MolluscaBase name details
original description
(of Physa elliptica I. Lea, 1834) Lea, I. (1834). Observations on the naïades; and descriptions of new species of that, and other families. <em>Transactions of the American Philosophical Society.</em> (NS) 5: 23-119, pls 1-19 [August or September 1834]., available online at http://biodiversitylibrary.org/page/35957690
page(s): 83, pl. 19, fig. 83 [details]
basis of record
Baker, F. C. (1900). A revision of the physae of northeastern Illinois. <em>The Nautilus.</em> 14(2): 16-24, text-figures 1-7 [June]., available online at https://www.biodiversitylibrary.org/page/42800074
page(s): 23, text-figure 6 [details]