Say, T. (1821). Description of univalve shells of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 2(1): 149-179., available online athttps://www.biodiversitylibrary.org/page/36831337 page(s): 166 [details]
original descriptionSay, T. (1821). Description of univalve shells of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 2(1): 149-179., available online athttps://www.biodiversitylibrary.org/page/36831337 page(s): 166 [details]
additional sourceWhittaker, E. J. (1919). Notes on variation in <i>Planorbis campanulatus</i> Say, from Blue Sea Lake, Quebec. <em>The Nautilus.</em> 32(4): 127-134, pl. 10., available online athttps://www.biodiversitylibrary.org/page/1772221[details]
Present Inaccurate Introduced: alien Containing type locality