MolluscaBase name details
original description
(of Lymnaeus caperatus Say, 1829) Say T. (1829-1831). Descriptions of some new terrestrial and fluviatile shells of North America. <em>The Disseminator of Useful Knowledge; containing hints to the youth of the U. States, from the School of Industry. New Harmony, Indiana.</em> 2: 229-245.
page(s): 230 [details]
basis of record
Dall, 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 at https://www.biodiversitylibrary.org/page/21386445
page(s): 79, fig. 63 [details]
additional source
Frierson, L. S. (1900). An hour on the great raft. <em>The Nautilus.</em> 14(6): 67-69 [October]., available online at https://www.biodiversitylibrary.org/page/1731578
page(s): 68; note: Possible identification. [details]