MolluscaBase taxon details
original description
(of Helix circumfirmata Redfield, 1853) Redfield, J.H. (1853). Descriptions of new species of Helicidae. <em>Annals and Lyceum of Natural History, New York.</em> 6: 14-18., available online at https://www.biodiversitylibrary.org/page/16023604 page(s): 16-17 [details]
original description
(of Helix discrepans L. Pfeiffer, 1863) Pfeiffer, L. (1863). Zwei neue Landschnecken von Bermuda. <em>Malakozoologische Blatter.</em> 11: 1-2., available online at https://www.biodiversitylibrary.org/page/16079901 page(s): 1-2 [details]
original description
(of Poecilozonites circumfirmatus var. caliban Peile, 1924) Peile, A. J. (1924). Notes on the genus <i>Poecilozonites</i>; with descriptions of new species. <em>Proceedings of the Malacological Society of London.</em> 16(1): 16-23. [19 April]. page(s): 19 [details] Available for editors [request]
original description
(of Poecilozonites peilei Vanatta, 1925) Vanatta, E. G. (1925). Four new species of shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 76: 423-425. ["1924"; February 1925]. page(s): 423, figs 1-2 [details]
context source (Bermuda)
Peile, A. J. (1924). Notes on the genus <i>Poecilozonites</i>; with descriptions of new species. <em>Proceedings of the Malacological Society of London.</em> 16(1): 16-23. [19 April]. [details] Available for editors [request]
basis of record
Bieler, R. & Slapcinsky, J. (2000). A case study for the development of an island fauna: Recent terrestrial mollusks of Bermuda. <em>Nemouria.</em> 44: 1-99., available online at https://www.biodiversitylibrary.org/page/45974319 page(s): 54, fig. 37 [details]
additional source
Gould, S. J. (1971). Environmental control of form in land snails: a case of unusual precision. <em>The Nautilus.</em> 84(3): 86-93, fig. 1., available online at https://www.biodiversitylibrary.org/page/8516735 [details]
From editor or global species database
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