Baker, F.C. (1926). "Nomenclatorial notes on American fresh water Mollusca". Transactions of the Wisconsin Academy of Sciences, Arts and Letters. 22: 195.
External links
Johnson, P. D.; Bogan, A. E.; Brown, K. M.; Burkhead, N. M.; Cordeiro, J. R.; Garner, J. T.; Hartfield, P. D.; Lepitzki, D. A. W.; Mackie, G. L.; Tarpley, T. A.; Tiemann, J. S.; Whelan, N. V.; Strong, E. E. (2013). "Conservation status of freshwater gastropods of Canada and the United States". Fisheries. 38 (6): 247–282.{{cite journal}}: CS1 maint: multiple names: authors list (link)