MolluscaBase name details
original description
Walker, B. & Pilsbry, H. A. (1902). The Mollusca of the Mt. Mitchell Region, North Carolina. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 54 (2): 413-442, plates 24-25., available online at https://www.biodiversitylibrary.org/page/24686351
page(s): 432, pl. 24, figs. 4-6 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
additional source
Pilsbry, H. A. & Walker, B. (1906). Note on <i>Vitrea approxima</i> and <i>V. vanattai</i>. <em>The Nautilus.</em> 20(5): 57-58., available online at https://www.biodiversitylibrary.org/page/1757586 [details]
From editor or global species database