Smith, E. A. (1893). Descriptions of six new species of land-shells from Annam. <em>Proceedings of the Malacological Society of London.</em> 1: 10-13., available online athttps://biodiversitylibrary.org/page/15167289 page(s): 11 [details]
MolluscaBase eds. (2021). MolluscaBase. Helix (Hadra) pachychilus E. A. Smith, 1893. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1430443 on 2024-04-28
original descriptionSmith, E. A. (1893). Descriptions of six new species of land-shells from Annam. <em>Proceedings of the Malacological Society of London.</em> 1: 10-13., available online athttps://biodiversitylibrary.org/page/15167289 page(s): 11 [details]
From editor or global species database
Authority Description of Pilsbry, attributed to Smith, published prior (refer to remark at end of article on p. 13) [details]
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