MolluscaBase name details
original description
(of Pythohelix Swainson, 1840) Swainson, W. (1840). A treatise on malacology; or the natural classification of shells and shell-fish. Longman, London, viii + 419 pp., available online at http://www.biodiversitylibrary.org/item/33450
page(s): 332 [details]
basis of record
Pilsbry, H. A. (1903). The use of the generic name <i>Helicostyla</i>. <em>The Nautilus.</em> 17(5): 58., available online at https://www.biodiversitylibrary.org/page/1726481
note: Pilsbry incorrectly states that Moerch (1865: 385) introduced Pythohelix. It was introduced by Swainson (1840: 332). [details]
additional source
Mörch, O. A. L. (1865). Quelques mots sur un arrangement des mollusques pulmonés terrestres (Géophiles, Fér.) basé sur le système naturel. <em>Journal de Conchyliologie.</em> 13: 376-396., available online at https://www.biodiversitylibrary.org/page/15133987
page(s): 385 [details]