MolluscaBase name details
original description
(of Limneus umbrosus Say, 1832) Say, T. (1830-1834). American Conchology, or descriptions of the shells of North America. Illustrated by coloured figures from original drawings executed from nature. School Press, New Harmony, Indiana. Part 1 (1830a); Part 2 (April 1831a); Part 3 (September 1831a); Part 4 (March 1832); Part 5 (August 1832); Part 6 (April 1834); Part 7 (1834?, published after Say's death; edited by T. A. Conrad)., available online at http://biodiversitylibrary.org/page/7959266
page(s): 109, pl. 31, fig. 1 [details]
basis of record
Baker, F. C. (1911). The Lymnaeidae of North and Middle America, recent and fossil. <em>The Chicago Academy of Sciences, special publication.</em> 3: 1-539., available online at https://www.biodiversitylibrary.org/page/18164581
page(s): 323 [details]