original description
Gould, A. A. (1841). Report on the Invertebrata of Massachusetts, Comprising the Mollusca, Crustacea, Annelida, and Radiata. Published Agreeably to an Order of the Legislature, by the Commissioners on the Zoological and Botanical Survey of the State. Folsom, Wells, and Thurston, Cambridge, xiii + 373 pp., 15 pls. , available online at http://www.biodiversitylibrary.org/item/76081
page(s): 226, fig. 156 (right hand figure) [details]
basis of record
Burch, J. B. (1982). North American freshwater snails: identification keys, generic synonymy, supplemental notes, glossary, references, index. <em>Walkerana.</em> 1(4): 217-365 [30 December 1982].
page(s): 225 [details] Available for editors [request]
additional source
Baker, F. C. (1928). The fresh water Mollusca of Wisconsin. Part I. Gastropoda. <em>Wisconsin Geological and Natural History Survey Bulletin.</em> 70: xx + 507 pp., available online at https://wgnhs.wisc.edu/catalog/publication/000095/resource/b070
page(s): 18, pl. I, figs. 10, 14 [details]
additional source
Walker, B. (1902). A revision of the carinate Valvatas of the United States. <em>The Nautilus.</em> 15(11): 121–125., available online at http://archive.org/stream/nautilus15amer#page/120/
page(s): 124 [details]
source of synonymy
Clarke, A. H. (1973). The freshwater molluscs of the Canadian Interior Basin. <em>Malacologia.</em> 13(1-2): 1-509., available online at http://biodiversitylibrary.org/page/13110006
page(s): 234 [details]
From editor or global species database
Type locality Vermont, North-Eastern USA [details]