Vanatta, E. G. (1920). New land shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 72: 203-206., available online athttps://www.biodiversitylibrary.org/page/26309791 page(s): 206, pl. 6, figs. 4-5 [details]
original descriptionVanatta, E. G. (1920). New land shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 72: 203-206., available online athttps://www.biodiversitylibrary.org/page/26309791 page(s): 206, pl. 6, figs. 4-5 [details]
Present Inaccurate Introduced: alien Containing type locality