MolluscaBase taxon details
original description
(of Helix pomumadami Green, 1834) Green, J. (1834). Notes of a naturalist. The Cabinet of Natural History and American Rural Sports, 3(2): 34-39.
page(s): 35 [details]
original description
(of Helix interna Say, 1821) Say, T. (1821). Description of univalve shells of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 2(1): 149-179., available online at https://www.biodiversitylibrary.org/page/36831337
page(s): 155 [details]
original description
(of Helix interna var. albina W. G. Binney, 1858) Binney, W. G. (1858). Notes on American land shells, No. 4. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 10: 197-211., available online at https://www.biodiversitylibrary.org/page/47535790
page(s): 202 [details]
original description
(of Zonites internus f. pallidus T. D. A. Cockerell, 1893) Cockerell, T. D. A. (1893). Notes on the variation of some North American Mollusca. <em>The British Naturalist.</em> 3(28): 80-82.
page(s): 80 [details]
basis of record
Wurtz, C. B. (1948). Some land snails from West Virginia with a description of a new species. <em>The Nautilus.</em> 61(3): 80-89, pl. 6, figs. 3-4., available online at https://www.biodiversitylibrary.org/page/8284780
page(s): 87-88, pl. 6, fig. 4 [details]