@article{MolluscaBase:SourceID:220838, author = {Lea, I. }, journal = {Transactions of the American Philosophical Society}, note = {Issued in late 1831 (Scudder, 1885, p. 3)}, title = {Observations on the naïades, and descriptions of new species of that and other families}, url = {http://biodiversitylibrary.org/page/24786630}, year = {1831} }