, pls 1-8 [1821]; Abt. 2: i-viii, 1-40, pls 1-8 [1825]; Abt. 3: i-vi, 1-84, pls 1-8 [1828]. , available online at https://www.biodiversitylibrary.org/page/52682383 page(s): Abt. 3, p. 40, pl. 7. Fig. 24, 25 [details]
original description
(of Helix (Clausilia) diaphana C. Pfeiffer, 1828) Pfeiffer, C. (1821-1828). <i>Naturgeschichte deutscher Land- und Süsswasser-Mollusken</i>. Weimar. Abt. 1: i-x, 1-134, pls 1-8 [1821]; Abt. 2: i-viii, 1-40, pls 1-8 [1825]; Abt. 3: i-vi, 1-84, pls 1-8 [1828]. , available online at https://www.biodiversitylibrary.org/page/52682383 page(s): 40, Taf, VII. Fig. 20. 21 [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
Kerney, M. P., Cameron, R. A. D. & Jungbluth, J.-H. (1983). Die Landschnecken Nord- und Mitteleuropas. Ein Bestimmungsbuch für Biologen und Naturfreunde. <em>Verlag Paul Parey.</em> 384 pp., 24 plates. [Summer or later]. Hamburg / Berlin (Paul Parey). page(s): 219 [details] Available for editors [request]
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