original description(ofLymneus humilis Say, 1822)Say, T. 1822. Description of univalve terrestrial and fluviatile shells of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia</em> 2(2): 370-381 , available online athttp://biodiversitylibrary.org/page/36831560 page(s): 378 [details]
basis of recordDall, W. H. (1905). <i>Land and fresh water mollusks of Alaska and adjoining regions</i>. in: <i>Alaska. Harriman Alaska Expedition with cooperation of Washington Academy of Sciences</i>. vol. 13: i-vii + 1-171. , available online athttps://www.biodiversitylibrary.org/page/21386445 page(s): 73, fig. 50 [details]