(ofHelix radiatula Alder, 1830)Alder, J. (1830). A catalogue of the land and fresh-water testaceous Mollusca found in the vicinity of Newcastle upon Tyne, with remarks. <em>Transactions of the Natural History Society of Northumberland and Durham.</em> 1(1): 26-41., available online athttps://biodiversitylibrary.org/page/33248016 page(s): 38 [details]
original description(ofHelix radiatula Alder, 1830)Alder, J. (1830). A catalogue of the land and fresh-water testaceous Mollusca found in the vicinity of Newcastle upon Tyne, with remarks. <em>Transactions of the Natural History Society of Northumberland and Durham.</em> 1(1): 26-41., available online athttps://biodiversitylibrary.org/page/33248016 page(s): 38 [details]
basis of recordInvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]